CN104866799B - A kind of bar code reading engine for obtaining image data - Google Patents
A kind of bar code reading engine for obtaining image data Download PDFInfo
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Abstract
The present invention relates to a kind of bar code reading engine for obtaining image data, including image-forming assembly, MIPT decoding chips aim at light source, lighting source and input/output module；The image-forming assembly, MIPT decoding chips extremely aim at light source, lighting source and input/output module communication connection, the input/output module and PERCOM peripheral communication；Image-forming assembly integrated design is reduced to the overall volume of bar code reading engine；Using MIPT decoding chips, solves the compatibility issue of entire bar code reading engine and simplify design, not only increased bandwidth, improved performance, but also cost, complexity, power consumption and EMI can be reduced；Using integrated global electronic shutter image sensor array, multiple images pixel can be captured within the same time for exposure, make image quality higher；In addition, each component of bar code reading engine passes through meticulous layout designs, occupying for space can be maximally reduced, the volume of the engine is reduced.
Description
Technical field
The invention belongs to automatic identification industries, are related to a kind of bar code reading engine for obtaining image data.
Background technology
Two-dimensional bar code is the black and white being distributed in plane (on two-dimensional directional) according to certain rule with specific geometric figure
Alternate matrix area, the matrix area is to record symbol information.Quick Response Code can be divided into stack Quick Response Code and matrix form
Quick Response Code bar code.Stack Quick Response Code is stacked by the bar code of multirow cutting back；Matrix two-dimensional barcode is with matrix
Form forms, and indicates binary one with " point " on matrix respective element position, binary zero is indicated with sky, by point and idle discharge
Row composition data code.In daily life and commercial Application, the use of bar code is more and more extensive, such as：Retail trade, logistics
Industry, financial industry are increasing to the use demand of bar code.
Requirement of the rapid development of barcode technology to bar code reading taking equipment is also higher and higher, and bar code reads engine as reading
One important component of bar code, the bar code decoding engine volume to circulate on existing market is big, poor compatibility, low production efficiency
Under, it is of high cost.In terms of electronic circuit, the CMOS used is produced as the technique of early stage, and production time is longer, is made using pixel
The CMOS productive years, production time was long in 2005, and using the CMOS of pixel 6*6um^2, total pixel is 752*480,
Wafer size is that 9mm*9mm photosensitive areas are 4.5mm*2.9mm, and average power consumption is 70mA@3.3V, and frame number is 60 frames/second, interface
For DVP；From optics aspect, using spherical mirror head mould group, visual field is generally 42 ° or so, and the numerical value of aperture F# is 6 or so, camera lens
It is separate type component with CMOS；In terms of production, dispensing after lens focusing need to be fixed, increase production process.
For the bar code decoding engine to circulate on existing market there are various deficiencies, volume is big, uses spherical mirror head mould
Group is limited to production requirement so that the volume of module can not reduce；Its poor optical properties, visual field is small, influences to use, and aperture is small,
Need extraneous light filling, power consumption big；It is compatible with poor performance, do not support MIPI interfaces, can only external MIPI bridging chips, be added to
This；Its speed is slow, and the CMOS frame numbers used are low, and reading speed is slow；Its power consumption is high, and the CMOS power consumptions used are big；Its price is high,
The size of CMOS wafer is big, cost higher, and the decoding chip used needs external connection without MIPI interfaces；Its life cycle
Uncontrollable, CMOS is the product of early stage, and production time is longer, is easier to be eliminated and influence subsequent production；Its low production efficiency,
Camera lens is fixed again after first focusing with CMOS, and the requirement to production environment is high, and the error being artificially introduced is big, and production efficiency is relatively low.
Invention content
The purpose of the present invention is to provide one kind, and simple in structure, compatible performance is good, and image quality is high, and small is used to obtain
Take the bar code reading engine of image data.
In order to solve the above-mentioned technical problem it present invention employs following technical solution, provides
A kind of bar code reading engine for obtaining image data, it is characterised in that：Including image-forming assembly, MIPI decodes core
Piece aims at light source, lighting source and input/output module；The image-forming assembly, aims at light at the decoding chip for configuring MIPI agreements
Source, lighting source, the second support plate and input/output module communication connection, the input/output module and PERCOM peripheral communication；It is described at
As component is integrally formed, including an integrated global electronic shutter image sensor array and lens, the first support plate, interior set a through-hole
Pedestal, in the through-hole of pedestal, integrated global electronic shutter image sensor array is fixed on the first support plate lens packages,
Pedestal is carried on the first support plate and encapsulates integrated image sensor array；Image-forming assembly is fixed on the second support plate front, aims at
Light source and lighting source are arranged in around image-forming assembly；The decoding chip of the back side fixed configurations MIPI agreements of second support plate；
Input/output module is fixed on the front or the back side of the second support plate；
The chip of configuration MIPI agreements is connected on D-PHY M-PHY physical layers, and D-PHY is synchronized using 1 pair of source
Differential clocks and 1~4 pair of differential data line carry out data transmission；The data transmission of D-PHY uses DDR modes, the object of D-PHY
It manages layer and supports HS patterns and LP patterns, Low Voltage Differential Signal is used under HS patterns, single-ended signal is used under LP patterns.
Wherein, further include a metallic support, be socketed on the outside of pedestal, and image-forming assembly is fixed on the second support plate.
Wherein, image-forming assembly is connect with the second support plate by board to board connector.
Wherein, the lighting source is located at the homonymy or heteropleural of image-forming assembly with aiming light source.
Wherein, the wavelength of the lighting source is 380-750nm.
Wherein, the angle of divergence for aiming at light source is more than or equal to 15 °.
Wherein, first support plate, the second support plate are flexible PCB or hard circuit board.
Wherein, the lens are lens combination, including：Positive lens combines with negative lens, double glued microscope groups are closed, positive lens with
Cemented doublet combination, double glued mirrors are combined with positive lens or two positive lens are combined with negative lens.
In order to solve the above-mentioned technical problem, the present invention also adopts the following technical scheme that, provides a kind of for obtaining image
The bar code reading engine of data, including image-forming module, configure MIPI agreements decoder module, aim at light source, lighting source and touch
Send out module；Image-forming module is integrally formed, including：Lens group receives the light reflected by target area；Integrated global electronic shutter
Image sensor array receives the light of lens group reflection, transmission image pixel to decoder module；Trigger module and decoder module
Communication connection, decoder module are electrically connected with image-forming module, aiming light source, lighting source；
The chip of configuration MIPI agreements is connected on D-PHY M-PHY physical layers, and D-PHY is synchronized using 1 pair of source
Differential clocks and 1~4 pair of differential data line carry out data transmission；The data transmission of D-PHY uses DDR modes, the object of D-PHY
It manages layer and supports HS patterns and LP patterns, Low Voltage Differential Signal is used under HS patterns, single-ended signal is used under LP patterns.
Wherein, the trigger module includes control button and control module, and the control button link control module is described
Control module is electrically connected with image-forming module, aiming light source, lighting source, decoder module.
The beneficial effects of the invention are as follows：The structure of bar code reading engine as a whole, image-forming assembly integration is set
Meter reduces the overall volume of bar code reading engine；Using the decoding chip configured with MIPI agreements, solves entire bar code and know
The compatibility issue of read engine simultaneously simplifies design, had not only increased bandwidth, has improved performance, but also can reduce cost, complexity, power consumption
And EMI；Using integrated global electronic shutter image sensor array, multiple images picture can be captured within the same time for exposure
Element makes image quality higher；In addition, each component of bar code reading engine passes through meticulous layout designs, it can be to greatest extent
Reduction space occupy, reduce the volume of the engine.
