CN110557517A - Double-camera two-dimensional scanning device and control method - Google Patents
Double-camera two-dimensional scanning device and control method Download PDFInfo
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- CN110557517A CN110557517A CN201910881376.0A CN201910881376A CN110557517A CN 110557517 A CN110557517 A CN 110557517A CN 201910881376 A CN201910881376 A CN 201910881376A CN 110557517 A CN110557517 A CN 110557517A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00249—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a photographic apparatus, e.g. a photographic printer or a projector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00326—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a data reading, recognizing or recording apparatus, e.g. with a bar-code apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/95—Computational photography systems, e.g. light-field imaging systems
- H04N23/957—Light-field or plenoptic cameras or camera modules
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- Computing Systems (AREA)
- Theoretical Computer Science (AREA)
- Studio Devices (AREA)
- Stereoscopic And Panoramic Photography (AREA)
Abstract
The invention discloses a double-camera two-dimensional scanning device, which belongs to the technical field of two-dimensional scanning and mainly solves the technical problem that the scanning depth of field is close when the scanning angle of the conventional two-dimensional scanning equipment is larger. The invention also discloses a two-dimensional scanning control method for the double cameras. The invention has large scanning angle and deep scanning scene.
Description
Technical Field
the invention relates to the technical field of two-dimensional scanning, in particular to a two-camera two-dimensional scanning device and a control method.
Background
Two-dimensional scanning equipment on the market is single camera equipment at present. The scanning angle and the scanning depth of field of the scanning equipment with a single camera are basically fixed, and when the scanning angle is larger, the scanning depth of field is closer, so that the problems of poor scanning precision, low speed and even incapability of scanning are caused. This is a common problem with single-camera two-dimensional scanning devices.
Disclosure of Invention
the present invention is directed to a two-dimensional scanning device with two cameras, which has a large scanning angle and a long scanning range.
The invention also aims to provide a two-dimensional scanning control method with two cameras and large scanning angle and long scanning depth.
In order to achieve the first purpose, the invention provides a two-camera two-dimensional scanning device, which comprises a shell, wherein a first camera, a second camera and an MCU electrically connected with the first camera and the second camera are respectively arranged in the shell, the wide angle of the first camera is larger than that of the second camera, the depth of field of the first camera is smaller than that of the second camera, and a first opening and a second opening which respectively correspond to the first camera and the second camera are arranged on the same side wall of the shell.
As a further improvement, the first camera and the second camera are arranged in a vertically spaced or horizontally spaced mode.
further, the wide angle of the first camera is larger than 70 degrees, and the depth of field of the first camera is 30-300 mm.
further, the wide angle of the second camera is smaller than 60 degrees, and the depth of field of the second camera is 250-900 mm.
further, the first camera and the second camera are both black and white cameras.
In order to achieve the second objective, the invention provides a two-dimensional scanning control method for two cameras, which comprises the following steps:
S1, a first camera shoots a bar code to obtain a first bar code image and sends the first bar code image to an MCU (microprogrammed control unit), and a second camera shoots the bar code to obtain a second bar code image and sends the second bar code image to the MCU;
S2, the MCU respectively analyzes the first bar code image and the second bar code image; if the first barcode image is analyzed to obtain a first barcode content and the second barcode image is analyzed to obtain a second barcode content, jumping to step S3; if the first barcode image is analyzed to obtain the first barcode content and the second barcode image is analyzed unsuccessfully, jumping to step S5; if the first barcode image fails to be analyzed and the second barcode image is analyzed to obtain second barcode content, jumping to step S6; otherwise, the failure times are added with 1 and the step S4 is skipped;
s3, if the first barcode content is consistent with the second barcode content, outputting the first barcode content, setting the failure times to be 0, and finishing scanning the barcode; otherwise, go to step S4;
S4, if the failure times are larger than the set times, outputting a failure signal, setting the failure times to be 0, and finishing code scanning; otherwise, adding 1 to the failure times, changing the exposure parameters of the first camera and the second camera, and jumping to the step S1;
s5, outputting the first bar code content, setting the failure times to be 0, and finishing code scanning;
And S6, outputting the second bar code content, setting the failure times to be 0, and finishing code scanning.
As a further improvement, in the step S2, when the time for analyzing the single barcode image exceeds the set time, the analysis of the barcode image fails.
