CN114239620A - Miniature bar code decoding module with can dismantle subassembly - Google Patents
Miniature bar code decoding module with can dismantle subassembly Download PDFInfo
- Publication number
- CN114239620A CN114239620A CN202111545183.1A CN202111545183A CN114239620A CN 114239620 A CN114239620 A CN 114239620A CN 202111545183 A CN202111545183 A CN 202111545183A CN 114239620 A CN114239620 A CN 114239620A
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- lens
- shell
- circuit board
- aiming
- window
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- 238000005286 illumination Methods 0.000 claims description 19
- 238000005096 rolling process Methods 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 6
- 238000003384 imaging method Methods 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000306 component Substances 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
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- 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
-
- 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
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Stroboscope Apparatuses (AREA)
- Studio Devices (AREA)
Abstract
According to the miniature bar code decoding module with the detachable component, the front shell is provided with the aiming and illuminating window, the illuminating window is detachably embedded with the illuminating lens, the illuminating light source is detachably installed with the first circuit board, and different illuminating light sources and illuminating lenses can be conveniently selected. The lens camera module is connected with the first circuit board as an independent module through the connector in a detachable mode and can be adapted to image sensors of different models. The rear shell can effectively protect the first circuit board and the camera module. The second circuit board with the bar code decoding function is fixed on the front shell and the rear shell through screws, the front shell and the rear shell are fixed, and extra fixing pieces are not needed for fixing between the front shell and the rear shell.
Description
Technical Field
The invention relates to a bar code reading device, in particular to a miniature bar code decoding module with a detachable component.
Background
The bar code reading module is used as a core component for bar code reading, has the complete functions of bar code image acquisition, image processing, bar code image decoding and decoding result output, and is the core structure of various bar code terminal products. With the continuous development of barcode application fields such as mobile payment and logistics transportation, barcode applications are continuously being developed.
With the advent of the non-uniform barcode application environment, there are increasing demands for barcode refinement technology, such as the requirement for variation of illumination brightness and chromaticity, and the requirement for developing hardware with different specifications for different application scenes for image sensors with different pixels. Since the hardware development design requires a long development period, it is easy to make a delay of delivery.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that the hardware of the bar code decoding module in the prior art is solidified once being designed and sold, and the space for modification and upgrading is small.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a miniature barcode decoding module with a detachable component, comprising:
the front shell is provided with an aiming window at the front end, an aiming lens is installed on the aiming window, and an aiming light source accommodating area is correspondingly arranged at the rear part of the aiming lens; the other side of the front end of the front shell, which is opposite to the aiming window, is provided with a lighting window, the lighting window is detachably embedded with a lighting lens, and the rear part of the lighting lens is provided with a lighting source; the front shell is provided with a lens imaging window between the aiming window and the lighting window, and the rear part of the lens imaging window is correspondingly provided with a lens camera module accommodating area.
A lens camera module, comprising: the lens comprises a lens shell, a lens group, an image sensor and a male plug-in; the front part of the lens shell is packaged with a lens group, the image sensor is arranged at the rear part of the lens group, and the rear part of the image sensor is provided with a male plug-in.
The front surface of the first circuit board is provided with an aiming light source and an illumination light source interface, and the illumination light source interface and the illumination light source realize the transmission of electric signals through a flexible connecting component; the front surface of the first circuit board is also provided with a female connector, and the lens camera module is detachably connected and fixed with the first circuit board and is used for transmitting electric signals; the first circuit board is fixed behind the front housing through a fixing member.
The bottom of the rear shell extends forwards to cover the lens camera module, a screw hole is formed in the top of the rear shell, and the rear portion of the rear shell covers the first circuit board.
And the second circuit board is provided with a bar code decoding processing unit, transmits an electric signal with the first circuit board through a connecting piece, and is fixed with the front shell and the rear shell through screws.
Preferably, the lens camera module and the shell are directly provided with a damping and filling assembly, and the damping and filling assembly is two groups of foam with inner circles and outer circles.
Preferably, the aiming light source is a red laser LED.
Preferably, the aiming lens is a diffractive lens, and the laser light is diffracted by the diffractive lens in a cross-shaped pattern.
Preferably, the illumination light source is a white LED.
Preferably, the image sensor is a CMOS image sensor with global exposure and rolling shutter exposure modes selectable.
The invention has the following beneficial effects:
1. according to the miniature bar code decoding module with the detachable component, the front shell is provided with the aiming and illuminating window, the illuminating window is detachably embedded with the illuminating lens, the illuminating light source is detachably installed with the first circuit board, and different illuminating light sources and illuminating lenses can be conveniently selected. The lens camera module is connected with the first circuit board as an independent module through the connector in a detachable mode and can be adapted to image sensors of different models. The rear shell can effectively protect the first circuit board and the camera module. The second circuit board with the bar code decoding function is fixed on the front shell and the rear shell through screws, the front shell and the rear shell are fixed, and extra fixing pieces are not needed for fixing between the front shell and the rear shell.