Description of the drawings
Fig. 1 show the internal structure schematic diagram of the image-forming assembly of the present invention；
Fig. 2 show the embodiment structure signal of the bar code reading engine for obtaining image data of the present invention
Figure；
Fig. 3 show another embodiment structure signal of the bar code reading engine for obtaining image data of the present invention
Figure；
Fig. 4 show another embodiment structure signal of the bar code reading engine for obtaining image data of the present invention
Figure；
Fig. 5 show the structure diagram of the bar code reading engine for obtaining image data of the present invention.
Label declaration：
1 image-forming assembly of metallic support, 2 lens, 201 pedestal, 202 first support plate 203 integrates global electronic shutter image
204 board to board connector 3 of sensor array aims at 45 second support plate of lighting source, 6 input/output module of light source, 7 MIPI
Decoding chip 8
Specific implementation mode
In order to describe the technical content, the structural feature, the achieved object and the effect of this invention in detail, below in conjunction with embodiment
And attached drawing is coordinated to be explained in detail.
The invention discloses a kind of bar code reading engines for obtaining image data, including image-forming assembly 2, configure MIPI
The decoding chip 8 of agreement aims at light source 4, lighting source 5 and input/output module 7；The image-forming assembly 2, MIPI decoding chips
8, it aims at light source 4, lighting source 5 and input/output module 7 to communicate to connect, the input/output module 7 and PERCOM peripheral communication；
As shown in fig.1, the image-forming assembly 2 is integrally formed, including an integrated global electronic shutter imaging sensor battle array
Row 204 and lens 201, the first support plate 203, the interior pedestal 202 for setting a through-hole, lens 201 are packaged in the through-hole of pedestal 202,
Integrated global electronic shutter image sensor array 204 is fixed on the first support plate 203, and pedestal 202 is carried on the first support plate 203
It goes up and seals integrated image sensor array；The base station of the pedestal 201 is square structure, and boss 202 is cylindrical structure, base
The base station edge of seat 201 is equipped with threaded hole, and pedestal 201 is fixed on by threaded hole on second circuit board.It is fixed using screw
Mode enables entire product more to consolidate, and each device is not allowed easy to be lost, and anti-seismic performance is good, extends the service life of product.
The bar code reading engine further includes the second support plate 6, and image-forming assembly 2 is fixed on 6 front of the second support plate, can adopt
It is connect with the second support plate 6 with board to board connector 3, aims at light source 4 and lighting source 5 is arranged in around image-forming assembly 2；Second carries
Decoding chip 8 is fixed at the back side of plate 6；Input/output module 7 is fixed on the front or the back side of the second support plate 6.
In the above embodiment：
The input/output module 7, can be from for the input of control instruction or for carrying out data transmission with the external world
The control modules such as switch, button, voice receive read bar code instruction after, to configuration MIPI agreements decoding chip 8 and at
It is instructed as component 2 sends job control, and controls lighting source 5 and aim at light source 4 and start.Such as connect by input/output module 7
Control signal is received, control image-forming assembly 2, which obtains image pixel and triggers decoding chip 8, attempts decoding, passes through input/output module 7
Control signal is obtained, control aims at light source 4 and lighting source 5 enables and carries out light filling, illumination etc..The input/output module 7 can
Using FPC connector, flexible winding displacement or other connecting lines can be used to be attached with external equipment and transmit control for FPC connector
Signal processed, image data etc..Wired or wireless communication interface etc. also can be used in the input/output module, as USB connects
Mouth, blue tooth interface, WIFI interface etc..
The image-forming assembly 2 includes integrated global electronic shutter image sensor array 204 and at least one lens
201, which can generate digitized bar code image according to incident optical signal, the integrated global electronic shutter image
The integration modules such as CCD or CMOS may be used in sensor array 204, using dedicated integrated global electronic shutter image sensing
Device array 204 (MT9M021, MT9M031 of such as Aptina), it is small, and can persistently be exposed in an exposure cycle
Multiple images pixel provides the image being more clear, and improves decoded feasibility.In a preferred embodiment, described
Lens 201 are the combination of lens, including：Positive lens combines with negative lens, double glued microscope groups are closed, positive lens and double agglutination lens group
It closes, double glued mirrors are combined with positive lens or two positive lens are combined with negative lens.The image-forming assembly 2 is using integrally formed
Component facilitates the production of product, and the installation error, artificial inaccuracy etc. of repositioning caused by reducing assembling product in the process lack
It falls into, the precision of product is more preferable, and performance is more preferably.