Advantageous effects
Compared with the prior art, the invention has the advantages that: according to the invention, the first camera and the second camera are arranged, the first camera is used for obtaining the barcode image with a large wide angle and a near field depth, the second camera is used for obtaining the barcode image with a small wide angle and a far field depth, and the MCU respectively analyzes and compares the two barcode images and outputs the barcode content.
Drawings
FIG. 1 is a schematic front view of the present invention;
Fig. 2 is a schematic perspective view of the present invention.
wherein: 1-shell, 2-first camera, 3-second camera, 4-first opening and 5-second opening.
Detailed Description
the invention will be further described with reference to specific embodiments shown in the drawings.
Referring to fig. 1-2, a two-camera two-dimensional scanning device, including casing 1, be equipped with first camera 2 in the casing 1 respectively, second camera 3 and the MCU of electricity connection first camera 2, second camera 3, the wide angle of first camera 2 is greater than the wide angle of second camera 3, the depth of field of first camera 2 is less than the depth of field of second camera 3, the same lateral wall of casing 1 is equipped with first trompil 4, the second trompil 5 that corresponds with first camera 2, second camera 3 position respectively.
in this embodiment, a structure of vertical interval arrangement or horizontal interval arrangement is adopted between the first camera 2 and the second camera 3, and the interval between the first camera 2 and the second camera 3 is 10-30 mm. The wide angle of the first camera 2 is larger than 70 degrees, the depth of field of the first camera 2 is 30-300 mm, and the first camera is used for acquiring a barcode image with a large wide angle and a short depth of field, such as a barcode image in an A1 area. The wide angle of the second camera 3 is less than 60 degrees, the depth of field of the second camera 3 is 250-900 mm, and the second camera is used for acquiring a barcode image with a small wide angle and a long depth of field, such as a barcode image in an A2 area.
In this embodiment, first camera 2, second camera 3 are black and white cameras, and it is high to gather image stability, and the MCU of being convenient for carries out the analysis.
A two-dimensional scanning control method for double cameras comprises the following steps:
S1, a first camera 2 shoots a bar code to obtain a first bar code image and sends the first bar code image to an MCU (microprogrammed control unit), and a second camera 3 shoots a bar code to obtain a second bar code image and sends the second bar code image to the MCU;
s2, the MCU respectively analyzes the first bar code image and the second bar code image; if the first barcode image is analyzed to obtain the first barcode content and the second barcode image is analyzed to obtain the second barcode content, jumping to step S3; if the first barcode content is obtained by analyzing the first barcode image and the second barcode image fails to be analyzed, jumping to step S5; if the first barcode image fails to be analyzed and the second barcode image is analyzed to obtain the second barcode content, jumping to step S6; otherwise, the failure times are added with 1 and the step S4 is skipped;
S3, if the first bar code content is consistent with the second bar code content, outputting the first bar code content, setting the failure times to be 0, and finishing code scanning; otherwise, go to step S4;
s4, if the failure times are larger than the set times, outputting a failure signal, setting the failure times to be 0, and finishing code scanning, wherein the set times can be 3-5 times; otherwise, adding 1 to the failure times, changing the exposure parameters of the first camera 2 and the second camera 3, and jumping to the step S1;
s5, outputting the first bar code content, setting the failure times to be 0, and finishing code scanning;
And S6, outputting the second bar code content, setting the failure times to be 0, and finishing code scanning.
In step S2, when the time for analyzing the single barcode image exceeds the set time, the barcode image fails to be analyzed, and the set time may be 0.1 to 0.5 seconds.
According to the invention, the first camera and the second camera are arranged, the first camera is used for obtaining the barcode image with a large wide angle and a near field depth, the second camera is used for obtaining the barcode image with a small wide angle and a far field depth, and the MCU respectively analyzes and compares the two barcode images and outputs the barcode content.
the above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (7)
1. The utility model provides a two camera two-dimensional scanning device, includes casing (1), its characterized in that, be equipped with first camera (2), second camera (3) and electricity respectively in casing (1) and connect the MCU of first camera (2), second camera (3), the wide angle of first camera (2) is greater than the wide angle of second camera (3), the depth of field of first camera (2) is less than the depth of field of second camera (3), the same lateral wall of casing (1) be equipped with respectively with first trompil (4), second trompil (5) that first camera (2), second camera (3) position correspond.
