CN106778423A - Stabilization bar code scanner - Google Patents
Stabilization bar code scanner Download PDFInfo
- Publication number
- CN106778423A CN106778423A CN201611269246.4A CN201611269246A CN106778423A CN 106778423 A CN106778423 A CN 106778423A CN 201611269246 A CN201611269246 A CN 201611269246A CN 106778423 A CN106778423 A CN 106778423A
- Authority
- CN
- China
- Prior art keywords
- laser
- bar code
- rotating mirror
- scanner
- reflecting rotating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- 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)
- Mechanical Optical Scanning Systems (AREA)
Abstract
A kind of stabilization bar code scanner of present invention offer, including the light source of linear laser can be produced, and by motor-driven atwirl reflecting rotating mirror；The reflecting rotating mirror has circumferential uniform tilting mirrors, in quick rotary course, one section of laser line segment is formed in outside body surface after the linear laser is reflected；The scanner also includes the daylighting camera lens and the photoelectric encoder at daylighting camera lens rear towards the laser line segment；There is 1 ~ 5 ° of angle between the geometrical axis and rotation axis of the reflecting rotating mirror.The scanner can be under hand dither state, and normal scan simultaneously recognizes bar code, so as to reduce scanning difficulty, improves scan efficiency.
Description
Technical field
The present invention relates to digital testing equipment field, especially, it is related to a kind of bar code scanner.
Background technology
At present, in fields such as logistics, commodity signs, widely used bar shaped code labeling；And when bar code is read, generally adopt
Use laser bar code scanner.Traditional laser bar code scanner can produce linear laser as shown in figure 1, including one inside it
Light source 1, the linear laser be irradiated to one inside scanner driven by motor, on atwirl reflecting rotating mirror 2, this is anti-
Penetrating tilting mirror 2 has circumferential uniform tilting mirrors 21, so that in quick rotary course, after the linear laser is reflected outside
Portion's body surface forms a laser horizontal line as shown in empty horizontal line.The laser bar code scanner traditional for this kind, due to anti-
The geometrical axis l1 for penetrating tilting mirror 2 is completely superposed with shaft axis, therefore the laser horizontal line for obtaining is reflected via reflecting rotating mirror 2
With superfine width, the linear laser equal diameters for substantially being produced with light source 1.Thus, sweep being completely fixed laser bar code
In the case of retouching device, bar code reflected ray that the laser horizontal line is formed after bar code is irradiated to as shown in Fig. 2 for a string by
The phantom line segments that light and shade strigula joins together；The phantom line segments can obtain bar code information via after decoder for decoding.However,
Scanner shake in the case of, the bar code reflected ray that the laser horizontal line is formed after bar code is irradiated to just as shown in figure 3,
Each light and shade strigula is uneven, it is impossible to be linked to be phantom line segments, causes decoder to be difficult to normal decoding, so as to cause bar code scanning
It is obstructed.As can be seen here, for traditional laser bar code scanner, operation requires of a relatively high, the hand shake of gripping scanner
When, normal scan is just difficult to,, for new hand or for the staff for needing to be scanned in movement environment, scanning is imitated for this
Rate is limited by larger.
The content of the invention
Regarding to the issue above, it is an object of the invention to provide a kind of stabilization bar code scanner, the scanner can be with
Under hand dither state, normal scan simultaneously recognizes bar code, so as to reduce scanning difficulty, improves scan efficiency.
The technical proposal for solving the technical problem of the invention is：The stabilization bar code scanner includes to produce directly
The light source of line laser, and by motor-driven atwirl reflecting rotating mirror；The reflecting rotating mirror inclines with circumferentially uniform
Oblique mirror, in quick rotary course, one section of laser line segment is formed in outside body surface after the linear laser is reflected；
The scanner also includes the daylighting camera lens and the photoelectric encoder at daylighting camera lens rear towards the laser line segment；It is described anti-
Penetrating between the geometrical axis of tilting mirror and rotation axis has 1 ~ 5 ° of angle.
The beneficial effects of the present invention are：The stabilization bar code scanner operationally, due to the reflecting rotating mirror
There is 1 ~ 5 ° of angle between geometrical axis and rotation axis；After causing the linear laser to be reflected via reflecting rotating mirror, not only
The laser line segment is transversely formed in bar coded sticker, and in the longitudinal direction of bar coded sticker（That is, the longitudinal direction product of bar code
Raw displacement）, i.e. laser rays is radiated in one piece of flat rectangular area of bar code, because reflecting rotating mirror is quick rotation
, therefore laser rays high-speed motion in the flat rectangular area, form a flat rectangular laser block；In the case, due to hand
The side-play amount of formed laser rays is shaken in portion, will all be covered by the flat rectangular laser block in most cases, so that base
Originally eliminate due to the scanning obstacle caused by shake, scan efficiency can be greatly improved under shake or motion state.
Brief description of the drawings
Fig. 1 is the scanning theory schematic diagram of conventional barcode scanners.
Fig. 2 is conventional barcode scanners bar code reflected ray schematic diagram resulting under static state.
Fig. 3 is the resulting bar code reflected ray schematic diagram under dither state of conventional barcode scanners.
Fig. 4 is the scanning theory schematic diagram of this stabilization bar code scanner.
