CN104298949B - One-dimensional bar code recognition method - Google Patents
One-dimensional bar code recognition method Download PDFInfo
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- CN104298949B CN104298949B CN201410481666.3A CN201410481666A CN104298949B CN 104298949 B CN104298949 B CN 104298949B CN 201410481666 A CN201410481666 A CN 201410481666A CN 104298949 B CN104298949 B CN 104298949B
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- bar code
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- image sensor
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Abstract
A one-dimensional bar code recognition method comprises a recognition engine for recognizing one-dimensional bar codes, wherein the engine comprises an integrated shell, the integrated shell has an optical imagining area used for reflecting an imaging optical path, an image sensor circuit board is arranged on the side face of the integrated shell, a reflecting mirror is used for receiving the imaging optical path, the size of the bar code recognition engine is reduced, and thus the influence of spurious signals can be avoided, the signal-to-noise ratio of measurement is increased, and the stability of measurement is improved. Bonding pads are arranged on a decoding circuit board and the image sensor circuit board, and the decoding circuit board is fixedly connected with the image sensor circuit board through welding spots. When the decoding circuit board receives a trigger instruction for recognizing one-dimensional bar code, an image sensor acquires the image of the one-dimensional bar code and transmits the image to the decoding circuit board so that the image can be decoded and output.
Description
Technical field
The present invention relates to a kind of optics reading method, relates in particular to bar code reading method.
Background technology
Bar code (abbreviation bar code) can be divided into bar code and two-dimensional bar code, and bar code is regularly arranged by one group
The mark that bar, empty and corresponding character are constituted, " bar " refers to the part relatively low to light reflectance, and " sky " refers to light reflectance
Higher part, these information certain with the data representation of empty composition.Two-dimensional bar code is by one with specific geometric figure
Of new generation bar code of the set pattern rule in the chequered with black and white rectangle square formation record data symbolic information of plane (on two-dimensional directional) distribution
Technology；Two-dimensional bar code can be divided into two dimensional barcode stack type and matrix two-dimensional barcode.Be in two dimensional barcode stack type form by
The bar code stacking of multirow cutting back is formed (such as PDF417 bar codes)；Matrix two-dimensional barcode is constituted with a matrix type, in square
Binary one is represented with " point " on battle array respective element position, binary zero is represented with " sky ", by " point " and the arrangement group of " sky "
Into code (such as QR codes).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.The development of barcode technology is very fast, and the development of barcode technology is right
Corresponding bar code reading technology is put forward higher requirement.Bar code reading engine (also referred to as bar code reading module, barcode scanner
Deng) used as an important composition structure of reading bar code, its cost, size and assembling difficulty directly affect whole recognizing apparatus.
Chinese patent CN201311641Y discloses a kind of Minimized CCD bar code scanner.The invention of the patent document
Purpose is to provide a kind of bar code reader of miniaturization.The bar code scanner includes bottom, the shell of upper lid composition, is arranged on
Optically focused camera lens and circuit board in barcode scanner, equipped with CCD inductors and two LEDs on circuit board, in optically focused camera lens
Double lens astigmatism is housed on front shell end face.Shell combinatorial compound by the way of upper and lower covers assembling, increased assembling step
Suddenly, while also reducing the stability of shell structure to a certain extent.Due to strip CCD length it is longer, in strip ccd image
Sensor institute integrated two LEDs on circuit boards, certainly will increased the size of bar code reader.
The content of the invention
For this purpose, the technical problem to be solved be in prior art bar code reading clip surface assembling step play compared with
Many and structural stability is not enough, and reading engine size is still relatively large.
