CN113297868B - Low-delay high-performance industrial code reading equipment based on edge calculation - Google Patents
Low-delay high-performance industrial code reading equipment based on edge calculation Download PDFInfo
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- CN113297868B CN113297868B CN202110560193.6A CN202110560193A CN113297868B CN 113297868 B CN113297868 B CN 113297868B CN 202110560193 A CN202110560193 A CN 202110560193A CN 113297868 B CN113297868 B CN 113297868B
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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
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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
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
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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
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/146—Methods for optical code recognition the method including quality enhancement steps
Abstract
The invention provides low-delay high-performance industrial code reading equipment based on edge calculation, which comprises an edge calculation unit, a control unit and a plurality of image acquisition units, wherein all images acquired by the image acquisition units comprise all bar codes to be scanned; the input end of the edge calculation unit is connected with the output ends of the image acquisition units to receive the image information transmitted by the image acquisition units, and the edge calculation unit processes the image information after receiving the image information transmitted by the image acquisition units to obtain bar code information; the input end of the control unit is connected with the output end of the edge calculation unit to acquire the bar code information, and the output end of the control unit is connected with the plurality of image acquisition units to control the plurality of image acquisition units to acquire the bar code images.
Description
Technical Field
The invention relates to the technical field of bar code reading, in particular to low-delay high-performance industrial code reading equipment based on edge calculation.
Background
Bar codes (bar codes for short) can be divided into one-dimensional bar codes and two-dimensional bar codes, wherein the one-dimensional bar codes are marks composed of a group of regularly arranged bars, spaces and corresponding characters, the bars refer to parts with low light reflectivity, the spaces refer to parts with high light reflectivity, and data composed of the bars and the spaces express certain information. The two-dimensional bar code is a new generation bar code technology for recording data symbol information by using a black and white rectangular matrix which is distributed on a plane (in a two-dimensional direction) according to a certain rule by using a specific geometric figure. Barcodes are increasingly used in everyday life and industrial applications, such as: the retail industry, the logistics industry and the financial industry have increasingly greater demands on the use of barcodes. The development of barcode technology is very rapid, and the development of barcode technology puts higher requirements on corresponding barcode scanning equipment.
At present, in industrial application, a plurality of bar codes may be arranged on one workpiece, when a single code scanning device is used for scanning codes, the problem of low operation efficiency exists, and when a plurality of code scanning devices among groups are used for scanning codes, the problems of long delay time among groups and slow transmission response exist. In order to solve these problems, it is necessary to develop a low-latency high-performance industrial code reader.
Disclosure of Invention
The invention aims to solve the problems of low operation efficiency, long delay time and slow transmission response of code scanning equipment in the prior art, and provides low-delay high-performance industrial code reading equipment based on edge calculation.
In order to achieve the purpose, the invention adopts the following technical scheme: a low-delay high-performance industrial code reading device based on edge calculation comprises an edge calculation unit, a control unit and a plurality of image acquisition units, wherein all images acquired by the plurality of image acquisition units comprise all bar codes to be scanned; the input end of the edge calculation unit is connected with the output ends of the image acquisition units to receive the image information transmitted by the image acquisition units, and the edge calculation unit processes the image information after receiving the image information transmitted by the image acquisition units to obtain bar code information; the input end of the control unit is connected with the output end of the edge calculation unit to acquire the bar code information, and the output end of the control unit is connected with the plurality of image acquisition units to control the plurality of image acquisition units to acquire the bar code images.
Preferably, the output end of the control unit is connected with the input end of the edge calculating unit to control the edge calculating unit to receive the image information transmitted by the plurality of image acquiring units.
Preferably, the code reading device further comprises a storage unit, and the input end of the storage unit is connected with the output end of the control unit so as to receive and store the bar code information.
Preferably, the plurality of image acquisition units are each a camera.
Preferably, the plurality of image acquisition units are all code readers. Furthermore, the output ends of the plurality of image acquisition units are connected with the input end of the control unit so as to transmit the successfully decoded bar code information to the control unit. Furthermore, the output end of the control unit is connected with the input ends of the plurality of image acquisition units so as to control the plurality of image acquisition units to stop decoding operation after receiving the bar code information transmitted by the edge calculation unit; the code reading equipment further comprises an alarm unit, wherein the input end of the alarm unit is connected with the output end of the control unit so as to send alarm information when the bar code information received by the control unit and transmitted by the plurality of image acquisition units cannot find corresponding information in the bar code information received by the control unit and transmitted by the edge calculation unit.
Compared with the prior art, the invention has the beneficial effects that: the plurality of image acquisition units are arranged, and all the images acquired by the plurality of image acquisition units contain all the bar codes to be scanned, so that the phenomenon of bar codes missing to be scanned is avoided; the image information acquired by the image acquisition units is integrated by the edge calculation unit, so that the operation efficiency and the bar code recognition rate are improved, and the problem of high time delay among groups is solved.
Drawings
FIG. 1 is a schematic structural diagram of an edge-computing-based low-latency high-performance industrial code reading device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a low-latency high-performance industrial code reading device based on edge calculation according to another embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a low-latency high-performance industrial code reading device based on edge calculation according to a third embodiment of the present invention;
fig. 4 is a schematic diagram of a plurality of image capturing units capturing image ranges according to an embodiment of the invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a low-latency high-performance industrial code reading apparatus based on edge calculation, which includes an edge calculation unit 1, a control unit 2 and a plurality of image acquisition units 3.
The plurality of image acquisition units 3 are configured to acquire barcode images, and all barcode images acquired by the plurality of image acquisition units 3 include all barcodes to be scanned. Referring to fig. 4, the number of the image capturing units 3 is 4 as an example, the 4 image capturing units 3 respectively capture barcode images of the areas I, II, III, and IV, and the 4 barcode images include all barcodes to be scanned, thereby avoiding missing barcode scanning. In practical applications, the barcode images acquired by the plurality of image acquiring units 3 may have overlapping regions.
The input end of the edge calculation unit 1 is connected with the output ends of the image acquisition units 3 to receive the barcode image information transmitted by the image acquisition units 3, the edge calculation unit 1 receives the image information transmitted by the image acquisition units 3 and processes the image information to obtain the barcode information, and the processing process comprises de-duplication splicing of the image information, decoding of the barcode in the image and the like.
The input end of the control unit 2 is connected with the output end of the edge calculation unit 1 to acquire barcode information, and the output end of the control unit 2 is connected with the plurality of image acquisition units 3 to control the plurality of image acquisition units 3 to acquire barcode images.
In a preferred embodiment, the output terminal of the control unit 2 is connected to the input terminal of the edge calculation unit 1, so as to control the edge calculation unit 1 to receive the image information transmitted by the plurality of image acquisition units 3, thereby preventing the edge calculation unit 1 from being in a receiving state all the time, and reducing power consumption.
Preferably, the code reading device further comprises a storage unit 4, and an input end of the storage unit 4 is connected with an output end of the control unit 2 to receive and store the bar code information.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a code reading apparatus according to an embodiment of the present invention, in the code reading apparatus, a plurality of image obtaining units 3 are cameras, each image obtaining unit 3 can only obtain a barcode image, and then transmits the respective barcode image to an edge calculating unit 1 for processing, the edge calculating unit 1 transmits barcode information obtained by processing to a control unit 2, and the control unit 2 transmits the barcode information to a storage unit 4.
Referring to fig. 2 and fig. 3, in the two embodiments, the plurality of image obtaining units 3 are all code readers, each image obtaining unit 3 can decode a complete barcode in the obtained barcode image, the output ends of the plurality of image obtaining units 3 are all connected with the input end of the control unit 2 to transmit successfully decoded barcode information to the control unit 2, the plurality of image obtaining units 3 further transmit the respective obtained barcode images to the edge calculating unit 1, the edge calculating unit 1 performs de-duplication and splicing on the received barcode images and decodes all barcodes, then the edge calculating unit 1 transmits the barcode information to the control unit 2, and the control unit 2 transmits the barcode information to the storage unit 4.
Referring to fig. 2, since the operation efficiency of a single code reader is lower than that of the edge calculation unit 1 for processing a more complex barcode (such as a two-dimensional code), in order to avoid that the edge calculation unit 1 has transmitted barcode information to the control unit 2 and some or all of the image acquisition units 3 have not completed decoding, in order to ensure efficiency, the output end of the control unit 2 is connected to the input ends of the image acquisition units 3, so as to control the image acquisition units 3 to stop decoding operation after receiving the barcode information transmitted by the edge calculation unit 1.
Referring to fig. 3, because the difference between the operation efficiency of a single code reader and the operation efficiency of the edge calculation unit 1 is not large for processing a simple barcode (such as a one-dimensional code), in order to enable that no corresponding information can be found in the barcode information transmitted to the control unit 2 by any image acquisition unit 3 in the barcode information transmitted to the control unit 2 by the edge calculation unit 1, that is, an alarm prompt is given when the decoding error exists in the image acquisition unit 3 or the edge calculation unit 1, the code reading apparatus further includes an alarm unit 5, and an input end of the alarm unit 5 is connected with an output end of the control unit 2.
According to the low-delay high-performance industrial code reader based on the edge calculation, the plurality of image acquisition units are arranged, and all images acquired by the plurality of image acquisition units comprise all bar codes to be scanned, so that the phenomenon of bar code scanning missing is avoided; the image information acquired by the image acquisition units is integrated by the edge calculation unit, so that the operation efficiency and the bar code recognition rate are improved, and the problem of high time delay among groups is solved.
The present invention has been described in relation to the above embodiments, which are only examples of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (2)
1. A low-latency high-performance industrial code reading device based on edge calculation is characterized by comprising:
the system comprises a plurality of image acquisition units, a plurality of scanning units and a plurality of scanning units, wherein all images acquired by the plurality of image acquisition units comprise all bar codes to be scanned, and all the image acquisition units are code readers;
the edge calculation unit receives the image information transmitted by the plurality of image acquisition units and then processes the image information to obtain bar code information, and the processing process comprises the steps of de-stitching the image information and decoding bar codes in the image;
the input end of the control unit is connected with the output end of the edge calculation unit to acquire bar code information, the output end of the control unit is connected with the image acquisition units to control the image acquisition units to acquire bar code images, the output end of the control unit is connected with the input end of the edge calculation unit to control the edge calculation unit to receive the image information transmitted by the image acquisition units, the output ends of the image acquisition units are all connected with the input end of the control unit to transmit the successfully decoded bar code information to the control unit, and the output end of the control unit is connected with the input ends of the image acquisition units to control the image acquisition units to stop decoding operation after receiving the bar code information transmitted by the edge calculation unit; and
and the input end of the alarm unit is connected with the output end of the control unit so as to send alarm information when the bar code information received by the control unit and transmitted by the plurality of image acquisition units cannot find corresponding information in the bar code information received by the control unit and transmitted by the edge calculation unit.
2. The edge-computing-based low-latency high-performance industrial code reading device according to claim 1, further comprising a storage unit, wherein an input of the storage unit is connected with an output of the control unit to receive and store barcode information.
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| 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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