CN109800613A - A kind of bar code recognizing apparatus - Google Patents
A kind of bar code recognizing apparatus Download PDFInfo
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- CN109800613A CN109800613A CN201910097881.6A CN201910097881A CN109800613A CN 109800613 A CN109800613 A CN 109800613A CN 201910097881 A CN201910097881 A CN 201910097881A CN 109800613 A CN109800613 A CN 109800613A
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- bar code
- viewfinder
- groove profile
- photographing module
- recognizing apparatus
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Abstract
The present invention relates to a kind of bar code recognizing apparatus, it further include groove profile viewfinder including a shell and the camera unit and circuit board that are set in the housing, the front of the shell is provided with a hole, the groove profile viewfinder is set in the hole, the depth value D of the groove profile viewfinder1>=10mm, the camera unit includes at least two photographing modules, each photographing module includes camera lens and imaging sensor, each camera lens is each attached to the bottom of the viewfinder, each camera lens acquires bar code image by the window of groove profile viewfinder, each described image sensor receives the optical signal by camera lens incidence, and the processor for converting optical signals to be sent on the circuit board after electric signal is decoded, and obtains bar code information.A kind of bar code recognizing apparatus of the present invention, settable multiple photographing modules can meet the barcode scanning demand of various ways under different lightness environment simultaneously, while by setting viewfinder, limiting the incidence angle of veiling glare, improving the clarity of bar code image.
Description
Technical field
The present invention relates to a kind of bar code recognizing apparatus, belong to bar code identification field.
Background technique
The patent of invention " dual camera scanner and its scan method " of Publication No. CN107111737A, it discloses sweep
It retouches and is provided with nearly burnt camera and remote burnt camera, the field depth of expanded sweep rifle in rifle, but it must pass through man-hour manually hand-held
Scanner carries out barcode scanning, and the angle that scanner is manually adjusted during barcode scanning makes camera capture clearly bar code image,
It is unable to satisfy unmanned barcode scanning demand using a kind of active barcode scanning mode.The bar code recognizing apparatus of existing passive barcode scanning
(barcode recognition equipment is fixed) is mostly single camera, and by user's hand-held mobile terminal, by the knowledge on mobile terminal
Closely close to or with closer distance close to the camera lens of bar code recognizing apparatus, multi-angle adjusts bar code, could distinguish item for other code
Code.The bar code recognizing apparatus of existing passive barcode scanning formula is merely able to realize short distance barcode scanning, in remote barcode scanning, incident camera lens
Light in contain many external environment veiling glares, for example, for showing specular light on the mobile terminal of identification code, from
The astigmatism of multi-angle in right light, the lighting source etc. of other external high brightness, these veiling glares capture bar code figure to imaging sensor
As causing serious interference, so that picture noise is excessively high in captured image, bar code recognizing apparatus can not normally distinguish decoding,
As shown in Figure 1, the bar code image schematic diagram captured when bar code at existing single-lens bar code reader scans 60cm, figure
Middle bar code is interfered by strong light, can not distinguish decoding.The existing recognizing apparatus applied to passive barcode scanning not only cannot achieve long distance
From barcode scanning decoding, and it not can be implemented simultaneously short distance and remote energy barcode scanning and decode.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of bar code recognizing apparatus, and multiple camera shooting moulds can be set
Block meets the barcode scanning demand of various ways and can obtain clear bar code image in various environment, while being found a view by setting
Window limits the incidence angle of external environment veiling glare, greatly reduces interference of the external environment veiling glare to imaging sensor, improves bar code
The clarity of image.
Technical scheme is as follows:
A kind of bar code recognizing apparatus, it is described including shell, groove profile viewfinder and the camera unit and circuit board being set in the housing
The front of shell is provided with a hole, and the groove profile viewfinder is set in the hole, the depth value D of the groove profile viewfinder1≥
10mm, the camera unit include at least two photographing modules, and each photographing module includes camera lens and imaging sensor, respectively
The camera lens is each attached to the bottom of the viewfinder, and each camera lens acquires bar code image by the window of groove profile viewfinder,
Each described image sensor receives the optical signal by camera lens incidence, and is sent to the circuit after converting optical signals to electric signal
Processor on plate is decoded, and obtains bar code information.