To solve above-mentioned technical problem, the technical scheme for being adopted of the present invention：
Bar code reading method, including：
The reading engine of recognition bar code；The reading engine includes：
Integral housing (1)；The integral housing (1) is obtained using light-proof material, is further included：
Bottom panel (11)；
Front panel (12)；The front panel (12) is provided with camera lens (121)；
First side plate (13)；The first side plate is along front panel (12) along the bottom panel (11) and front panel (12)
Side edge arrange, the first side plate (13) is provided with opening (131), with the image biography on the outside of first side plate
The imageing sensor shape of sensor circuit board (3) is coincide；
Backplate (15)；It is relative with the front panel (12)；
Optical imagery district (16)；The optical imagery district (16) is by the backplate (15) and including the camera lens (121)
Front panel (12) and the first side plate (13) and be arranged between first side plate (13) and second side plate (14)
Third side panel (132) and along above-mentioned panel lower edge arrange below plate (163) surrounded；The optical imagery district
(16) speculum (162) is provided with, for the bar code image opening for obtaining on the camera lens (121)
(131) described image sensor for fitting in the opening (131) is allowed to capture；
Second side plate (14)；The first side plate is along front panel (12) along the bottom panel (11) and front panel (12)
Opposite side edge arrange；
Decoding circuit board (2)；The decoding circuit board (2) positioned at the top of the integral housing (1), with the one
Sandwich type element (1) is detachably connected；The decoding circuit board edge is provided with pad, described image sensor circuit board (3)
Top is provided with pad, and the pad of described image sensor circuit board (3) is corresponding with the pad of the decoding circuit board (2),
Described image sensor circuit board (3) is connected with the decoding circuit board (2) by solder joint；
The bar code reading method is comprised the following steps：
S1：The decoding deck (2) receives the triggering command of recognition bar code；
S2：The camera lens (121) obtains the continuous bar code picture frame of capture and transmits to described image sensor；
S3：The continuous bar code picture frame that described image sensor is obtained is transmitted to the decoding electricity by the solder joint
Road plate (2)；
S4：The decoding circuit board (2) decodes one by one to the bar code picture frame；If successfully decoded output bars
Code information；The decoding of next frame barcode image frame is carried out if decoding failure.
Optical imagery district (16) top is connected with shadow shield (161), and the shadow shield (161) is detachable.
The front panel (12) is provided with lighting window (122) above or below the camera lens (121), in the mirror
The side of head (121) is provided with aiming window (123), and the lighting window is provided with the transparent material that laminating aims at window shape
Matter；
The integral housing (1) also includes：
Light storage area (17) is aimed at, the aiming light storage area is located at the second side (14) and the 3rd side
Between panel (132)；The size for aiming at light storage area (17) matches or slightly larger than aiming with the size for aiming at light source
Light source；Cylindrical transparent optically focused is provided between aiming light storage area (17) front and aiming window (123)
Mirror (171)；
Lighting area (18)；The lighting area (18) is the illuminating window above or below the optical imagery district
The void region at the horizontal rear of mouth (122), the width of the lighting area is slightly larger than the width of lighting source；
The bar code reading engine also includes：
Light source circuit board (4)；Further include：
Aim at light source；The light source that aims at is a laser instrument in regular geometric shapes；
Lighting source；The lighting source is infrared light-emitting diode, and the lighting source is included at least described in one piece
Infrared light-emitting diode.
The pad locations of light source circuit board (4) top correspondence decoding circuit board (2) are provided with pad, and described
The pad of decoding circuit board (2) is connected by solder joint.
The elongated poroid lens of the camera lens.
Described image sensor is strip type ccd image sensor.
The bottom panel (11) is provided with more than one screw hole.
The integral housing (1) is obtained using black ABS plastic material.
The above-mentioned technical proposal of the present invention has compared to existing technology advantages below.
1. the reading engine of the bar code reading method of the present invention, including recognition bar code, the engine includes one
The housing of body formula, the integral housing also optical imagery district with catoptric imaging light path, and by image sensor circuit board
Side is arranged on, imaging optical path is accepted by speculum, reduce the size of bar code reading engine.To avoid the shadow of spurious signal
Ring, improve measurement signal to noise ratio and stability.Pad, decoding circuit are provided with decoding circuit board and image sensor circuit board
Plate is fixedly connected with image sensor circuit board by solder joint, and the decoding deck receives the triggering command of recognition bar code, figure
Decode and export as sensor gathers bar code image and transmits to the decoding deck.
