CN106611146A - Barcode scanning equipment based on full-waveband spectrum - Google Patents
Barcode scanning equipment based on full-waveband spectrum Download PDFInfo
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- CN106611146A CN106611146A CN201611213783.7A CN201611213783A CN106611146A CN 106611146 A CN106611146 A CN 106611146A CN 201611213783 A CN201611213783 A CN 201611213783A CN 106611146 A CN106611146 A CN 106611146A
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- bar code
- control unit
- imager
- micro
- led illumination
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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
- G06K7/10712—Fixed beam scanning
- G06K7/10722—Photodetector array or CCD scanning
- G06K7/10732—Light sources
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Image Input (AREA)
Abstract
The invention provides barcode scanning equipment based on a full-waveband spectrum. The barcode scanning equipment comprises a white light LED illumination module, an infrared light LED illumination module, an ultraviolet light LED illumination module, an imager and a micro control unit; the illumination modules are connected with respective drivers and a general input/output interface of the micro control unit; the imager is connected with an I2C converter, an I2C bus interface of the micro control unit of the barcode scanning equipment and a CMOS image sensor interface of the micro control unit; the imager is a full-waveband CMOS. According to the barcode scanning equipment, the three illumination modules are adopted, full-waveband decoding is realized, a better contrast ratio is obtained for barcodes in special colors, and barcode reading is promoted; besides, a better decoding effect can also be provided for some environments where light is weak. Therefore, the work efficiency of the barcode scanning equipment can be improved, and the applicable work environment of the barcode scanning equipment is expanded.
Description
Technical field
The present invention relates to industrial automatic identification technology field, more particularly to a kind of bar code scan based on all band spectrum sets
It is standby.
Background technology
Automatic identification technology is of great significance for the Informatization Development tool of today's society.In general, one
In individual information system, the collection of data is the collecting work of the initial data that automatic identification completes system, solves people's number
According to the speed of input it is slow, the bit error rate is high, high labor intensive, simple repeated high work the problems such as, be that computer information processing is carried
Supply quickly and accurately to carry out the effective means of data acquisition input, therefore, automatic identification technology is used as a kind of data acquisition skill
Art, just promptly in all conglomeraties and application scenario by universal application.Bar code be a kind of range of application widely to
The symbol of various data messages is represented, and bar code scan equipment is used exclusively for reading the data acquisition equipment of bar code information.
Bar code scan equipment is broadly divided into two kinds, and one kind is laser type bar code scan equipment, is mainly used in bar code
Reading；Another kind is imaging type bar code scan equipment, and which is mainly used in the reading of the bigger Quick Response Code of quantity of information, it is also possible to read
Take bar code.As Quick Response Code is in the quick popularization and application of all trades and professions, imaging type bar code scan equipment has become current master
The bar code scanning device of stream.Current image-type bar code scan equipment is all to use visible illumination, and such illumination is for one
The bar code of a little the special environments and special color, such as red, blueness, purple and band watermark bar code are all difficult identification, reduce bar code
The efficiency of identification, limits its application scenario.
The content of the invention
For the problem in existing application, it is an object of the invention to provide a kind of bar code scan based on all band spectrum sets
Standby, which uses all band to illuminate, and can effectively increase the contrast of bar code, reaches good bar code discrimination, adapts to various
The bar code of application scenario reads.
To achieve the object of the present invention, a kind of bar code scan equipment based on all band spectrum of the invention includes white light
LED illumination module, infrared light LED illumination module, ultraviolet leds lighting module, imager and micro-control unit, described is white
Light LED illumination module, infrared light LED illumination module, ultraviolet leds lighting module respectively with White LED Driver, infrared light
LED driver and ultraviolet leds driver are connected and are connected with the universal input/output interface of micro-control unit, it is described into
Be connected with I2C transducers and be connected with the I2C EBIs of the micro-control unit of bar code scan equipment as device, imager also with it is micro-
The cmos image sensor interface connection of control unit；Described imager is the photosensitive CMOS of all band.
Preferably, the decoding step of described bar code scan equipment is：Micro-control unit controls drive white-light illuminating to open,
Imager returns image and decodes to micro-control unit, the operation termination if successfully decoded；If decoding is unsuccessful, micro-control unit drives
Dynamic Infrared LED illumination is opened, and imager returns image and decodes to micro-control unit, the operation termination if successfully decoded；If decoding
Unsuccessful, micro-control unit drives ultraviolet LED illumination to open, and imager returns image and decodes to micro-control unit, if being decoded into
Work(then operation termination；If decoding is unsuccessful, micro-control unit returns to driving white-light illuminating and opens, and so circulates, until bar code solution
Go out, operation termination.
Further preferably, described bar code scan equipment includes Handheld bar code scanner or fixed bar code scan equipment.