More preferably, the camera unit includes at least one nearly burnt photographing module and at least one remote burnt photographing module.
More preferably, nearly burnt photographing module and remote burnt photographing module be not in same level, and remote burnt photographing module is set to
The rear of the nearly burnt photographing module.
More preferably, the camera unit is at least two remote burnt photographing modules, by processor to each remote burnt photographing module
The different time for exposure is set, makes camera unit that can obtain clear bar code image under different lightness environment.
More preferably, the interface of each photographing module is MIPI interface and/or parallel port, by the interface by the bar code of capture
Image transmitting is to the processor.
More preferably, the side wall setting of the groove profile viewfinder is multistage rises and falls.
More preferably, described to rise and fall as multistage ladder, spiral step or the multistage wave being obliquely installed.
More preferably, the window of the groove profile viewfinder is rectangle, ellipse or circle.
More preferably, lamp is provided on the circuit board, the front of the shell is light penetrating panel, and the light of the lamp passes through
Light penetrating panel to outer transmissive, the light penetrating panel be removably attached on the shell or the light penetrating panel with it is described
Shell is integrally formed.
More preferably, between the photosurface of imaging sensor and the window of groove profile viewfinder of the remote burnt photographing module away from
From D2In the photosurface and camera lens of the imaging sensor of >=20mm and/or the remote burnt photographing module between outermost eyeglass away from
From D3≥5.5mm。
More preferably, the camera unit is made of two photographing modules, and the window area S of the groove profile viewfinder≤
350mm2
More preferably, the camera unit is made of two photographing modules, and the window of the viewfinder is rectangle, Aspect Ratio model
Enclose be 1 ~ 2.5 or the viewfinder be ellipse, the proportional region of long axis and short axle is 1 ~ 2.5.
More preferably, the groove profile viewfinder is fixedly connected by bracket with the inner sidewall of shell, the groove profile viewfinder
Window is concordant with the hole；Or the front of the groove profile viewfinder and the shell connect, the window of the groove profile viewfinder and this
Hole is concordant；Or the front of the groove profile viewfinder and the shell connect, and described in the window protrusion of groove profile viewfinder is set to
Shell upper front.
The invention has the following beneficial effects:
1, a kind of bar code recognizing apparatus of the present invention meets a variety of barcode scanning demands, and be provided with depth by the way that multiple photographing modules are arranged
The viewfinder of degree limits the incidence angle that external environment veiling glare enters photographing module, greatly reduces extraneous multi-angle light to catching
The interference of bar code image is obtained, and each photographing module includes imaging sensor, realizes multiple photographing modules barcode scanning simultaneously, obtain more
A bar code image, raising are decoded into power；
2, a kind of bar code recognizing apparatus of the present invention is provided with remote burnt photographing module and nearly burnt photographing module, realizes that far and near distance is equal
It can quickly decode, and by adjusting the position of remote burnt photographing module and nearly burnt photographing module, can satisfy the window of viewfinder
The field angle requirement of photographing module；
3, a kind of bar code recognizing apparatus of the present invention, can also be arranged the time for exposure of each photographing module on a processor, thus real
Clear bar code image can be captured under existing different brightness conditions；
4, a kind of bar code recognizing apparatus of the present invention, multiple photographing modules connect the processing of the same image algorithm and decoding algorithm
Device, the interface of photographing module can be MIPI interface, be also possible to parallel port, and application is more flexible；
5, a kind of bar code recognizing apparatus of the present invention is arranged by the side wall in viewfinder and is risen and fallen, and effectively prevent overall emission to sweeping
The interference retouched, and light can be subjected to multi-angle remission, it prevents from forming whole face reflection, reduces veiling glare and bar code image is done
It disturbs, improves bar code image clarity；
6, panel is used light diffusing sheet, and light-emitting component is arranged on circuit boards by a kind of bar code recognizing apparatus of the present invention, is realized
Prompting function；
7, a kind of bar code recognizing apparatus of the present invention limits in remote burnt photographing module between the photosurface and upper opening of imaging sensor
Distance obtain preferable bar code image to reduce the influence photosensitive to imaging sensor of external environment veiling glare；.