2. According to the miniature bar code decoding module with the detachable component, the shock absorption and filling component is arranged between the lens camera module and the front shell, and the shock absorption and filling component is two groups of foam with inner circles and outer squares. The foam that accomodates the district shape through setting up laminating camera lens shape and camera lens camera module can effectual fixed camera lens, thereby prevents to lead to the formation of image fuzzy because equipment motion causes the camera lens shake, influences the decoding rate.
3. According to the miniature bar code decoding module with the detachable component, the image sensor is a CMOS image sensor with global exposure and rolling shutter exposure modes which can be selected, the image acquisition requirements of different scenes are met, global exposure can be selected according to the bar code acquisition requirements of a moving scene, the motion distortion of a bar code image is reduced, rolling shutter exposure can be selected according to the bar code acquisition requirements of a static scene, and the details of the bar code image are improved.
Drawings
FIG. 1 is a schematic structural diagram of a micro barcode decoding module with a detachable component according to the present invention.
FIG. 2 is an exploded view of a micro barcode decoding module with a detachable component according to the present invention.
Fig. 3 is a schematic structural diagram of a lens camera module of a micro barcode decoding module with a detachable component according to the present invention.
The reference signs are: 1-front housing; 12 aiming the lens; 121-aiming the light source accommodation area; 131-an illumination lens; 2-a first circuit board; 21-aiming the light source; 22-an illumination source; 3-a lens camera module; 31-a lens housing; 32-a lens group; 34-a male plug-in; 4-a rear housing; 311-foam cotton; 5-a second circuit board.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
As shown in fig. 1-3, a micro barcode decoding module with a detachable component comprises:
the front shell 1, the front end of the shell 1 is provided with an aiming window, the aiming window is provided with an aiming lens 12, and the rear part of the aiming lens 12 is correspondingly provided with an aiming light source accommodating area 121. The other side of the front end of the front case 1 opposite to the aiming window 11 is provided with an illumination window mounted with an illumination lens 131. The illumination light source 22 is arranged behind the illumination lens 131. The front shell 1 is provided with a lens imaging window between the aiming window and the lighting window, the rear part of the lens imaging window is correspondingly provided with a lens camera module accommodating area 141, and the upper part and the lower part of the lens camera module accommodating area 141 are hollow. The front shell 1 is made of black ABS or PC.
The lens camera module 3 includes: lens housing 31, lens group 32, image sensor (not shown because enclosed in the lens housing), and male plug 34. The front part of the lens shell 31 is packaged with a lens group 32, the image sensor is arranged at the rear part of the lens group, and the rear part of the image sensor is provided with a male plug-in 34.
The image sensor is separately arranged in the lens shell 31 in a dispensing mode, and a male plug-in unit 34 is welded at the rear part of the image sensor. The upper part of the lens shell 31 is cylindrical, the lower part of the lens shell is square, the whole lens shell is in a convex shape, the bar code reading module is different from a mobile phone camera module, certain requirements on the depth of field of an image are met, particularly, the bar code is read remotely, and a certain distance between the lens and an image sensor needs to be guaranteed. The cylindrical formation of image district can be better with outside light projection image sensor's photosensitive array on, the lower part is square and the laminating of square image sensor, reduces the volume, square structure easy to assemble simultaneously.
The front surface of the first circuit board 2 is provided with an aiming light source 21 and an illumination light source interface. The illumination light source 22 and the aiming light source 21. The illumination source interface communicates with the illumination source 22 via a flexible connection assembly to enable transmission of electrical signals. The front surface of the first circuit board 2 is also provided with a female connector, and the lens camera module 3 is detachably connected and fixed with the first circuit board 2 and transmits electric signals. The first circuit board 2 is fixed to the rear of the front case 1 by a fixing member. The fixing piece is a screw.
And the bottom of the rear shell 4 extends forwards to cover the lens camera module, the top of the rear shell is provided with a screw hole, and the rear part of the rear shell covers the first circuit board 2. The rear case 4 is made of the same material as the front case 1.
And the second circuit board 5 is provided with a bar code decoding processing unit, the second circuit board 5 and the first circuit 2 transmit electric signals through a connecting piece, and the connecting piece is preferably an FPC. And fixed with the front case 1 and the rear case 4 by screws.
Preferably, the lens camera module 3 and the front case 1 are directly provided with a shock-absorbing and filling assembly, and the shock-absorbing and filling assembly is two sets of foam 311 with inner circles and outer circles.
Through setting up the cotton 311 of bubble of laminating camera lens shape and camera lens camera module accepting region shape can effectual fixed camera lens, thereby prevent to lead to the formation of image fuzzy because equipment motion causes the camera lens shake, influence decoding rate.
Preferably, the aiming light source 21 is a red laser LED. And the front part of the red laser LED is also provided with a condensing lens.
Preferably, the collimating lens 12 is a diffractive lens that projects a pattern in the shape of a cross.