The bar code scan equipment based on all band spectrum of the present invention adopts three kinds of lighting modules, realizes that all band is decoded,
For the bar code of special color obtains more preferable contrast, read beneficial to bar code；The environment weaker for some light, red in addition
The barcode scanner of outer LED illumination, using the teaching of the invention it is possible to provide more preferable decoding effect；The work efficiency of bar code scan equipment can be so improved,
Expand its applicable working environment.
Description of the drawings
By detailed description below in conjunction with the accompanying drawings, the aforesaid and other objects, features and advantages of the present invention will become
Obviously.Wherein：
Fig. 1 show the structure composed schematic diagram of the bar code scan equipment based on all band spectrum of the present invention；
Fig. 2 show the workflow schematic diagram of the bar code scan equipment based on all band spectrum of the present invention.
Specific embodiment
Details are as follows for structure, operation principle and advantage with reference to the accompanying drawing present invention.
The structure composed schematic diagram of the bar code scan equipment based on all band spectrum of the present invention with reference to shown in Fig. 1, institute
Stating bar code scan equipment includes White-light LED illumination module (wavelength 400nm～760nm), infrared light LED illumination module, ultraviolet light
LED illumination module and imager, described White-light LED illumination module, infrared light LED illumination module (wavelength 760nm～
1000nm), ultraviolet leds lighting module (wavelength：10nm～400nm) respectively with White LED Driver, infrared light LED drive
Device and ultraviolet leds driver are connected and are connected with the universal input/output interface (GPIO) of micro-control unit (MCU), institute
State imager to be connected with I2C transducers and be connected with the I2C EBIs of the micro-control unit (MCU) of bar code scan equipment, into
As device is also connected with cmos image sensor interface (CSI) of micro-control unit (MCU)；Described imager is that all band is photosensitive
Complementary metal oxide semiconductors (CMOS) (CMOS), can not only receive visible ray, can also receive the light of infrared and ultraviolet wavelength；
When bar code scan equipment works, described White-light LED illumination module, infrared light LED illumination module and ultraviolet leds lighting module
Lighted by respective lighting module driver successively by MCU controls, be reflected back after being irradiated to bar code again on imager (CMOS)
Image is produced, image returns again to microprocessing unit (MCU) and decoded.
Specifically, with reference to Fig. 2, the operation principle of the bar code scan equipment based on all band spectrum of the present invention is bar code solution
Code stream journey is as follows：
User presses scanning device scanning triggering button, and MCU controls drive white-light illuminating to open, and imager returns image and gives
MCU is decoded, the operation termination if successfully decoded；If decoding is unsuccessful, MCU drives Infrared LED illumination to open, and imager returns figure
As decoding to MCU, the operation termination if successfully decoded；If decoding is unsuccessful, MCU drives ultraviolet LED illumination to open, and imager is returned
Return image to decode to MCU, the operation termination if successfully decoded；If decoding is unsuccessful, MCU returns to driving white-light illuminating and opens, such as
This circulation, until bar code is solved, operation termination.
In above-mentioned On The Cycle Working Process, light each lighting module and can correspondingly export 1 two field picture, that is, 3 frames
Image can be circulated as one；The present invention is not adopted while open the lighting module of three kinds of wavelength, mainly in view of each wavelength
Illumination between can infect impact picture quality, therefore by the way of three kinds of lighting modules circulations are opened.
The bar code scan equipment of the present invention can be fixed bar code scan on Handheld bar code scanner, or table
Equipment, the bar code scan equipment that can be placed on desktop or be embedded under cash register table surface.
The bar code scan equipment based on all band spectrum of the present invention adopts three kinds of lighting modules, realizes that all band is decoded,
For the bar code of special color can produce more preferable contrast in the case where the wavelength illumination of its color is adapted to, the resolution of image is more
It is good, so as to be more beneficial for MCU decodings；The other environment weaker for some light, the barcode scanner of Infrared LED illumination, Neng Gouti
For more preferable decoding effect；The work efficiency of bar code scan equipment can be so improved, expands its applicable working environment.
Described embodiment is the invention is not limited in, those skilled in the art is public affairs in the spirit without departing from the present invention
In the range of opening, can still make some amendments or change, thus the scope that limited with claims of the scope of the present invention as
It is accurate.
Claims (3)
1. a kind of bar code scan equipment based on all band spectrum, it is characterised in that the bar code scan equipment includes white light LEDs
Lighting module, infrared light LED illumination module, ultraviolet leds lighting module, imager and micro-control unit, described white light
LED illumination module, infrared light LED illumination module, ultraviolet leds lighting module respectively with White LED Driver, infrared light LED
Driver and ultraviolet leds driver are connected and are connected with the universal input/output interface of micro-control unit, the imager
Be connected with I2C transducers and be connected with the I2C EBIs of the micro-control unit of bar code scan equipment, imager also with microcontroller
The cmos image sensor interface connection of unit；Described imager is the photosensitive CMOS of all band.