The decoding chip 8 for configuring MIPI agreements uses programmable logic circuit, the MIPI decoding chips 8 to be equipped with MIPI associations
View, decoding chip be internally integrated MIPI functions need not in addition use MIPI chips carry out signal switching, save device
Part and the volume of entire bar code reading engine can be made to reduce, it is small-sized to bar code recognizing apparatus to meet people currently on the market
The demand of change.Decoding chip asks the nuclear interface standardizing inside mobile communication equipment to reduce compatibility after having MIPI functions
The global design for inscribing and simplifying product makes the interface of the product that can increase bandwidth, improve performance, while can reduce into again
Sheet, complexity, power consumption and EMI are only connected to when needed on D-PHY or M-PHY the two physical layers, and D-PHY is adopted
The differential clocks that are synchronized with 1 pair of source and 1~4 pair of differential data line carry out data transmission.Data transmission uses DDR modes, i.e.,
There are data transmission, the physical layer of D-PHY to support HS (highspeed) and 2 kinds of LP (lowpower) in the lower edges of clock
Operating mode uses Low Voltage Differential Signal under HS patterns, and power consumption is larger, but can transmit very high data rate (data speed
Rate is 80M~1Gbps)；Single-ended signal is used under LP patterns, data rate is very low (< 10Mbps), but corresponding power consumption
It is very low.The combination of 2 kinds of patterns ensure that MIPI buses need transmit mass data (such as image) when can with high-speed transfer, and
Power consumption can be reduced again when not needing big data quantity transmission.MIPI decoding chips 8 can be run by single ASIC integrated circuits, be realized
Hardware decodes, and is different from traditional software decoding, and traditional decoding process uses software decoding, error correction, graphics process scheduling algorithm,
Need three integrated circuits.The decodable code system of the decoding chip include it is very big to extra small code 128, Codabar,
Code 93, code 11, code 39, UPC, ENC, MSI etc., the type of at least one bar code symbol can be it is identical or it is a variety of not
With the combination of bar code, specific barcode types may include：The 2D items such as PDF417, DataMatrix, QR code, Maxicode, Aztec
Code sign etc..
The reflecting surface that light source 4 is aimed in target area forms the naked eyes visible light spot of geometry, the aiming light source 4
The light that the naked eyes such as feux rouges, green light can be identified significantly may be used.In a preferred embodiment, the aiming light source
4 angle of divergence is equal to greatly 15 °.
LED light source may be used in lighting source 5, and patch type or pinned LED may be used.Using lighting source
5 carry out light fillings and illumination, and the wavelength of lighting source 5 can be 380-750nm, and the lighting source 5 of different wave length can meet different
Demand can be set according to specific service condition.The angle of divergence of lighting source 5 be 120 ° or other, the angle of divergence is suitable greatly
The camera big for field angle is conducive to cover field range.LED illumination light source 5 can also be band optically focused ball cover or not
Band, the LED light source with ball cover has the smaller angle of divergence, is conducive to long distance illumination, without the LED illumination light source 5 of ball cover
Be conducive to the big lighting apparatus of field of view angle.