2. A two-camera two-dimensional scanning device according to claim 1, wherein the first camera (2) and the second camera (3) are vertically or horizontally spaced.
3. a two-camera two-dimensional scanning device according to claim 1, wherein the wide angle of the first camera (2) is greater than 70 °, and the depth of field of the first camera (2) is 30-300 mm.
4. A two-camera two-dimensional scanning device according to claim 1, wherein the wide angle of the second camera (3) is less than 60 °, and the depth of field of the second camera (3) is 250-900 mm.
5. a dual-camera two-dimensional scanning device according to any one of claims 1 to 4, wherein the first camera (2) and the second camera (3) are both black and white cameras.
6. a two-dimensional scanning control method for double cameras is characterized by comprising the following steps:
S1, a first camera (2) shoots a bar code to obtain a first bar code image and sends the first bar code image to an MCU (microprogrammed control unit), and a second camera (3) shoots the bar code to obtain a second bar code image and sends the second bar code image to the MCU;
S2, the MCU respectively analyzes the first bar code image and the second bar code image; if the first barcode image is analyzed to obtain a first barcode content and the second barcode image is analyzed to obtain a second barcode content, jumping to step S3; if the first barcode image is analyzed to obtain the first barcode content and the second barcode image is analyzed unsuccessfully, jumping to step S5; if the first barcode image fails to be analyzed and the second barcode image is analyzed to obtain second barcode content, jumping to step S6; otherwise, the failure times are added with 1 and the step S4 is skipped;
S3, if the first barcode content is consistent with the second barcode content, outputting the first barcode content, setting the failure times to be 0, and finishing scanning the barcode; otherwise, go to step S4;
S4, if the failure times are larger than the set times, outputting a failure signal, setting the failure times to be 0, and finishing code scanning; otherwise, adding 1 to the failure times, changing the exposure parameters of the first camera (2) and the second camera (3) and jumping to the step S1;
S5, outputting the first bar code content, setting the failure times to be 0, and finishing code scanning;
And S6, outputting the second bar code content, setting the failure times to be 0, and finishing code scanning.
7. The dual-camera two-dimensional scan control method according to claim 6, wherein in the step S2, when the time for resolving the single barcode image exceeds a set time, the resolving of the barcode image fails.
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| CN201910881376.0A CN110557517A (en) | 2019-09-18 | 2019-09-18 | Double-camera two-dimensional scanning device and control method |
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| CN201910881376.0A CN110557517A (en) | 2019-09-18 | 2019-09-18 | Double-camera two-dimensional scanning device and control method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113378596A (en) * | 2021-05-19 | 2021-09-10 | 深圳市民德电子科技股份有限公司 | Bar code reading device based on at least two cameras |
| CN114564976A (en) * | 2022-01-26 | 2022-05-31 | 苏州摩比信通智能系统有限公司 | Code scanning method of double-camera code scanning engine |
| CN114667729A (en) * | 2020-01-08 | 2022-06-24 | 核心光电有限公司 | Porous zoom digital camera and use method thereof |
| CN114662512A (en) * | 2022-04-06 | 2022-06-24 | 苏州摩比信通智能系统有限公司 | Code scanning method of double-camera code scanning engine |
| CN114722849A (en) * | 2022-04-06 | 2022-07-08 | 苏州摩比信通智能系统有限公司 | Code scanning method of double-camera code scanning engine |
| WO2022241685A1 (en) * | 2021-05-19 | 2022-11-24 | 深圳市民德电子科技股份有限公司 | Barcode reading apparatus based on at least two cameras |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114667729A (en) * | 2020-01-08 | 2022-06-24 | 核心光电有限公司 | Porous zoom digital camera and use method thereof |
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| WO2022241685A1 (en) * | 2021-05-19 | 2022-11-24 | 深圳市民德电子科技股份有限公司 | Barcode reading apparatus based on at least two cameras |
| CN114564976A (en) * | 2022-01-26 | 2022-05-31 | 苏州摩比信通智能系统有限公司 | Code scanning method of double-camera code scanning engine |
| CN114662512A (en) * | 2022-04-06 | 2022-06-24 | 苏州摩比信通智能系统有限公司 | Code scanning method of double-camera code scanning engine |
| CN114722849A (en) * | 2022-04-06 | 2022-07-08 | 苏州摩比信通智能系统有限公司 | Code scanning method of double-camera code scanning engine |
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