8, a kind of bar code recognizing apparatus of the present invention limits the outermost eyeglass of camera lens and imaging sensor sense in remote burnt photographing module
The distance between smooth surface, preferably elimination astigmatism and aberration, improve image quality；
9, a kind of bar code recognizing apparatus of the present invention, by setting the window area of groove profile viewfinder, enhancing stops veiling glare effect；
10, a kind of bar code recognizing apparatus of the present invention, sets rectangle or ellipse and length for window using when two photographing modules
Wide than being 1 ~ 2.5, bar code image effect is best, has not only obtained complete image, but also veiling glare can be avoided to inject mirror to greatest extent
Head improves reading code success rate.
Detailed description of the invention
Fig. 1 is the bar code image schematic diagram that bar code recognizing apparatus captures under sunlight irradiation in the prior art；
A kind of perspective view of bar code recognizing apparatus of Fig. 2 present invention；
Fig. 3 is a kind of front view of bar code recognizing apparatus of the present invention；
Fig. 4 is a kind of explosive view of bar code recognizing apparatus of the present invention；
Fig. 5 is a kind of sectional side elevation along groove profile view-finder length direction of bar code recognizing apparatus of the present invention；
Fig. 6 and Fig. 7 is a kind of sectional side elevation along groove profile view-finder width direction of bar code recognizing apparatus of the present invention；
Fig. 8 is a kind of ladder-like multistage schematic diagram to rise and fall of bar code recognizing apparatus of the present invention；
Fig. 9 is a kind of schematic diagram that the helical form multistage of bar code recognizing apparatus rises and falls of the present invention；
Figure 10 is that veiling glare schematic diagram is reflected in a kind of fluctuating of bar code recognizing apparatus of the present invention；
Figure 11 is the schematic diagram that a kind of shell front of bar code recognizing apparatus of the present invention is light penetrating panel；
Figure 12 is that a kind of groove profile viewfinder of bar code recognizing apparatus of the present invention and shell front are integrally formed and scheme；
A kind of groove profile viewfinder of bar code recognizing apparatus of Figure 13 present invention protrudes the positive schematic diagram of shell；
Figure 14 is a kind of bar code image schematic diagram of the remote burnt photographing module capture of bar code recognizing apparatus of the present invention.
Appended drawing reference indicates in figure are as follows:
1, shell；2, photographing module；3, circuit board；4, groove profile viewfinder；5, bracket；6, radiating piece；11, positive；12, hole；
111, the first cushion；112, the second cushion；21, camera lens；23, imaging sensor；24, optical filter；31, processor；32, lamp；33,
Data transmission interface；41, it rises and falls；42, window；201, nearly burnt photographing module；202, remote burnt camera.
Specific embodiment
It is next in the following with reference to the drawings and specific embodiments that the present invention will be described in detail.
Please see Fig. 2 to Fig. 4, a kind of bar code recognizing apparatus, including a shell 1, groove profile viewfinder 4 and be set to shell 1
Interior camera unit and circuit board 3, the front 11 of the shell 1 are provided with a hole 12, and the groove profile viewfinder 4 is set in the hole
In 12, the depth value D of the groove profile viewfinder 41>=10mm, the camera unit include at least two photographing modules 2, each described
Photographing module 2 includes camera lens 21 and imaging sensor 23, and each camera lens 21 is each attached to the bottom of the viewfinder 4, respectively
Window 42 described in the window 42(that the camera lens 21 passes through groove profile viewfinder 4 is the outermost opening of groove profile viewfinder 4) pick-up slip
Code image, each described image sensor 23 receives the optical signal incident by camera lens 21, and sends out after converting optical signals to electric signal
It send to the processor 31 on the circuit board 3 and is decoded, obtain bar code information.The bar code information can pass through circuit board 3
On data transmission interface 33 externally transmit, module can also externally be wirelessly transferred by wireless communication.There is the groove profile of depth to take
Scape window 4 limits the incident angle of external environment veiling glare, and external environment veiling glare is avoided to cause camera unit capture bar code image
Interference, therefore, when bar code is in compared with distant positions, camera unit remains to capture clearly bar code image.Meanwhile the present invention passes through
At least two photographing modules 2 are set, can satisfy the barcode scanning demand under different condition, make the barcode scanning function of barcode recognition equipment more
It is powerful.
Referring to Fig. 7, more preferably, the depth value D of the groove profile viewfinder 41It is bigger, the energy of the external environment veiling glare of blocking
Power is stronger, is more conducive to camera unit 2 and captures clear bar code image.
In the present embodiment, each photographing module 2 can be identical in camera unit, different according to actual needs can also take the photograph
As 2 combined application of module.When needing to realize that far and near distance can capture clear bar code image, the camera unit are as follows: including
At least one nearly burnt photographing module 201 and at least one remote burnt photographing module 202, for example including a nearly coke photographing module 201, one
Remote coke photographing module 202, or can also be arranged a focal length between nearly burnt photographing module 201 and remote burnt photographing module 202 it
Between photographing module.When needs when also can preferably be imaged at night at a distance, the camera unit includes that at least two remote cokes are taken the photograph
As module 202, the different time for exposure is arranged to each remote burnt photographing module 202 by processor 31, makes camera unit in difference
Clear bar code image can be obtained under lightness environment, for example, setting the time for exposure of one of them remote burnt photographing module 202 to
0X02 ~ 0X15(is about 53.34us-560.07us, and the time for exposure sets according to the characteristic of imaging sensor), pass image
Sensor 23 can capture preferably bar code image on daytime, the time for exposure setting of another remote burnt photographing module 202 0X15 ~
0X35(is about 560.07us-1413.51us), make imaging sensor 23 that can capture preferably bar code image at night；
In addition to this, if also needing to be provided simultaneously with short distance barcode scanning function, nearly burnt photographing module 201 can be combined to combine on this basis
Using.Bar code recognizing apparatus of the present invention not only can quickly distinguish different distances by the multiple combinations configuration to photographing module 2
The bar code of distance can also capture clear bar code image under different lightness environment.
Since the field angle of nearly burnt photographing module 201 and the field angle of remote burnt photographing module 202 be not identical, in order to as far as possible
Ground makes the window 42 of viewfinder 4 and the field angle of each photographing module 2 match, to achieve the purpose that utmostly to stop veiling glare,
Referring to Fig. 5, nearly coke photographing module 201 and remote burnt photographing module 202 are arranged on different level, and due to nearly burnt camera shooting mould
The field angle of block 201 is greater than the field angle of remote burnt photographing module 22, and therefore, remote coke photographing module 202 is located at the nearly burnt camera shooting
The rear of module 201.
Each photographing module 2 makes groove profile find a view there are many arrangement modes of 4 bottom of groove profile viewfinder, but more preferably
The 42 area S of window of window 4 reduces 42 area of window as far as possible while meeting the field angle of each photographing module 2, to reach most
Excellent light blocking effect.For example, each photographing module 2 of 4 bottom of groove profile viewfinder is arranged side by side, referring to Fig. 6, each camera shooting mould
Field angle A≤30 ° that the camera lens 21 of block 2 and the window 42 of groove profile viewfinder 4 are formed in the vertical direction, when each photographing module 2
When focal length difference, can be arranged 21 position of camera lens by front-back staggered, so that A≤30 °.
Referring to Fig. 6, the photosurface of the imaging sensor 23 of the remote burnt photographing module 202 and the window of groove profile viewfinder 4
The distance between mouth 42 D2>=20mm can effectively stop veiling glare, to reduce external environment veiling glare to imaging sensor 23
Photosensitive influence finally takes preferable reading code effect to obtain preferable bar code image.The figure of the remote burnt photographing module 202
As sensor 23 photosurface and camera lens 21 in the distance between outermost eyeglass D3>=5.5mm can preferably eliminate picture
Scattered and aberration improves image quality.The camera lens 21 of the remote burnt photographing module 202 selects three pieces ~ six piece optical mirror slip, can be compared with
Good elimination aberration improves image quality.One optical filter 24 can also be set in the camera lens 21, and the optical filter 24 is fixed on
On most inner side eyeglass.The band-pass wavelength of the optical filter 24 is 400 ~ 700nm, and underrange wavelength percent of pass is greater than 90%, band logical filter
Mating plate 24 filters out major part and is less than 400nm and can select greater than the light of 700nm or the optical filter 24 greater than 650nm sections
Common optical filter only can preferably eliminate astigmatism and color difference, improve image quality.In the camera lens 21 on outermost eyeglass
Anti-reflection film can be plated, the light transmittance of visible light i.e. 400 ~ 700nm light is made to be greater than 90%.The front end of the camera lens 21 is set to
In the groove profile viewfinder 4, it is possible to prevente effectively from veiling glare injects camera lens 21, imaging and reading code effect are influenced.
The interface of each photographing module 2 is MIPI interface and/or parallel port, which can pass through connector and circuit board
3 are detachably connected, and the connector includes FPC, fastener etc..The bar code image that each photographing module 2 captures is transmitted to the place
Manage device 31.The processor 31 can be handled each bar code image using the same image algorithm and decoding algorithm, simultaneously
Can also be by the way that condition be arranged, the decoding result of the one of bar code image of optimum selecting is externally exported as bar code information.Example
Such as, simply, in multiple bar code images, as long as there is a bar code image successfully decoded, cancellation decoding order is sent to other
Bar code image is externally exported using the bar code image of successfully decoded at first as bar code information.Processor 31 decodes multiple bar code figures
The mode of picture is not limited only to this, for solving the equal energy of technical solution of multiple bar code image decoding problems disclosed in the prior art
Applied in the present invention.Described image sensor 23 can be roller shutter exposure cmos image sensor, be also possible to global exposure
Cmos image sensor can also select CCD imaging sensor 23.During the work time due to imaging sensor 23, it can send out
Heat improves the stability for the treatment of process and hence it is also possible to which radiating piece 6 is arranged in shell 1.For example, referring to Fig. 6, the figure
As radiating piece 6 is arranged between the non-photo-sensing face of sensor 23 and the inner bottom surface of the shell 1, preferably, the radiating piece 6 is stone
Black alkene patch or silicone grease patch.
The multistage fluctuating 41 of side wall setting of the groove profile viewfinder 4.It is described rise and fall 41 for multistage ladder (as shown in Figure 8),
Spiral step (as shown in Figure 9) or the multistage wave being obliquely installed.Utilize the multistage in the depth and side wall of groove profile viewfinder 4
Fluctuating 41, for entering the light of groove profile viewfinder 4, is incident on side wall while limiting external environment veiling glare incidence angle
Light through fluctuating 41 multistage multi-angle remission, further weaken incident strong light, and can be avoided in incident light in side wall
Upper formation whole face reflection, further decreases interference of the external environment veiling glare to photographing module 2, bar code figure when improving remote barcode scanning
The clarity of picture.Multistage rise and fall shown in figure 41 is arranged for full side wall, and in actual use, multistage rises and falls 41 can be with
Be provided only in partial sidewall as shown in figure 3, but its anti-light disturbance ability it is strong not as good as the setting of full side wall.In this implementation it is listed this
It is more excellent that several ways reduce external environment light disturbance ability, but can play the shape and distribution of the fluctuating 41 of phase same-action
Mode is not limited to this.Referring to Fig. 10, light a, light b, light c and light d from external environment are incident on groove profile
On the side wall of viewfinder 4, it is useless veiling glare, is effectively reflected in fluctuating 41, weakens veiling glare and photographing module 2 is captured
It is interfered caused by bar code image.
The window 42 of the groove profile viewfinder 4 can be rectangle, ellipse or circle.What conventional images sensor 23 generated
The resolution ratio of image is generally 16:9 or 16:10 or 4:3, therefore, sets the Aspect Ratio of window 42 to and imaging sensor
The Aspect Ratio of 23 imagings is identical or is close, and bar code image effect is best, has not only obtained complete image at this time, but also can be maximum
Limit avoids veiling glare from injecting camera lens 21, and veiling glare is avoided to impact imaging and decoding effect to the maximum extent.When camera shooting is single
When member is made of two photographing modules 2, more preferably, the window 42 of the groove profile viewfinder 4 is rectangle, and Aspect Ratio range is
1 ~ 2.5 or the groove profile viewfinder 4 be ellipse, the proportional region of long axis and short axle is 1 ~ 2.5.
The area S of window 42 is bigger, stops the effect of external environment veiling glare poorer, therefore, the area S of window 42 is smaller
More be conducive to be promoted the clarity of bar code image, more preferably, when the camera unit includes two photographing modules 2, window 42
Area S≤350mm2, more preferably, 42 area S≤300mm of window2。
When needing to remind user's barcode scanning state and as a result, or set in order to allow user to be more easily observable bar code reading
Standby, more the most commonly used is light prompts.In the present embodiment, Figure 11 is please referred to, the front 11 of the shell 1 can select light transmission
Panel, is provided with lamp 32 on the circuit board 3, and the light of the lamp 32 is by light penetrating panel to outer transmissive, the transparent surface
Plate is removably attached on the shell 1 or the light penetrating panel is integrally formed with the shell 1.Such as pass through screwed lock
It is attached on shell 1 or light penetrating panel is fixed on shell 1 by the first cushion 111 with viscose.The light penetrating panel is general
Light diffusing sheet or transparency glass plate etc. can be selected.As shown in figure 9, for enhancing lighting effects, the front 11 of the shell 1 can be with
The LED lamp panel for being provided with multiple LED light is selected, LED lamp panel is locked on shell 1, the circuit is electrically connected by connector
Plate 3, the connector include FPC, fastener etc..
The connection type of the groove profile viewfinder 4 and shell 1 has the groove profile of depth by a variety of, but no matter using any
Viewfinder 4 can play the role of stopping external environment veiling glare.Fig. 3 and Fig. 4 are please referred to, the groove profile viewfinder 4 passes through branch
Frame 5 is fixedly connected with the inner sidewall of shell 1, and the window 42 of the groove profile viewfinder 4 is concordant with the hole 12；As shown in figure 12, or
The groove profile viewfinder 4 connect (being detachably connected or being integrally formed is implementable solution), institute with the front 11 of the shell 1
The window 42 for stating groove profile viewfinder 4 is concordant with the hole 12；As shown in figure 13 or the groove profile viewfinder 4 and the shell 1 just
Face 11 connects (being detachably connected or being integrally formed is implementable solution), and the protrusion of window 42 of groove profile viewfinder 4 is set to
1 front of shell, 11 top.As shown in figure 4, if there are when gap between window 42 and hole 12, can window 42 and hole 12 it
Between the second cushion 112 is set, play dust-proof, light leakage, preventing stray light effect.
It as shown in figure 14, is bar code recognizing apparatus of the present invention far burnt photographing module when a code distance is 70cm or so
202 images taken clap it with existing fixed bar code recognizing apparatus under identical external environment and distance condition
The image (as shown in Figure 1) taken the photograph is compared, and when the remote barcode scanning of bar code recognizing apparatus of the present invention, the bar code image captured is clear
Bar code image of the degree much higher than the capture of existing bar code recognizing apparatus.
A kind of bar code recognizing apparatus of the present invention, the groove profile viewfinder 4 for having depth by one effectively stop external environment miscellaneous
Light reduces veiling glare and interferes to caused by the capture bar code image of imaging sensor 23, greatly improves imaging effect, improve barcode scanning decoding
Success rate, in combination with more than two photographing modules 2, clear item can be captured by realizing under different distance, different lightness environment
Code image, keeps the barcode scanning of barcode recognition equipment with better function.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (13)
1. a kind of bar code recognizing apparatus, special including shell (1) and the camera unit and circuit board (3) that are set in shell (1)
Sign is: further including groove profile viewfinder (4), the front (11) of the shell (1) is provided with a hole (12), the groove profile viewfinder
(4) it is set in the hole (12), the depth value D of the groove profile viewfinder (4)1>=10mm, the camera unit include at least two
A photographing module (2), each photographing module (2) include camera lens (21) and imaging sensor (23), each camera lens (21)
It is each attached to the bottom of the viewfinder (4), each camera lens (21) acquires bar code by the window (42) of groove profile viewfinder (4)
Image, each described image sensor (23) receive the optical signal by camera lens (21) incidence, and after converting optical signals to electric signal
The processor (31) being sent on the circuit board (3) is decoded, and obtains bar code information.
2. a kind of bar code recognizing apparatus according to claim 1, it is characterised in that: the camera unit includes at least one close
Burnt photographing module (201) and at least one remote burnt photographing module (202).