At least one aiming light source 4 can be arranged according to the demand of actual use in the same of image-forming assembly 2 with an at least lighting source 5
Side or heteropleural, and the quantity for aiming at light source 4 and lighting source 5 can be set as needed.As shown in fig.2, the one of the present invention
In specific implementation mode, the fixed image-forming assembly 2 on 6 front of the second support plate of a strip, the two of image-forming assembly 2
Side symmetry arrangement, which has, aims at light source 4 and lighting source 5, and input/output module 7 is arranged in another end of second support plate 6；The
The MIPI decoding chips 8 are fixed at the back side of two support plates 6.It is as shown in fig.3, being different from the above embodiment,
The fixed image-forming assembly 2 on the front of two support plates 6 is distributed 2 or more lighting sources on the both sides of photographing module
5,1 or more aiming light source 4 is placed on the both sides up and down of the image-forming assembly 2 respectively, and by the MIPI decoding chips 8
It is fixed on the lower section (front of the second support plate 6) of image-forming assembly 2, the back side setting of second support plate 6 and input/output module
7.As shown in fig.4, image-forming assembly 2, the symmetrical illumination in both sides of image-forming assembly 2 are arranged on the front of second support plate 6
The distribution of both sides up and down of light source 5, image-forming assembly 2 aims at light source 4, and MIPI decoding chips 8 and defeated are placed in the another side of support plate
Enter output module 7.Specifically, in order to which use space to greatest extent is arranged, the MIPI decoding chips 8 can be according to
The area of two support plates 6 around respective center rotate 90 certain angles, such as rotation 45 °, 90 ° etc., by input/output module 7 with
8 rational space layout of MIPI decoding chips can save space, reduce the volume of entire component to greatest extent.And it is fully sharp
With the front and the back side of the second support plate 6 so that entire component further decreases.
In another optional embodiment, with the above embodiment difference lies in a metallic support 1 can be arranged, cover
It is connected to the outside of pedestal 202, and image-forming assembly 2 is integrally fastened on the second support plate 6, using metallic support 1 so that imaging group
Part 2 is more firm, and plays the purpose of protection image-forming assembly 2.Its good heat conductivity of the holder of metal material can ensure to be imaged
Welding or the fixed mode of limit hole can be used in the fixed form of the working environment of component 2, metallic support 1 and the second support plate 6
Deng.Stent foot can be directly fixedly welded on the second support plate 6, or corresponding location hole is arranged to position on the second support plate 6.
As shown in figure 4, being equipped with through-hole at the top of the bracket shell, passed through for the boss 202 of pedestal.The metallic support 1 can be with
The feature of error-proof structure is set, facilitates installation to position, prevents setup error, error-proof structure feature from can be set in the bracket shell
Protrusion either recess or notch etc. are set, is such as equipped with lug, 1 corresponding position of metallic support in the lateral wall of the boss 202
Equipped with notch, lug is limited in the indentation, there of metallic support 1.
In another preferred embodiment, the image-forming assembly 2 in the above embodiment and the second support plate 6 can pass through plate
Connector for substrate 3 is connected, board to board connector 3 and the interface of image-forming assembly 2 are mutually matched, are realized by board to board connector 3
Image-forming assembly 2 and the decoding chip 8 of configuration MIPI agreements carry out signal communication, and communication performance is good, and distorted signals is small, can improve
The transmission quality of image data.In practical operation, the quantity of 3 pin of board to board connector can be selected 20 or more than 20.
In another preferred embodiment, the first support plate 203 and the second support plate 6 of the above embodiment can be flexible electrical
Road plate or hard circuit board.Using flexible PCB, material is slim and graceful, can meet different installation needs；Using rigid circuit
Plate, stability is more preferably.
The present invention also provides a kind of bar code reading engines for obtaining image data, including image-forming module, configuration MIPI
The decoder module of agreement aims at light source 4, lighting source 5 and trigger module, and image-forming module is integrally formed, including：Lens group connects
Receive the light reflected by target area；Integrated global electronic shutter image sensor array, receives the light of lens group reflection, passes
Send image pixel to decoder module；Trigger module and decoder module communicate to connect, decoder module and image-forming module, aim at light source,
Lighting source is electrically connected.Control instruction control decoder module is sent by trigger module and carries out startup work, control aims at light source, shines
Mingguang City source start illuminate or aim at work, control image-forming module receive optical signal generate electric signal, and be transferred to decoder module into
Row attempts decoding, can be by wired or wirelessly communicated between trigger module and decoder module.In the implementation
In mode, the image-forming assembly 2 data used to capture images, such as captured paper document, packaging body case, institute on machine surface
The data symbols such as one-dimension code, the Quick Response Code of adherency or printing.The mode of the capture can be continuous capturing or high shock capturing.
The image-forming assembly 2 may include the lens group for receiving the light reflected by target area and an integrated global electronic shutter
The light that image sensor array 204 is used to receive lens group reflection transmits image pixel to decoder module.The imaging group
The technique of integrated molding can be used in the lens group of part 2 and integrated global electronic shutter image sensor array 204, to make
The quality of product is more preferable, and performance is more preferable, and reduces the volume of whole part.The integrated global electronic shutter imaging sensor
MT9M021, MT9M031 of Aptina can be used in array 204, can expose multiple images pixel simultaneously in same exposure cycle,
So as to acquire the bar code image being more clear；The integrated global electronic shutter image sensor array 204 also can be used
CCD or CMOS etc..The bar code reading engine decoder module for being used to obtain image data has the function of MIPI, using MIPI
Communications protocol can extend the communication function of the bar code reading engine, keep the hardware compatibility performance more preferable.In present embodiment, match
The decoder module for setting MIPI agreements can be used any one following mode and realize, include but not limited to have MIPI functions special
Integrated circuit, special decoding chip, fpga chip can also use microprocessor, digital signal processing chip and microcontroller
The modules such as unit and module made of its peripheral circuit set etc..
At least one aim at light source 4 at least a lighting source 5 is arranged in around MIPI decoder modules, aiming light source 4 exist
Target area forms the naked eyes visible light spot of geometry, which can be used the naked eyes such as feux rouges, green light can be notable
The light of identification.Also it can arrange that patch type or pinned can be used in lighting source 5, lighting source 5 in the surrounding of image-forming module,
It can be LED light etc..The size of the angle of divergence of lighting source 5 can be set according to the demand of actual use, be most to cover field range
Good selection.Preferred lighting source 5 can also be that the LED light source with ball cover has with optically focused ball cover or without optically focused ball cover
The smaller angle of divergence, is conducive to long distance illumination, is conducive to the big lighting apparatus of field of view angle without the lighting source 5 of ball cover.
As described above, trigger module is used to control the work of decoder module and image-forming module so that image-forming module can
The continuous exposure multiple images pixel within an exposure period, and image pixel is sent to MIPI decoder modules and is decoded place
Reason, trigger module is additionally operable to control aiming light source 4 and lighting source 5 is actuated for aiming, light filling, illumination etc..It is preferred one
In embodiment, the trigger module includes control button and control module, the control button link control module, the control
Molding block is electrically connected with image-forming module, aiming light source 4, lighting source 5, MIPI decoder modules.
The embodiment of bar code reading engine of the upper only present invention for obtaining image data, is not intended to limit this
The scope of the claims of invention, it is every using equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, or
Other related technical areas directly or indirectly are used in, are included within the scope of the present invention.
Claims (10)
1. a kind of bar code reading engine for obtaining image data, it is characterised in that：Including image-forming assembly, MIPI agreements are configured
Decoding chip, aim at light source, lighting source and input/output module；The image-forming assembly, the decoding core for configuring MIPI agreements
Piece aims at light source, lighting source, the second support plate and input/output module communication connection, and the input/output module and outside are logical
Letter；
Wherein：
The image-forming assembly is integrally formed, including an integrated global electronic shutter image sensor array and lens, the first support plate,
The pedestal of a through-hole is inside set, in the through-hole of pedestal, integrated global electronic shutter image sensor array is fixed on lens packages
On first support plate, pedestal is carried on the first support plate and encapsulates integrated image sensor array；
Image-forming assembly is fixed on the second support plate front, aims at light source and lighting source is arranged in around image-forming assembly；Second support plate
Back side fixed configurations MIPI agreements decoding chip；
Input/output module is fixed on the front or the back side of the second support plate；
The decoding chip of configuration MIPI agreements is connected on D-PHY M-PHY physical layers, and D-PHY is synchronized using 1 pair of source
Differential clocks and 1~4 pair of differential data line carry out data transmission；The data transmission of D-PHY uses DDR modes, the object of D-PHY
It manages layer and supports HS patterns and LP patterns, Low Voltage Differential Signal is used under HS patterns, single-ended signal is used under LP patterns.
2. the bar code reading engine according to claim 1 for obtaining image data, it is characterised in that：It further include a gold medal
Belong to holder, is socketed on the outside of pedestal, and image-forming assembly is fixed on the second support plate.
3. the bar code reading engine according to claim 2 for obtaining image data, it is characterised in that：
Image-forming assembly is connect with the second support plate by board to board connector.
4. the bar code reading engine according to claim 3 for obtaining image data, it is characterised in that：The illumination light
Source is located at the homonymy or heteropleural of image-forming assembly with light source is aimed at.
5. being used to obtain the bar code reading engine of image data according to claim 1-4 any one of them, it is characterised in that：Institute
The wavelength for stating lighting source is 380-750nm.
6. being used to obtain the bar code reading engine of image data according to claim 1-4 any one of them, it is characterised in that：Institute
The angle of divergence for aiming at light source is stated more than or equal to 15 °.
7. being used to obtain the bar code reading engine of image data according to claim 1-4 any one of them, it is characterised in that：Institute
State the first support plate, the second support plate is flexible PCB or hard circuit board.
8. the bar code reading engine according to claim 5 for obtaining image data, it is characterised in that：The lens are
Lens combination, including：Positive lens is combined with negative lens, double glued microscope groups are closed, positive lens is combined with cemented doublet, double glued mirrors
It is combined with positive lens or two positive lens is combined with negative lens.
9. a kind of bar code reading engine for obtaining image data, it is characterised in that：Including image-forming module, configuration MIPI agreements
Decoder module, aim at light source, lighting source and trigger module；
Image-forming module is integrally formed, including：Lens group receives the light reflected by target area；Integrated global electronic shutter figure
As sensor array, the light of lens group reflection, transmission image pixel to decoder module are received；
Trigger module is communicated to connect with decoder module, and decoder module is electrically connected with image-forming module, aiming light source, lighting source；
The chip of configuration MIPI agreements is connected on D-PHY M-PHY physical layers, and D-PHY uses the difference that 1 pair of source synchronizes
Clock and 1~4 pair of differential data line carry out data transmission；The data transmission of D-PHY uses DDR modes, the physical layer of D-PHY
It supports HS patterns and LP patterns, Low Voltage Differential Signal is used under HS patterns, single-ended signal is used under LP patterns.
10. the bar code reading engine according to claim 9 for obtaining image data, it is characterised in that：The triggering
Module includes control button and control module, the control button link control module, and the control module and image-forming module are taken aim at
Quasi-optical source, lighting source, decoder module electrical connection.
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| CN105205432A (en) * | 2015-09-22 | 2015-12-30 | 苏州卓越金码电子科技有限公司 | Extension input and output device for code reader |
| CN109886260B (en) * | 2019-02-27 | 2024-02-02 | 上海千映智能科技有限公司 | Intelligent code reader |
| CN111581997B (en) * | 2020-04-03 | 2022-04-19 | 福建新大陆自动识别技术有限公司 | Small-size bar code decoding device |
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| CN102447847A (en) * | 2011-11-02 | 2012-05-09 | 北京思比科微电子技术股份有限公司 | Multi-image sensor image processing device with MIPI (Mobile Industry Processor Interface) and method |
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| CN103049727A (en) * | 2012-12-11 | 2013-04-17 | 福建新大陆自动识别技术有限公司 | Bar code recognizing, reading and decoding module and handheld electronic device |
| CN204302991U (en) * | 2014-12-24 | 2015-04-29 | 希姆通信息技术（上海）有限公司 | The scan-data conversion equipment of Quick Response Code and mobile terminal |
| CN204856516U (en) * | 2015-05-21 | 2015-12-09 | 福建新大陆电脑股份有限公司 | A bar code recognition engine for obtaining image data |
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