CN109583255A - A kind of scanning means and its scan module - Google Patents
A kind of scanning means and its scan module Download PDFInfo
- Publication number
- CN109583255A CN109583255A CN201811373165.8A CN201811373165A CN109583255A CN 109583255 A CN109583255 A CN 109583255A CN 201811373165 A CN201811373165 A CN 201811373165A CN 109583255 A CN109583255 A CN 109583255A
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- field
- depth
- digital signal
- scan module
- colour
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10831—Arrangement of optical elements, e.g. lenses, mirrors, prisms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10792—Special measures in relation to the object to be scanned
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K2007/10485—Arrangement of optical elements
Abstract
The invention discloses a kind of scanning means and its scan modules, its scan module acquires the gray image signals of the colour code by the black and white camera, and the first digital signal is converted by gray image signals, the colour picture signal of the colour code is acquired by the colour imagery shot, and the second digital signal is converted by colour picture signal, first digital signal and second digital signal are received by described image processing unit and synthesize third digital signal, the third digital signal is further decoded by the main control chip, more details information of the third digital signal relative to first digital signal and second digital signal comprising the colour code, reduce the bit error rate, so that the main control chip decodes the more efficient of the third digital signal, the scan module can be improved and scan the coloured silk The barcode scanning speed and success rate of colour coding.
Description
Technical field
The present invention relates to a kind of scanning means and its scan module, espespecially a kind of scanning means to scanning colour code and
Its scan module.
Background technique
Bar code is the multiple secret notes and blank for not waiting width, is arranged according to certain coding rule, to express one group
The graphical identifier of information.As the information for including required for bar code is more and more, single one-dimension code or two dimensional code are not
It is able to satisfy the highdensity requirement of bar code information, three-dimensional color code comes into being.People assign color to one-dimension code or two dimensional code, and
On the basis of existing one-dimension code or two dimensional code, more information are encoded into the color of color code according to the code system of artificial settings
Information enables color code to indicate bigger information content.However, the color sensitive element for reading color code is filtered using color filter
The partial information of color code, causes the resolution ratio of color sensitive element not high, can not read the detailed information of color code, cause to read
Color code speed is slow, or even can not decode.
The present invention is in view of the above problems, provide a kind of new scanning means and its scan module, using new method and skill
Art means are to solve these problems.
Summary of the invention
For background technique problem encountered, what the present invention created be designed to provide a kind of scanning means and its scanning
Module acquires the image of colour code by black and white camera and colour imagery shot respectively and is synthesized, and then passes through master control core
Piece decoding, improves the barcode scanning speed and success rate of colour code.
To achieve the above object, invention uses following technological means:
The present invention provides a kind of scan module, to scanning colour code, the colour code by pre-arranged code rule and comprising
There is the color of certain data information to encode, comprising certain data information, the scan module is characterised by comprising:
Black and white camera is converted into one first to acquire the gray level image of the colour code, and by gray image signals
Digital signal；
Colour imagery shot is converted into one second to acquire the color image of the colour code, and by colour picture signal
Digital signal；
Image processing unit is connected to the black and white camera and the colour imagery shot, to digital by described first
Signal and the second digital signal synthesis third digital signal；
Main control chip connects described image processing unit, to receive and decode the third digital signal.
Optionally, the third digital signal includes the image grayscale information in first digital signal and described second
Image Chroma Information in digital signal.
Optionally, first camera have first depth of field, the second camera have second depth of field, described first
The depth of field and second depth of field at least half are overlapped.
Optionally, first camera have the first visual field, the second camera have the second visual field, described first
Visual field and the overlapped formation overlapping region of second visual field, first depth of field and second depth of field have more than half
Positioned at the overlapping region.
Optionally, first depth of field and second depth of field overlap to form an overlapping depth of field, the length of the overlapping depth of field
Not less than the half of any of first depth of field and second depth of field depth of field length.
Optionally, the length of the overlapping depth of field is the length of second depth of field, and the overlapping depth of field each falls within institute
It states in overlapping region.
Optionally, the main control chip is set on a mainboard, and first camera and the second camera are set side by side
In same substrate, the electrical property of substrate is connected to the mainboard；Wherein the first camera is black and white camera, second camera shooting
Head is colour imagery shot.
Optionally, the scan module has a shell, and the black and white camera and the colour imagery shot are shown forward
Be exposed to the shell, a light compensating lamp be set to the front end of the shell to acquire the colour code when carry out light filling, the benefit
Light lamp emits white light.
The present invention provides also a kind of scanning means, has such as above-mentioned scan module, and the scanning means has a shell,
There is a scanning window, it is characterised in that: the scan module is contained in the shell and direction on one end face of the shell
The scanning window, to penetrate the scanning window scanning colour code.
Optionally, the shell is equipped with Single port to be connected to a display screen, and the display screen is to show the coloured silk
The information of colour coding.
Compared with prior art, the invention has the following advantages:
The scan module has both the parsing power of the black and white camera and the color capturing ability of the colour imagery shot,
By described image processing unit by third digital signal described in first digital signal and second digital signal synthesis,
The third digital signal includes the more of the colour code relative to first digital signal and second digital signal
Detailed information, reduce the bit error rate can be improved described so that the main control chip decodes the more efficient of the third digital signal
Scan module scans the barcode scanning speed and success rate of the colour code.
Detailed description of the invention
Fig. 1 is the perspective view of scanning means of the present invention；
Fig. 2 is the schematic diagram of scan module of the present invention；
Fig. 3 is the main view of scan module of the present invention；
Fig. 4 is the schematic diagram of the part-structure in Fig. 3；
Fig. 5 is the flow chart of the scanning means scanning colour code in Fig. 1.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
As shown in Figures 1 to 4, scanning means 100 provided by the invention is a kind of fixed scanner, in other embodiments
(not shown), the scanning means 100 can be the scanning means such as scanner or A seating scanner 100, be also possible to PDA etc. certainly
Scanning means 100 with display screen to show bar code information.To scanning colour code B, (reference has the scanning means 100
The two dimensional code of color, but it is not limited to two dimensional code), the colour code B has at least one colour, and is carried out according to certain code system
Coding, so that the color of the colour code B also illustrates that certain information；Such as 5 × 5 four colour moment battle array colour code etc..
As shown in Figure 1, the scanning means 100 has the shell 1 of a cubic type and is contained in the one of the shell 1
A scan module 2.The inside of the shell 1 has an accommodating chamber 11, and there is a scanning window 12 to connect for 1 front end of shell
Pass through the accommodating chamber 11, the rear end of the shell 1 be equipped with a port 13 to be connected to a display screen (it is not shown, under
Together).
As shown in Fig. 2, the scan module 2 has in horizontally disposed one piece of mainboard 3 and is integrated on the mainboard 3
A main control chip 31 and a scan module 4.
Referring again to Fig. 1 and Fig. 3, the scan module 4 is contained in the accommodating chamber 11, and scan module 4 has one
Shell 41 and one piece of substrate 42 for fitting in 41 rear end of shell.The scan module 4 includes black and white camera 43 and colour
Camera 44, two cameras or so are adjacent to be contained in the shell 41 and is electrically installed on the base together with the shell 41
On plate 42, direction and it is revealed in the scanning window 12, two cameras are installed on the same substrate 42, convenient for design
And assembling, structure is simple, is conducive to radiate.In addition, there are four light compensating lamps 45 to be respectively arranged in the front end face of the shell 41
On four angles, to carry out light filling when scan module 4 acquires the colour code B, four light compensating lamps 45 are white light LEDs,
It avoids generating interference using colouring information of the colored lamp to the colour code B, influences the scanning of the colour code B.
Referring again to Fig. 2, the substrate 42 is installed on the mainboard 3 and is electrically connected at by a soft arranging wire 5 described
Mainboard 3, so that the scan module 4 electrically conducts with the main control chip 31, the main control chip 31 controls the black and white and takes the photograph
As first 43 and the colour imagery shot 44 acquire the image of the colour code B simultaneously, to reduce the barcode scanning time.In an embodiment
In, additional your the array filter plate of saluting of the black and white camera 43 can form colour imagery shot 44, therefore can be by two cameras
Baeyer array filter plate is installed additional using black and white camera, and wherein on a black and white camera to constitute colour imagery shot 44.
Referring to figure 4., the black and white camera 43 is by a black white image sensor 431 being welded on the substrate 42
With a lens module (LENS) 432 composition for being installed on 431 front of black white image sensor.The black and white camera 43
The first number is converted by the gray image signals S1 to acquire the gray image signals S1 of the colour code B, and further
Word signal；And the black and white camera 43 is defined with the first visual field F1 and the first depth of field L1.The colour imagery shot 44 is by welding
A color image sensor 441 being connected on the substrate 42 and it is installed on the another of 441 front of color image sensor
One lens module (LENS) 442 forms, colour picture signal of the colour imagery shot 44 to acquire the colour code B
S2, and further the second digital signal is converted by the colour picture signal S2；And the definition colour imagery shot 44 has
Second visual field F2 and the second depth of field L2.First depth of field L1 and second depth of field L2 are along the front and back of the scan module 2
To axial direction at least more than half overlap to form an overlapping depth of field, the length of the overlapping depth of field is more than or equal to (being not less than) institute
State the half of any depth of field length in the first depth of field L1, second depth of field L2.In an Application Example, which is
For second depth of field L2, the second visual field F2 and the first visual field F1 one overlapping region F3 of overlapped formation, and
The overlapping depth of field is each fallen in the overlapping region F3, then when the colour code B is located at the overlapping in the overlapping region F3
When depth of field position, the black and white camera 43 and the colour imagery shot 44 can collect the clear figure of the colour code B,
When two cameras, one of those collects the clear image of the colour code B, it is not necessary to which front and back adjusts the scanning mould again
The relative position of block 2 and the colour code B, another camera can collect the clear figure of the colour code B, when saving
Between.
In the scan module 4, an image processing unit 32 is integrated with the main control chip 31 and is packaged together,
Described image processing unit 32 receives first digital signal and second digital signal by the soft arranging wire 5, and will
The Image Chroma Information of the image grayscale information of first digital signal and second digital signal is mutually spliced into one
Third digital signal.
Specifically, described image processing unit 32 extracts the image grayscale information in first digital signal, obtains
The luminance information of each pixel of the colour code B, the image chroma in the second digital signal described in onestep extraction of going forward side by side
Information, obtains the color information of each pixel of the colour code B, and by the bright of the colour code B each pixel
Degree information and color information one-to-one correspondence are synthesized, and the third digital signal is obtained.In other embodiments, extraction can be spaced
Image Chroma Information in second digital signal, so that the third digital signal only includes the colour code B half
Carrier chrominance signal, the color information of a pixel is corresponding with the luminance information of two neighbor pixels at this time.
In turn, the third digital data transmission is decoded to the main control chip 31, which is aforementioned
The inverse process of cataloged procedure.In the present embodiment, the third digital signal does not include the image grayscale of second digital signal
Information, and only include the image grayscale information of more accurate first digital signal of luminance information.Since third number is believed
Number include the more details information of the colour code B relative to first digital signal and second digital signal, can mention
The high scan module 2 scans the barcode scanning speed and success rate of the colour code B.In the present embodiment, the main control chip 31 with
Described image processing unit 32 integrates, in other embodiments (not shown), at the main control chip 31 and described image
Reason unit 32 can be separated from each other on the mainboard 3 or even described image processing unit 32 can be integrated on the substrate 42.
Further, as shown in figure 5, the workflow of the scan module 4 are as follows:
S100: black and white camera acquires the gray image signals of colour code, while the coloured silk of colour imagery shot acquisition colour code
Color picture signal；
S200: image processing unit extracts the image grayscale information of gray image signals and extracts colour picture signal
Image Chroma Information, and synthesize third signal；
S300: main control chip decodes third digital signal；The main control chip 31 is again by the information decoded by being set to
The port 13 of 2 rear end of scan module transmits and is shown in the display screen, completes entire barcode scanning process.
S400: display screen shows the information of colour code.
Scanning means and its specification module of the invention has the advantages that
1. the scan module 2 has both the parsing power of the black and white camera 43 and the color of the colour imagery shot 44 is caught
Ability is caught, by described image processing unit 32 by third described in first digital signal and second digital signal synthesis
Digital signal, the third digital signal include the colour relative to first digital signal and second digital signal
The more details information of code B, reduces the bit error rate, so that the main control chip 31 decodes the efficiency of the third digital signal more
Barcode scanning speed and success rate that the scan module 2 scans the colour code B can be improved in height.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of scan module, to scanning colour code, the colour code is by pre-arranged code rule and includes that certain data are believed
The color of breath encodes, and the scan module is characterised by comprising:
Black and white camera is converted into one first number to acquire the gray level image of the colour code, and by gray image signals
Signal；
Colour imagery shot is converted into one second number to acquire the color image of the colour code, and by colour picture signal
Signal；
Image processing unit is connected to the black and white camera and the colour imagery shot, to by first digital signal
With the second digital signal synthesis third digital signal；
Main control chip connects described image processing unit, to receive and decode the third digital signal.
2. scan module as described in claim 1, it is characterised in that: the third digital signal includes the first number letter
The Image Chroma Information in image grayscale information and second digital signal in number.
3. scan module as described in claim 1, it is characterised in that: first camera has first depth of field, and described the
Two cameras have second depth of field, and first depth of field and second depth of field at least half are overlapped.
4. scan module as claimed in claim 3, it is characterised in that: first camera has the first visual field, and described the
Two cameras have the second visual field, first visual field and the overlapped formation overlapping region of second visual field, described first
The depth of field and second depth of field have more than half to be located at the overlapping region.
5. scan module as claimed in claim 4, it is characterised in that: first depth of field and second depth of field overlap to form
The one overlapping depth of field, the length of the overlapping depth of field is not less than any of first depth of field and second depth of field depth of field length
Half.
6. scan module as claimed in claim 5, it is characterised in that: the length of the overlapping depth of field is second depth of field
Length, and the overlapping depth of field is each fallen in the overlapping region.
7. scan module as described in claim 1, it is characterised in that: the main control chip is set on a mainboard, and described first
Camera and the second camera are set to same substrate side by side, and the electrical property of substrate is connected to the mainboard；Wherein first take the photograph
Picture head is black and white camera, and the second camera is colour imagery shot.
8. scan module as claimed in claim 7, it is characterised in that: the scan module has a shell, and the black and white is taken the photograph
As head and the colour imagery shot are revealed in the shell forward, a light compensating lamp is set to the front end of the shell to acquire
State colour code when carry out light filling, the light compensating lamp emits white light.
9. a kind of scanning means, has scan module as claimed in any one of claims 1 to 8, the scanning means has one
Shell has a scanning window on one end face of the shell, it is characterised in that: the scan module be contained in the shell and
Towards the scanning window, to penetrate the scanning window scanning colour code.
10. scanning means as claimed in claim 9, it is characterised in that: it is aobvious to be connected to one that the shell is equipped with Single port
Display screen, information of the display screen to show the colour code.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373165.8A CN109583255A (en) | 2018-11-19 | 2018-11-19 | A kind of scanning means and its scan module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811373165.8A CN109583255A (en) | 2018-11-19 | 2018-11-19 | A kind of scanning means and its scan module |
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| Publication Number | Publication Date |
|---|---|
| CN109583255A true CN109583255A (en) | 2019-04-05 |
Family
ID=65922716
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811373165.8A Pending CN109583255A (en) | 2018-11-19 | 2018-11-19 | A kind of scanning means and its scan module |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184380A (en) * | 2011-05-10 | 2011-09-14 | 华南农业大学 | Color-superposition two-dimension code system and application method thereof |
| CN103888672A (en) * | 2014-03-31 | 2014-06-25 | 宇龙计算机通信科技(深圳)有限公司 | Terminal and terminal shooting method |
| US9307248B2 (en) * | 2013-03-08 | 2016-04-05 | Mediatek Inc. | Image encoding method and apparatus for performing bit-plane scanning coding upon pixel data and related image decoding method and apparatus |
| CN105976004A (en) * | 2016-04-25 | 2016-09-28 | 华南农业大学 | Color two-dimensional code multi-dimensional information encoding and decoding methods and devices |
-
2018
- 2018-11-19 CN CN201811373165.8A patent/CN109583255A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184380A (en) * | 2011-05-10 | 2011-09-14 | 华南农业大学 | Color-superposition two-dimension code system and application method thereof |
| US9307248B2 (en) * | 2013-03-08 | 2016-04-05 | Mediatek Inc. | Image encoding method and apparatus for performing bit-plane scanning coding upon pixel data and related image decoding method and apparatus |
| CN103888672A (en) * | 2014-03-31 | 2014-06-25 | 宇龙计算机通信科技(深圳)有限公司 | Terminal and terminal shooting method |
| CN105976004A (en) * | 2016-04-25 | 2016-09-28 | 华南农业大学 | Color two-dimensional code multi-dimensional information encoding and decoding methods and devices |
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Application publication date: 20190405 |