3. a kind of bar code recognizing apparatus according to claim 2, it is characterised in that: nearly coke photographing module (201) and remote coke
Photographing module (202) is not in same level, and remote burnt photographing module (202) is set to the nearly burnt photographing module (201)
Rear.
4. a kind of bar code recognizing apparatus according to claim 1, it is characterised in that: the camera unit is at least two remote
Burnt photographing module (202) is arranged the different time for exposure to each remote burnt photographing module (202) by processor (31), makes to image
Unit can obtain clear bar code image under different lightness environment.
5. a kind of bar code recognizing apparatus according to claim 1, it is characterised in that: the interface of each photographing module (2)
For MIPI interface and/or parallel port, the bar code image of capture is transmitted to by the processor (31) by the interface.
6. a kind of bar code recognizing apparatus according to claim 1, it is characterised in that: the side wall of the groove profile viewfinder (4)
Setting is multistage to rise and fall (41).
7. a kind of bar code recognizing apparatus according to claim 6, it is characterised in that: the fluctuating (41) be multistage ladder,
Spiral step or the multistage wave being obliquely installed.
8. a kind of bar code recognizing apparatus according to claim 1, it is characterised in that: the window of the groove profile viewfinder (4)
It (42) is rectangle, ellipse or circle.
9. a kind of bar code recognizing apparatus according to claim 1, it is characterised in that: be provided with lamp on the circuit board (3)
(32), the front (11) of the shell (1) is light penetrating panel, the light of the lamp (32) by light penetrating panel to outer transmissive,
The light penetrating panel is removably attached on the shell (1) or the light penetrating panel is integrally formed with the shell (1).
10. a kind of bar code recognizing apparatus according to claim 2 or 3, it is characterised in that: the remote burnt photographing module
(202) the distance between the photosurface of imaging sensor (23) and the window (42) of groove profile viewfinder (4) D2>=20mm and/or
The distance between outermost eyeglass in the photosurface of the imaging sensor (23) of the remote burnt photographing module (202) and camera lens (21)
D3≥5.5mm。
11. a kind of bar code recognizing apparatus according to claim 1, it is characterised in that: the camera unit is imaged by two
Module (2) composition, window (42) area S≤350mm of the groove profile viewfinder (4)2。
12. a kind of bar code recognizing apparatus according to claim 1, it is characterised in that: the camera unit is imaged by two
Module (2) composition, the window of the viewfinder (4) are rectangle, Aspect Ratio range be 1 ~ 2.5 or the viewfinder (4) be
The proportional region of ellipse, long axis and short axle is 1 ~ 2.5.
13. a kind of bar code recognizing apparatus according to claim 1, it is characterised in that: the groove profile viewfinder (4) passes through branch
Frame (5) is fixedly connected with the inner sidewall of shell (1), and the window (42) of the groove profile viewfinder (4) is concordant with hole (12)；Or institute
It states groove profile viewfinder (4) to connect with the front (11) of the shell (1), the window (42) of the groove profile viewfinder (4) and the hole
(12) concordant；Or the groove profile viewfinder (4) connect with the front (11) of the shell (1), and the window of groove profile viewfinder (4)
(42) protrusion is set to above the shell (1) positive (11).
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| CN201910097881.6A CN109800613A (en) | 2019-01-31 | 2019-01-31 | A kind of bar code recognizing apparatus |
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| CN201910097881.6A CN109800613A (en) | 2019-01-31 | 2019-01-31 | A kind of bar code recognizing apparatus |
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| CN201910097881.6A Pending CN109800613A (en) | 2019-01-31 | 2019-01-31 | A kind of bar code recognizing apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113887257A (en) * | 2021-09-15 | 2022-01-04 | 福建新大陆自动识别技术有限公司 | Double-camera bar code reading module and bar code reading method |
| CN114239621A (en) * | 2021-12-16 | 2022-03-25 | 福建新大陆自动识别技术有限公司 | Miniature bar code collection system with can dismantle subassembly |
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| CN114239621B (en) * | 2021-12-16 | 2023-11-28 | 福建新大陆自动识别技术有限公司 | Miniature bar code acquisition device with detachable assembly |
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