2. the reading engine of the bar code reading method of the present invention has the shadow shield matched with the optical imagery district
To prevent impact of the extraneous light to bar code image.
3. the reading engine of the bar code reading method of the present invention, by lighting source and aiming light source same light is integrated in
On source circuit plate, while the space that lighting area is arranged on saving bar code reading engine above or below the camera lens sets
Meter.The light source circuit board is provided with pad and is fixedly connected by solder joint with decoding circuit board by solder joint, and realize power supply with
The transmission of data-signal.Light source is aimed at using the high LASER Light Source of brightness.
Description of the drawings
In order that present disclosure is more likely to be clearly understood, the specific embodiment below according to the present invention is simultaneously combined
Accompanying drawing, the present invention is further detailed explanation, wherein,
Fig. 1 is the read the flow chart of bar code reading method of the present invention；
Fig. 2 is the front view of bar code reading engine of the present invention；
Fig. 3 is the left view of bar code reading engine of the present invention；
Fig. 4 is that bar code reading engine decoding circuit board of the present invention is illustrated with the pad structure of image sensor circuit board
Figure；
Fig. 5 is a schematic perspective view of the integral housing of bar code reading engine of the present invention；
Fig. 6 is another schematic perspective view of the integral housing of bar code reading engine of the present invention；
Fig. 7 is the rearview of the integral housing of bar code reading engine of the present invention；
Fig. 8 is the schematic diagram of the base plate of the integral housing of bar code reading engine of the present invention；
Fig. 9 is the schematic diagram of the shadow shield of bar code reading engine of the present invention.
Reference is expressed as in figure：1- integral housings, 2- decoding circuit boards, 3- image sensor circuit boards, 4- light
Source circuit plate, 11- bottom panels, 12- front panels, 121- camera lenses, 13- first side plates, 131- openings, 14- second side plates,
132- third side panels, 141- fixation indents, 15- backplates, 16- optical imagery districts, 161- shadow shields, 162- speculums,
163- lower panels, 21- solder joints, 22- contact sockets, 23- screw holes, 122- lighting windows, 123- aims at window, and 17- aims at light
Source storage area, 171- collector lenses, 18- lighting areas；172- aims at light source holding tank；173- collector lens receiving spaces.
Specific embodiment
As shown in figure 1, being the recognition flow chart of steps of bar code reading method of the present invention.As shown in Fig. 2 being the present invention
The preferred embodiment of the reading engine of the recognition bar code of bar code reading method.The bar code reading engine bag
Include：Integral housing 1, decoding circuit board 2, image sensor circuit board 3.Bar code decoding core in the decoding deck circuit board 2
Piece can adopt the one-dimensional barcode decoding chip disclosed in Chinese patent literature CN101840496B, and be designed with and the chip
The circuit structure matched somebody with somebody.The imageing sensor of described image sensor circuit board 3 adopts strip ccd image sensor (Charge-
Coupled Device, charge coupled cell), the ccd image sensor can adopt the model of Toshiba (Toshiba) company
For the strip ccd image sensor of TCD1103GFG.
As shown in figure 3, a kind of bar code reading engine also includes：Light source circuit board 4.The light source circuit board 4
Further include：
Aim at light source；The light source that aims at is a laser instrument in regular geometric shapes.In the present invention, using cylindric
Red laser, specially QSI Corp. (http://www.qsilaser.com/) model QL65D5SA-N laser two
Pole pipe, a length of 650nm of visible light wave of its output.In order to preferably realize aiming at effect, in the laser diode outer wrapping
The light tight shell of black, while arranging a collector lens in front, forms laser diode lamp group.May also be employed columned green
Color laser instrument, according to using need selected.