Preferably, the front case 1 has a height about that of the lens camera module 3. The term "about" is caused by the product mold and assembly tolerance, the height of the shell cannot be completely consistent with that of the lens module, and the height difference between the shell and the lens module is within plus or minus two millimeters.
Preferably, the image sensor is a CMOS image sensor having global exposure and roller shutter exposure modes selectively switchable. The image sensor is a CMOS image sensor with global exposure and rolling shutter exposure modes which can be selected, image acquisition requirements of different scenes are met, global exposure can be selected according to bar code capturing requirements of moving scenes, motion distortion of bar code images is reduced, rolling shutter exposure can be selected according to bar code capturing requirements of static scenes, and bar code image details are improved. It is also possible to select an image sensor of a single exposure mode. Such as a single global exposure, a single rolling shutter exposure of CMOS.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (6)
1. The utility model provides a miniature bar code module of decoding with can dismantle subassembly which characterized in that includes:
the front shell is provided with an aiming window at the front end, an aiming lens is installed on the aiming window, and an aiming light source accommodating area is correspondingly arranged at the rear part of the aiming lens; the other side of the front end of the front shell, which is opposite to the aiming window, is provided with a lighting window, the lighting window is detachably embedded with a lighting lens, and the rear part of the lighting lens is provided with a lighting source; the front shell is provided with a lens imaging window between the aiming window and the lighting window, and the rear part of the lens imaging window is correspondingly provided with a lens camera module accommodating area;
a lens camera module, comprising: the lens comprises a lens shell, a lens group, an image sensor and a male plug-in; the front part of the lens shell is packaged with a lens group, the image sensor is arranged at the rear part of the lens group, the rear part of the image sensor is provided with a male plug-in unit,
the front surface of the first circuit board is provided with an aiming light source and an illumination light source interface, and the illumination light source interface and the illumination light source realize the transmission of electric signals through a flexible connecting component; the front surface of the first circuit board is also provided with a female connector, and the lens camera module is detachably connected and fixed with the first circuit board and is used for transmitting electric signals; the first circuit board is fixed at the rear of the front shell through a fixing piece;
the bottom of the rear shell extends forwards to cover the lens camera module, the top of the rear shell is provided with a screw hole, and the rear part of the rear shell covers the first circuit board;
and the second circuit board is provided with a bar code decoding processing unit, transmits an electric signal with the first circuit board through a connecting piece, and is fixed with the front shell and the rear shell through screws.
2. The miniature barcode decoding module of claim 1, wherein the lens camera module and the housing are directly provided with a shock absorbing and filling assembly, and the shock absorbing and filling assembly is two sets of foam with inner circle and outer square.
3. The miniature barcode decoding module of claim 2, wherein the aiming light source is a red laser LED.
4. The miniature barcode decoding module of claim 3, wherein the collimating lens is a diffractive lens, and the diffractive lens diffracts the laser light into a cross-shaped pattern.
5. The miniature barcode decoding module of claim 4, wherein the illumination source is a white LED.
6. The miniature barcode decoding module of claim 5, wherein the image sensor is a CMOS image sensor with global exposure and rolling shutter exposure modes selectable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111545183.1A CN114239620B (en) | 2021-12-16 | 2021-12-16 | Miniature bar code decoding module with detachable assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111545183.1A CN114239620B (en) | 2021-12-16 | 2021-12-16 | Miniature bar code decoding module with detachable assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114239620A true CN114239620A (en) | 2022-03-25 |
| CN114239620B CN114239620B (en) | 2024-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111545183.1A Active CN114239620B (en) | 2021-12-16 | 2021-12-16 | Miniature bar code decoding module with detachable assembly |
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| Country | Link |
|---|---|
| CN (1) | CN114239620B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140023662A1 (en) * | 2010-10-29 | 2014-01-23 | Immunogen, Inc. | Non-antagonistic egfr-binding molecules and immunoconjugates thereof |
| CN109815767A (en) * | 2019-01-30 | 2019-05-28 | 福州符号信息科技有限公司 | A kind of bar code reading module with double circuit board |
| CN212322275U (en) * | 2020-06-04 | 2021-01-08 | 福州符号信息科技有限公司 | Bar code reading module with laser aiming unit |
-
2021
- 2021-12-16 CN CN202111545183.1A patent/CN114239620B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140023662A1 (en) * | 2010-10-29 | 2014-01-23 | Immunogen, Inc. | Non-antagonistic egfr-binding molecules and immunoconjugates thereof |
| CN109815767A (en) * | 2019-01-30 | 2019-05-28 | 福州符号信息科技有限公司 | A kind of bar code reading module with double circuit board |
| CN212322275U (en) * | 2020-06-04 | 2021-01-08 | 福州符号信息科技有限公司 | Bar code reading module with laser aiming unit |
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| Publication number | Publication date |
|---|---|
| CN114239620B (en) | 2024-02-09 |
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