2. a kind of bar code scan equipment based on all band spectrum as claimed in claim 1, it is characterised in that described bar code
The decoding step of scanning device is：Micro-control unit controls drive white-light illuminating to open, and imager returns image and gives microcontroller list
Unit's decoding, the operation termination if successfully decoded；If decoding is unsuccessful, micro-control unit drives Infrared LED illumination to open, imager
Return image to decode to micro-control unit, the operation termination if successfully decoded；If decoding is unsuccessful, micro-control unit drives ultraviolet
LED illumination is opened, and imager returns image and decodes to micro-control unit, the operation termination if successfully decoded；If decoding is unsuccessful,
Micro-control unit returns to driving white-light illuminating and opens, and so circulates, until bar code is solved, operation termination.
3. a kind of bar code scan equipment based on all band spectrum as claimed in claim 1, it is characterised in that described bar code
Scanning device includes Handheld bar code scanner or fixed bar code scan equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611213783.7A CN106611146A (en) | 2016-12-26 | 2016-12-26 | Barcode scanning equipment based on full-waveband spectrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611213783.7A CN106611146A (en) | 2016-12-26 | 2016-12-26 | Barcode scanning equipment based on full-waveband spectrum |
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| Publication Number | Publication Date |
|---|---|
| CN106611146A true CN106611146A (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611213783.7A Pending CN106611146A (en) | 2016-12-26 | 2016-12-26 | Barcode scanning equipment based on full-waveband spectrum |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107895133A (en) * | 2017-12-08 | 2018-04-10 | 苏州斯普锐智能系统有限公司 | A kind of desktop imaging type bar code scan equipment |
| CN108932447A (en) * | 2018-07-25 | 2018-12-04 | 重庆骞纳马科技有限公司 | A kind of power construction managing security tools and instruments Handheld intelligent equipment and its control method |
| CN109388985A (en) * | 2017-08-10 | 2019-02-26 | 广州三码物联科技有限公司 | A kind of bimodulus two-dimensional code scanning device |
| WO2020098233A1 (en) * | 2018-11-15 | 2020-05-22 | 深圳盈达信息科技有限公司 | Scanning device, supplementary lighting lamp control system for same, and control method |
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| US20020079370A1 (en) * | 1998-03-11 | 2002-06-27 | Wood Robert J. | Illumination source for optical reading apparatus |
| CN2669274Y (en) * | 2003-11-17 | 2005-01-05 | 深圳矽感科技有限公司 | Bar-code identifying-reading apparatus |
| CN2690981Y (en) * | 2004-03-17 | 2005-04-06 | 深圳矽感科技有限公司 | Non contact barcode reader |
| CN201548971U (en) * | 2009-10-26 | 2010-08-11 | 茂森科技股份有限公司 | Multi-wavelength barcode reader |
| CN201965629U (en) * | 2011-01-04 | 2011-09-07 | 茂森科技股份有限公司 | Vertical cavity surface emitting laser bar code scanner |
| CN202584157U (en) * | 2012-05-21 | 2012-12-05 | 深圳市民德电子科技有限公司 | Two-dimensional bar code reading system |
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2016
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020079370A1 (en) * | 1998-03-11 | 2002-06-27 | Wood Robert J. | Illumination source for optical reading apparatus |
| CN2669274Y (en) * | 2003-11-17 | 2005-01-05 | 深圳矽感科技有限公司 | Bar-code identifying-reading apparatus |
| CN2690981Y (en) * | 2004-03-17 | 2005-04-06 | 深圳矽感科技有限公司 | Non contact barcode reader |
| CN201548971U (en) * | 2009-10-26 | 2010-08-11 | 茂森科技股份有限公司 | Multi-wavelength barcode reader |
| CN201965629U (en) * | 2011-01-04 | 2011-09-07 | 茂森科技股份有限公司 | Vertical cavity surface emitting laser bar code scanner |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109388985A (en) * | 2017-08-10 | 2019-02-26 | 广州三码物联科技有限公司 | A kind of bimodulus two-dimensional code scanning device |
| CN107895133A (en) * | 2017-12-08 | 2018-04-10 | 苏州斯普锐智能系统有限公司 | A kind of desktop imaging type bar code scan equipment |
| CN107895133B (en) * | 2017-12-08 | 2024-03-08 | 苏州斯普锐智能系统股份有限公司 | Desktop imaging bar code scanning equipment |
| CN108932447A (en) * | 2018-07-25 | 2018-12-04 | 重庆骞纳马科技有限公司 | A kind of power construction managing security tools and instruments Handheld intelligent equipment and its control method |
| CN108932447B (en) * | 2018-07-25 | 2024-04-19 | 重庆楚颂教育科技有限公司 | Handheld intelligent equipment for electric power construction safety tools and control method thereof |
| WO2020098233A1 (en) * | 2018-11-15 | 2020-05-22 | 深圳盈达信息科技有限公司 | Scanning device, supplementary lighting lamp control system for same, and control method |
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Application publication date: 20170503 |