Lighting source；The lighting source is infrared light emitting diode, and in the present invention, infrared light-emitting diode is adopted
The infrared light-emitting diode of hundred million light (EVERLIGHT) company (www.everlight.com) model HIR204C, its output
It is people's light far from eye that the wavelength of light is 850nm, and the lighting source includes at least one piece infrared light-emitting diode, this
It is bright to be located at spaced infrared light-emitting diode in same horizontal line preferably by two pieces.Due to ccd image sensor
To infrared photaesthesia, therefore adopt wavelength of transmitted light for the infrared light emitting diode of 850nm, bar code image can be better met
Require.
The pad locations of the top of the light source circuit board 4 correspondence decoding circuit board 2 are also equipped with pad, by the light
Pad on source circuit plate 4 is connected with the pad of the decoding circuit board 2 by solder joint, and the light source circuit board is by the solution
The command signal that code circuit board 2 is powered and sent by decoding circuit board 2 is performing corresponding function.
As shown in figure 4, being provided with two screw holes 23 in the decoding circuit board 2 of the bar code reading engine, pass through
Screw is removably connected with the integral housing 1, fixes.The decoding circuit board is additionally provided with contact socket 22, described
Contact socket using contacting socket under ZIF (Zero Insertion Force, ZIF) 12 PIN, with flexible cable with it is outer
If (main frame) is attached the transmission for carrying out data.The edge of the decoding circuit board 2 is provided with pad, described image sensor electricity
The top of road plate 3 is provided with pad, and the pad of described image sensor circuit board 3 is relative with the pad of the decoding circuit board 2
Should, described image sensor circuit board 3 is connected with the decoding circuit board 2 by solder joint 21, and by solder joint by the decoding
Circuit board 2 is powered and receiving and transmitting signal to image sensor circuit board 3.
As it can be seen in figures 5 and 6, the integral housing 1 is obtained using light-proof material, preferably by black in the present invention
ABS plastic is obtained.The housing preferably adopts in the present invention square configuration.The integral housing is molded using integral type
Moulding process is obtained, the step of reduce the secondary connection in each face of housing.The integral housing 1 is further included：
Bottom panel 11.
Front panel 12；The front panel 12 is provided with camera lens 121.The camera lens 121 is in the present invention preferably by being in
The poroid lens of strip.When closely reading bar code, relative to cylindrical lens are adopted in prior art, strip is poroid
Camera lens can enable imageing sensor get clearly bar code image.Camera lens rear is provided with a square region for accommodating
PMMA (polymethyl methacrylate is commonly called as acrylic) or optical glass, reduce the impacts of the impurity to bar code image such as dust.Institute
State front panel 12 and be additionally provided with long strip lighting window 122 and square aiming window 123, the lighting window is fitted its shape
PMMA (polymethyl methacrylate is commonly called as acrylic) or optical glass transparent material.The aiming window 123 may be provided at institute
The both sides of camera lens are stated, the lighting window may be provided above or below camera lens.In the present embodiment lighting window 122 is arranged
In the camera lens 121 and the lower section for aiming at window 123, the aiming window is arranged on the left side of the camera lens.
First side plate 13；The first side plate is along front panel 12 along the bottom panel 11 and a side of front panel 12
Along arranging, the first side plate 13 is provided with opening 131, coincide with the imageing sensor shape of image sensor circuit board 2,
The present invention uses strip ccd image sensor (i.e. Linear Array CCD Image Sensor), so the opening 131 is also length
Strip.
Second side plate 14；It is relative with the first side plate 13.As shown in Fig. 2 the lower right corner of the second side plate
It is additionally provided with " L " shape and fixes indent for supporting cylindrical transparent collector lens 171.
Backplate 15；It is relative with the front panel 12.
Optical imagery district 16；A speculum 162 is provided with the optical imagery district 16, the speculum 162 is common
The imaging lens of sheet type.The speculum 162 forms included angle A, the scope of the included angle A with the axial line of the camera lens 121
For 40 °～50 °, the bar code image Jing that the speculum 162 is used to obtain on the camera lens 12 flatly reflects the offer figure
As sensor capture.As shown in figure 9, in order to prevent extraneous light or the inside light leak of optical imagery district 16 to be imaged imageing sensor
Impact, be additionally provided with shadow shield 161, the shadow shield 161 removably can be connected by screw with the optical imagery district,
Make optical imagery district 16 be internally formed confined space, exterior light can only be entered by the camera lens, improve imageing sensor into
As effect.
As shown in Fig. 5,6 and 7, the integral housing 1 also includes：
Light storage area 17 is aimed at, the aiming light storage area is located at the second side 14 and the third side panel
Between 132.The size for aiming at light storage area 17 matches or slightly larger than aiming light source with the size for aiming at light source；This reality
Example is applied using cylindrical shape red laser as light source is aimed at, so aiming at light storage area 17 is also designed to cylinder with water
Level land laminating aims at light source.The front for aiming at light storage area 17 is provided with collector lens receiving space 173, the optically focused
Mirror receiving space 173 is rounded, and both sides have arc-shaped folder, prevents collector lens from shifting.The collector lens storage is empty
Between 173 it is corresponding aim at windows 123 positions carry out hollow processing, aim at light source in front of position be also carried out hollow processing.
Cylindrical transparent condenser 171 is arranged in the collector lens receiving space 173 while indent is fixed in bottom by " L " shape
Support.The effect of the cylindrical transparent condenser 171 is will to aim at light to be radiated in bar code in strip, so as to user's standard
Really aim at bar code.The cylindrical transparent condenser 171 can using PMMA (polymethyl methacrylate is commonly called as acrylic) or
Optical glass is obtained.
Lighting area 18, the lighting area 18 is located above or below the optical imagery district, is the lighting window
(122) void region at horizontal rear.The lighting area 18 is arranged on into the optical imagery district in embodiments of the invention
Lower section, is by the void region surrounded between lower panel 163 and bottom panel 12.The width of the lighting area is slightly larger than illuminating lamp tube
Width, to realize that can receive the illuminating lamp tube on light source circuit board is advisable.Two pieces are provided with the present embodiment light source circuit board
Laser instrument in same horizontal line, the lighting area 18 is in strip.
As shown in figure 8, for convenience bar code reading engine is fixed on external equipment, in the diagonal of the base plate 11
On be provided with more than one screw hole, be provided with screw hole on the present embodiment is diagonal at two, can be fixed outside by screw
In portion's equipment.
The bar code reading engine also includes：
Light source circuit board 4；Further include：
Aim at light source；The light source that aims at is a laser instrument in regular geometric shapes.In the present invention, using cylindric
Red laser, specially QSI Corp. (http://www.qsilaser.com/) model QL65D5SA-N laser two
Pole pipe, a length of 650nm of visible light wave of its output.In order to preferably realize aiming at effect, in the laser diode outer wrapping
The light tight shell of black, while arranging a collector lens in front, forms laser diode lamp group.May also be employed columned green
Color laser instrument, according to using need selected.
Lighting source；The lighting source is infrared light emitting diode, and in the present invention, infrared light-emitting diode is adopted
The infrared light-emitting diode of hundred million light (everlight) company (www.everlight.com) model HIR204C, its output
It is people's light far from eye that the wavelength of light is 850nm, and the lighting source includes at least one piece infrared light-emitting diode, this
It is bright to be located at spaced infrared light-emitting diode in same horizontal line preferably by two pieces.Due to ccd image sensor
To infrared photaesthesia, therefore adopt wavelength of transmitted light for the infrared light emitting diode of 850nm, bar code image can be better met
Require.
As shown in figure 1, the bar code reading method is comprised the following steps：
S1：The decoding deck (2) receives the triggering command of recognition bar code, is generally passed through by the triggering of external trigger button
Flexible circuit board transmits the data acquisition switch of triggering command to the decoding deck (2), and data acquisition switch receives triggering command
After start working, notify imageing sensor obtain image.While notifying imageing sensor to obtain image, open and aim at light source
And lighting source.
S2：The camera lens (121) obtains the continuous bar code picture frame of capture and transmits to described image sensor.
S3：The continuous bar code picture frame that described image sensor is obtained is transmitted to the decoding electricity by the solder joint
Road plate (2).
S4：The decoder module of the decoding circuit board (2) calls the decoding algorithm stored in memory cell to described one-dimensional
Barcode image frame is decoded one by one；If successfully decoded exports bar code information；Next frame bar code image is carried out if decoding failure
The decoding of frame.
The decodable code system of default algorithm in the decoding deck of the bar code reading engine includes:EAN-13,
EAN-8,UPC-A,UPC-E,ISSN,ISBN,Codabar,Code 128,Code 93,ITF-6,ITF-14,Interleaved
2 of 5,Industrial 2 of 5,Standard 2 of 5,Matrix 2 of 5,GS1 Databar,Code 39,
Code 11,MSI-Plessey,Plessey。
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (8)
1. bar code reading method, it is characterised in that include：
The reading engine of recognition bar code；The reading engine includes：
Integral housing (1)；The integral housing (1) is obtained using light-proof material, is further included：
Bottom panel (11)；
Front panel (12)；The front panel (12) is provided with camera lens (121)；
First side plate (13)；The first side plate is along front panel (12) along the one of the bottom panel (11) and front panel (12)
Along arranging, the first side plate (13) is provided with opening (131) for side, with the imageing sensor on the outside of first side plate
The imageing sensor shape of circuit board (3) is coincide；
Backplate (15)；It is relative with the front panel (12)；
Optical imagery district (16)；Before the optical imagery district (16) is by the backplate (15) and including the camera lens (121)
Panel (12) and the first side plate (13) and be arranged between first side plate (13) and second side plate (14)
Three side panels (132) and along above-mentioned panel lower edge arrange below plate (163) surrounded；In the optical imagery district (16)
A speculum (162) is provided with, for the bar code image opening (131) that the camera lens (121) is obtained to be allowed
Fit in the described image sensor capture of the opening (131)；
Second side plate (14)；The first side plate is along front panel (12) along the another of the bottom panel (11) and front panel (12)
Side edge is arranged；
Decoding circuit board (2)；The decoding circuit board (2) positioned at the top of the integral housing (1), with the integral type shell
Body (1) is detachably connected；Decoding circuit board (2) edge is provided with pad, described image sensor circuit board (3) it is upper
Side is provided with pad, and the pad of described image sensor circuit board (3) is corresponding with the pad of the decoding circuit board (2), institute
State image sensor circuit board (3) to be connected by solder joint with the decoding circuit board (2)；
The bar code reading method is comprised the following steps：
S1：The decoding deck (2) receives the triggering command of recognition bar code；
S2：The camera lens (121) obtains the continuous bar code picture frame of capture and transmits to described image sensor；
S3：The continuous bar code picture frame that described image sensor is obtained is transmitted to the decoding circuit board by the solder joint
(2)；
S4：The decoding circuit board (2) decodes one by one to the bar code picture frame；If successfully decoded output bar code letter
Breath；The decoding of next frame barcode image frame is carried out if decoding failure.
2. bar code reading method according to claim 1, it is characterised in that the optical imagery district of the reading engine
(16) top is connected with shadow shield (161), and the shadow shield (161) is detachable.
3. bar code reading method according to claim 2, it is characterised in that the integral housing of the reading engine
(1) front panel (12) is provided with lighting window (122) above or below the camera lens (121), in the camera lens (121)
Side is provided with aiming window (123), and the window that aims at is provided with the transparent material that laminating aims at window shape；
The integral housing (1) also includes：
Light storage area (17) is aimed at, the aiming light storage area is located at the second side (14) and the third side panel
(132) between；The size for aiming at light storage area (17) matches or slightly larger than aiming light source with the size for aiming at light source；
Cylindrical transparent condenser is provided between aiming light storage area (17) front and aiming window (123)
(171)；
Lighting area (18)；The lighting area (18) is the lighting window above or below the optical imagery district
(122) void region at horizontal rear, the width of the lighting area is slightly larger than the width of lighting source；
The reading engine also includes：
Light source circuit board (4)；Further include：
Aim at light source；The light source that aims at is a laser instrument in regular geometric shapes；
Lighting source；The lighting source is infrared light emitting diode, and the lighting source includes at least one piece described infrared
Line light emitting diode.
4. bar code reading method according to claim 3, it is characterised in that light source circuit board (4) top pair
The pad locations for answering the decoding circuit board (2) are provided with pad, are connected by solder joint with the pad of the decoding circuit board (2)
Connect.
5. bar code reading method according to claim 4, it is characterised in that the camera lens is elongated poroid saturating
Mirror.
6. bar code reading method according to claim 5, it is characterised in that described image sensor is strip type
Ccd image sensor.
7. bar code reading method according to claim 6, it is characterised in that the bottom panel (11) is provided with
Screw hole above.
8. according to the arbitrary described bar code reading method of claim 1-7, it is characterised in that the integral housing (1)
It is obtained using black ABS plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410481666.3A CN104298949B (en) | 2014-09-19 | 2014-09-19 | One-dimensional bar code recognition method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410481666.3A CN104298949B (en) | 2014-09-19 | 2014-09-19 | One-dimensional bar code recognition method |
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| Publication Number | Publication Date |
|---|---|
| CN104298949A CN104298949A (en) | 2015-01-21 |
| CN104298949B true CN104298949B (en) | 2017-04-19 |
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| CN201410481666.3A Expired - Fee Related CN104298949B (en) | 2014-09-19 | 2014-09-19 | One-dimensional bar code recognition method |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104881664A (en) * | 2015-05-21 | 2015-09-02 | 福建新大陆电脑股份有限公司 | Image acquiring device used for target area imaging |
| CN105046183B (en) * | 2015-07-22 | 2017-07-18 | 福建新大陆自动识别技术有限公司 | The coding/decoding method and system of a kind of distortion QR codes |
| CN106066982B (en) * | 2016-07-10 | 2019-04-26 | 苏州摩比信通智能系统有限公司 | Linear code based on cmos sensor reads mould group and motion scan terminal |
| CN106599752A (en) * | 2016-12-26 | 2017-04-26 | 苏州斯普锐智能系统有限公司 | Bar code scanning device, hardware decoding chip and decoding method thereof |
| CN111563394B (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 image acquisition module |
| CN114218972B (en) * | 2021-12-16 | 2023-09-01 | 福建新大陆自动识别技术有限公司 | Bar code reading module |
| CN115310468B (en) * | 2022-08-08 | 2023-04-14 | 北京微晶物联科技有限公司 | Microcrystal code scanning device and method for explosion-proof environment |
| CN115270837B (en) * | 2022-09-27 | 2023-01-06 | 北京紫光青藤微系统有限公司 | One-dimensional code identification device and identification method |
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2014
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201044106Y (en) * | 2007-02-02 | 2008-04-02 | 徐晓东 | Mobile data acquisition terminal |
| CN201311641Y (en) * | 2008-12-03 | 2009-09-16 | 中山市安稳科技有限公司 | Minimized CCD bar code scanner |
| CN101840496A (en) * | 2010-06-01 | 2010-09-22 | 福建新大陆电脑股份有限公司 | One-dimensional barcode decoding chip |
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