Fig. 5 is the bar code reflected ray schematic diagram of this stabilization bar code scanner.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples：
In the embodiment shown in fig. 4, this stabilization bar code scanner includes producing the light source 1, Yi Jiyou of linear laser
Motor-driven atwirl reflecting rotating mirror 2；The reflecting rotating mirror 2 has circumferential uniform tilting mirrors 21, with quick
In rotary course, one section of laser line segment is formed in outside body surface after the linear laser is reflected；The scanner is also wrapped
Include the daylighting camera lens towards the laser line segment（It is not shown）And the photoelectric encoder at daylighting camera lens rear（It is not shown）；It is described
There is 1 ~ 5 ° of angle between the geometrical axis l1 and rotation axis l2 of reflecting rotating mirror 2.
According to the embodiment, due to having 1 ~ 5 ° between the geometrical axis l1 and rotation axis l2 of the reflecting rotating mirror 2
Angle；After causing the linear laser to be reflected via reflecting rotating mirror, not only being transversely formed by light and shade hyphen in bar coded sticker
The laser line segment that line joins together, and in the longitudinal direction of bar coded sticker（That is, the longitudinal direction of bar code produces displacement）, i.e. make laser
Line is radiated in the one piece of flat rectangular area across bar code as shown in dotted line frame in Fig. 4, because reflecting rotating mirror 2 is quick rotation
Turn, therefore laser rays high-speed motion in the flat rectangular area, form a flat rectangular laser block；Generally, be exactly by
In the reflecting rotating mirror 2 be slight inclination, so as to continuously regularly being rocked in rotary course, so that original fine rule shape is sharp
Light line segment is gelatinized, and forms flat bar laser line segment, the flat bar laser line segment and is formed as shown in figure 5, being joined together by light and shade hyphen bar.
In the case, the side-play amount of formed laser rays is shaken by hand, in most cases all will be by institute
Flat bar laser line segment is stated to be covered（The flat bar laser line segment can be regarded as quickly being moved by LASER SPECKLE the spot for being formed
Cloud sector, can be analogous to the electron cloud in atom；Only at LASER SPECKLE in the outer edge in spot cloud sector, scanner is produced again
During outside shake, LASER SPECKLE can be just set to run out of the coverage of the flat bar laser line segment, in most cases,
It is entirely covered）, so as to essentially eliminate due to the scanning obstacle caused by shake, can be greatly improved under shake or motion state
Scan efficiency.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, the equivalent made should be included within the scope of the present invention.
Claims (1)
1. a kind of stabilization bar code scanner；It is characterized in that：Light source including linear laser can be produced（1）, and by electricity
The atwirl reflecting rotating mirror that machine drives（2）；The reflecting rotating mirror（2）With circumferential uniform tilting mirrors（21）, with
In quick rotary course, one section of laser line segment is formed in outside body surface after the linear laser is reflected；The scanner
Also include the daylighting camera lens and the photoelectric encoder at daylighting camera lens rear towards the laser line segment；The reflecting rotating mirror（2）
Geometrical axis（l1）With rotation axis（l2）Between there is 1 ~ 5 ° of angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611269246.4A CN106778423A (en) | 2016-12-31 | 2016-12-31 | Stabilization bar code scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611269246.4A CN106778423A (en) | 2016-12-31 | 2016-12-31 | Stabilization bar code scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106778423A true CN106778423A (en) | 2017-05-31 |
Family
ID=58952584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611269246.4A Pending CN106778423A (en) | 2016-12-31 | 2016-12-31 | Stabilization bar code scanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106778423A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111639506A (en) * | 2020-05-29 | 2020-09-08 | 天津维创微智能科技有限公司 | Method and device for positioning bar code in image and code scanning equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0348232A2 (en) * | 1988-06-24 | 1989-12-27 | Fujitsu Limited | Optical beam scanner for reading bar-codes |
| CN2629133Y (en) * | 2003-06-04 | 2004-07-28 | 巨豪实业股份有限公司 | Multidirectional laser bar code scanner pushing and receiving apparatus |
| CN103760669A (en) * | 2014-02-18 | 2014-04-30 | 苏州德沃智能***有限公司 | Multi-faced rotary prism motor device for laser scanning device |
| CN103761501A (en) * | 2014-02-18 | 2014-04-30 | 苏州德沃智能***有限公司 | Laser bar code scanning device |
| CN204946026U (en) * | 2015-09-17 | 2016-01-06 | 赫盛光电（上海）有限公司 | A kind of bar code rapid scanning device |
-
2016
- 2016-12-31 CN CN201611269246.4A patent/CN106778423A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0348232A2 (en) * | 1988-06-24 | 1989-12-27 | Fujitsu Limited | Optical beam scanner for reading bar-codes |
| CN2629133Y (en) * | 2003-06-04 | 2004-07-28 | 巨豪实业股份有限公司 | Multidirectional laser bar code scanner pushing and receiving apparatus |
| CN103760669A (en) * | 2014-02-18 | 2014-04-30 | 苏州德沃智能***有限公司 | Multi-faced rotary prism motor device for laser scanning device |
| CN103761501A (en) * | 2014-02-18 | 2014-04-30 | 苏州德沃智能***有限公司 | Laser bar code scanning device |
| CN204946026U (en) * | 2015-09-17 | 2016-01-06 | 赫盛光电（上海）有限公司 | A kind of bar code rapid scanning device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111639506A (en) * | 2020-05-29 | 2020-09-08 | 天津维创微智能科技有限公司 | Method and device for positioning bar code in image and code scanning equipment |
| CN111639506B (en) * | 2020-05-29 | 2023-07-04 | 天津维创微智能科技有限公司 | Positioning method and device for bar codes in image and code scanning equipment |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |