CN112507747A - Tracing code scanning device and method - Google Patents
Tracing code scanning device and method Download PDFInfo
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- CN112507747A CN112507747A CN202011456785.5A CN202011456785A CN112507747A CN 112507747 A CN112507747 A CN 112507747A CN 202011456785 A CN202011456785 A CN 202011456785A CN 112507747 A CN112507747 A CN 112507747A
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- 230000000007 visual effect Effects 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 description 3
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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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- 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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Abstract
The invention provides a tracing code scanning device and method, which are used for solving the problems of low decoding efficiency, low reading rate and insufficient accuracy in the prior art. The device comprises: the device comprises an electric eye, a vision camera and industrial control equipment, wherein the vision camera and the industrial control equipment are respectively connected with the electric eye, the vision camera is connected with the industrial control equipment, and the industrial control equipment is also connected with a picture decoding server. The method comprises the following steps: s1, when the electric eye detects that an article passes through, respectively sending a trigger signal to the visual camera and the industrial control equipment; s2, the vision camera receives the trigger signal sent by the electric eye and continuously takes pictures and sends the pictures to the industrial control equipment; s3, after receiving the trigger signal sent by the electric eye, the industrial control equipment receives the picture sent by the visual camera and forwards the received picture to the picture decoding server; and S4, the picture decoding server receives the picture sent by the industrial control equipment, decodes the picture and returns the decoding result to the industrial control equipment.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of code assigning technology and automatic control of equipment, in particular to a device and a method for tracing code scanning.
[ background of the invention ]
Traditional one-dimensional code/two-dimensional code reads, relies on the electric eye that is the vision code reader to trigger the vision code reader and uses built-in device or chip to decode, has the decoding efficiency low, and the reading rate is not high, shortcoming such as the degree of accuracy is not enough. The electric eye as above: i.e., a photosensor, a device that can convert an optical signal into an electrical signal. The visual code reader comprises: the one-dimensional code/two-dimensional code is arranged according to a certain coding rule and is used for expressing a graphical identifier of a group of information. The RFID technology is mainly used for tracking and tracing products, production control and automatic identification, and particularly forms one of hardware systems of the Internet of things together with the emerging RFID technology.
[ summary of the invention ]
The invention provides a tracing code scanning device and method, which are used for solving the problems of low decoding efficiency, low reading rate and insufficient accuracy in the prior art.
The invention discloses a tracing code scanning device, which comprises: the system comprises an electric eye, a visual camera and industrial control equipment, wherein the visual camera and the industrial control equipment are respectively connected with the electric eye, the visual camera is connected with the industrial control equipment, and the industrial control equipment is also connected with a picture decoding server; the electric eye is used for detecting the passing of an article and respectively sending a trigger signal to the visual camera and the industrial control equipment; the vision camera is used for continuously taking pictures after receiving the trigger signal sent by the electric eye and sending the pictures to the industrial control equipment; the industrial control equipment is used for receiving the pictures sent by the visual camera after receiving the trigger signal sent by the electric eye and forwarding the received pictures to the picture decoding server; and the picture decoding server is used for receiving the picture sent by the industrial control equipment, decoding the picture and returning a decoding result to the industrial control equipment.
Wherein the industrial control apparatus includes: the serial number generating unit is used for generating a unique serial number when receiving the trigger signal sent by the electric eye; a marking unit for marking pictures received from the visual camera at the same time as the unique serial number; and the memory unit is used for storing the pictures marked as the unique serial numbers.
Further, the industrial control device forwards the picture marked as the unique serial number to the picture decoding server.
Further, the picture decoding server includes: the decoding unit is used for decoding all code information in the picture and forming a bar code data queue; and the decoding result generating unit is used for marking the unique serial number for the bar code data queue and generating the decoding result.
Further, the industrial control apparatus further includes: the identification unit is used for identifying the corresponding relation between the decoding result and the picture according to the comparison between the unique serial number marked in the decoding result and the unique serial number marked by the picture stored in the memory unit; and the data replacement unit is used for taking unrepeated bar code data in the bar code data queue and replacing the picture with the unrepeated bar code data.
The invention discloses a tracing code scanning method, which comprises the following steps: s1, when the electric eye detects that an article passes through, respectively sending a trigger signal to the visual camera and the industrial control equipment; s2, the vision camera receives the trigger signal sent by the electric eye and continuously takes pictures, and sends the pictures to the industrial control equipment; s3, after receiving the trigger signal sent by the electric eye, the industrial control equipment receives the picture sent by the visual camera and forwards the received picture to a picture decoding server; and S4, the picture decoding server receives the picture sent by the industrial control equipment, decodes the picture and returns the decoding result to the industrial control equipment.
Wherein, step S3 further includes: when the industrial control equipment receives the trigger signal sent by the electric eye, a unique serial number is generated; tagging pictures received simultaneously from the visual camera as the unique serial number; saving the picture marked as the unique serial number.
Further, in step S3, the industrial control device forwards the picture marked as the unique serial number to the picture decoding server.
Further, step S4 includes: the picture decoding server decodes all code information in the picture and forms a bar code data queue; and marking the unique serial number for the bar code data queue to generate the decoding result.
Further, the method also comprises the following steps: s5, the industrial control equipment identifies the corresponding relation between the decoding result and the picture according to the comparison between the unique serial number marked in the decoding result and the unique serial number marked in the stored picture; s6, taking unrepeated bar code data in the bar code data queue, and replacing the picture with the unrepeated bar code data.
The device and the method for scanning the tracing code are an integrated solution based on the Internet of things, the Internet and the image recognition field, have high reliability, high expansibility and high availability, can quickly improve and adjust the reading rate of the one-dimensional code/two-dimensional code, and are effectively applied to production and collection environments with high requirements in the industries of medicines, fast-moving products and dairy products. The device and the method of the invention can improve the traditional acquisition rate by more than 10 percent.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a trace back code scanning apparatus according to embodiment 1 of the present invention;
fig. 2 is a flowchart of a method for scanning a traceback code according to embodiment 2 of the present invention.
[ detailed description ] embodiments
Embodiment 1, the apparatus for scanning a traceback code of this embodiment, as shown in fig. 1, includes: an electric eye 11, a vision camera 12 and an industrial control device 13 connected to the electric eye 11, respectively, the vision camera 12 being connected to the industrial control device 13, and the industrial control device 13 being further connected to a picture decoding server 14. More specifically, the industrial control device 13 includes: a serial number generating unit 131, a marking unit 132, a memory unit 133, an identifying unit 134, and a data replacing unit 135; picture decoding server 14 includes therein: a decoding unit 141 and a decoding result generating unit 142.
The electric eye 11 is used for detecting the passing of the articles, and when the articles pass, trigger signals are respectively sent to the vision camera 12 and the industrial control equipment 13. The vision camera 12 receives the trigger signal sent by the electric eye 11 and then continuously takes pictures, so that more samples can be collected to ensure the reading rate of subsequent bar codes, and the pictures are sent to the industrial control equipment 13. After the industrial control device 13 receives the trigger signal sent by the electric eye 11, the serial number generating unit 131 generates a unique serial number, for example: 0D3a53E0-5691-4F46-8E6D-63DC11D4687F, the industrial control device 13 receives pictures, in this embodiment a plurality of pictures (the visual camera 12 continuously takes pictures), from the visual camera 12 at the same time, the marking unit 132 marks the received pictures as the unique serial number 0D3a53E0-5691-4F46-8E6D-63DC11D4687F generated by the serial number generating unit 131, and the memory unit 133 holds the pictures marked as the unique serial number 0D3a53E0-5691-4F46-8E6D-63DC11D 4687F. The industrial control device 13 then forwards the picture marked as the unique serial number 0D3A53E0-5691-4F46-8E6D-63DC11D4687F to the picture decoding server 14. The picture decoding server 14 receives the picture sent by the industrial control device 13, and the decoding unit 141 decodes all code information in all pictures, specifically, barcodes such as one-dimensional codes/two-dimensional codes or variable codes, and forms a barcode data queue. The decoding result generating unit 142 marks the unique serial number 0D3a53E0-5691-4F46-8E6D-63DC11D4687F for the barcode data queue, and generates a decoding result, such as: 0D3A53E0-5691-4F46-8E6D-63DC11D 4687F: barcode1, barcode2, barcode3, barcode4 …. The decoded result is then returned to the industrial control device 13. After the industrial control device 13 receives the decoding result, the identification unit 134 compares the unique serial number 0D3A53E0-5691-4F46-8E6D-63DC11D4687F marked in the decoding result with the unique serial number 0D3A53E0-5691-4F46-8E6D-63DC11D4687F marked in the picture stored in the memory unit 133, and identifies the corresponding relationship between the decoding result and the picture. Since the vision camera 12 continuously takes pictures, some of the code information in the multiple pictures received and forwarded by the industrial control device 13 is repeated, but the reading rate is ensured, and finally, the data replacement unit 135 takes unrepeated barcode data in the barcode data queue, for example: the barcode1, barcode2, barcode3, barcode4 are non-repeating barcode data, replacing the non-repeating barcode data with a picture labeled 0D3a53E0-5691-4F46-8E6D-63DC11D 4687F. Thus, the reading of the data of the bar codes or the variable codes such as the whole one-dimensional codes/two-dimensional codes is completed, and the read data are the bar code1, the bar code2, the bar code3 and the bar code 4.
In conclusion, the device for scanning the traceable codes of the embodiment has high reliability, high expansibility and high availability, and can quickly improve and adjust the reading rate of the one-dimensional codes/two-dimensional codes.
Embodiment 2, the method for scanning the traceback code of this embodiment, as shown in fig. 2, includes the following steps:
and S21, when the electric eye detects that the article passes by, respectively sending a trigger signal to the visual camera and the industrial control equipment.
And S22, the vision camera receives the trigger signal sent by the electric eye and then continuously takes pictures, so that more samples can be collected to ensure the reading rate of the subsequent bar codes and the pictures are sent to the industrial control equipment.
And S23, after receiving the trigger signal sent by the electric eye, the industrial control equipment receives the picture sent by the visual camera and forwards the received picture to the picture decoding server.
Specifically, after receiving a trigger signal sent by an electric eye, the industrial control device generates a unique serial number, for example: 0D3a53E0-5691-4F46-8E6D-63DC11D4687F while receiving pictures from the visual camera, in this embodiment a plurality of pictures (the visual camera continuously takes pictures), the industrial control device marks the received pictures as unique serial number 0D3a53E0-5691-4F46-8E6D-63DC11D4687F, and saves the pictures marked as unique serial number 0D3a53E0-5691-4F46-8E6D-63DC11D 4687F. The industrial control device then forwards the picture marked as the unique serial number 0D3A53E0-5691-4F46-8E6D-63DC11D4687F to the picture decoding server.
And S24, the picture decoding server receives the picture sent by the industrial control equipment, decodes the picture and returns the decoding result to the industrial control equipment.
Specifically, the picture decoding server receives a picture sent by the industrial control equipment, decodes all code information in all the pictures, specifically can be barcodes such as one-dimensional codes/two-dimensional codes or variable codes, and forms a barcode data queue. The picture decoding server marks the unique serial number 0D3A53E0-5691-4F46-8E6D-63DC11D4687F for the barcode data queue, and generates a decoding result, such as: 0D3A53E0-5691-4F46-8E6D-63DC11D 4687F: barcode1, barcode2, barcode3, barcode4 …. The decoded result is then returned to the industrial control device.
And S25, the industrial control equipment identifies the corresponding relation between the decoding result and the picture according to the comparison between the unique serial number marked in the decoding result and the unique serial number marked in the stored picture.
Specifically, after receiving the decoding result, the industrial control device compares the unique serial number 0D3A53E0-5691-4F46-8E6D-63DC11D4687F marked in the decoding result with the stored unique serial number 0D3A53E0-5691-4F46-8E6D-63DC11D4687F marked in the picture to identify the corresponding relation between the decoding result and the picture.
And S26, taking unrepeated bar code data in the bar code data queue, and replacing the picture with the unrepeated bar code data.
Specifically, because the visual camera continuously takes pictures, some code information in a plurality of pictures received and forwarded by the industrial control equipment is repeated, but the reading rate is ensured, and finally unrepeated bar code data in the bar code data queue is obtained, for example: the barcode1, barcode2, barcode3, barcode4 are non-repeating barcode data, replacing the non-repeating barcode data with a picture labeled 0D3a53E0-5691-4F46-8E6D-63DC11D 4687F. Thus, the reading of the data of the bar codes or the variable codes such as the whole one-dimensional codes/two-dimensional codes is completed, and the read data are the bar code1, the bar code2, the bar code3 and the bar code 4.
In summary, the method for scanning the traceable code of the embodiment has high reliability, high expansibility and high availability, and can quickly improve and adjust the reading rate of the one-dimensional code/the two-dimensional code.
The description and use of the invention herein are illustrative and exemplary only, and are not intended to limit the scope of the invention to the embodiments described above. Variations and modifications of the embodiments disclosed herein are fully possible, and alternative and equivalent various components of the embodiments are well known to those skilled in the art. It will also be apparent to those skilled in the art that the present invention may be embodied in other forms, structures, arrangements, proportions, and with other components, materials, and parts, and that other modifications and variations of the embodiments disclosed herein, without departing from the spirit or essential characteristics thereof.
Claims (10)
1. An apparatus for tracing back code scanning, comprising: the system comprises an electric eye, a visual camera and industrial control equipment, wherein the visual camera and the industrial control equipment are respectively connected with the electric eye, the visual camera is connected with the industrial control equipment, and the industrial control equipment is also connected with a picture decoding server;
the electric eye is used for detecting the passing of an article and respectively sending a trigger signal to the visual camera and the industrial control equipment;
the vision camera is used for continuously taking pictures after receiving the trigger signal sent by the electric eye and sending the pictures to the industrial control equipment;
the industrial control equipment is used for receiving the pictures sent by the visual camera after receiving the trigger signal sent by the electric eye and forwarding the received pictures to the picture decoding server;
and the picture decoding server is used for receiving the picture sent by the industrial control equipment, decoding the picture and returning a decoding result to the industrial control equipment.
2. The apparatus for trace-back code scanning according to claim 1, wherein the industrial control device comprises:
the serial number generating unit is used for generating a unique serial number when receiving the trigger signal sent by the electric eye;
a marking unit for marking pictures received from the visual camera at the same time as the unique serial number;
and the memory unit is used for storing the pictures marked as the unique serial numbers.
3. The apparatus for traceback code scanning of claim 2, wherein the industrial control device forwards a picture tagged as the unique serial number to the picture decoding server.
4. The apparatus for trace-back code scanning according to claim 3, wherein the picture decoding server includes:
the decoding unit is used for decoding all code information in the picture and forming a bar code data queue;
and the decoding result generating unit is used for marking the unique serial number for the bar code data queue and generating the decoding result.
5. The apparatus for trace-back code scanning according to claim 4, wherein the industrial control device further comprises:
the identification unit is used for identifying the corresponding relation between the decoding result and the picture according to the comparison between the unique serial number marked in the decoding result and the unique serial number marked by the picture stored in the memory unit;
and the data replacement unit is used for taking unrepeated bar code data in the bar code data queue and replacing the picture with the unrepeated bar code data.
6. A method for scanning tracing codes is characterized by comprising the following steps:
s1, when the electric eye detects that an article passes through, respectively sending a trigger signal to the visual camera and the industrial control equipment;
s2, the vision camera receives the trigger signal sent by the electric eye and continuously takes pictures, and sends the pictures to the industrial control equipment;
s3, after receiving the trigger signal sent by the electric eye, the industrial control equipment receives the picture sent by the visual camera and forwards the received picture to a picture decoding server;
and S4, the picture decoding server receives the picture sent by the industrial control equipment, decodes the picture and returns the decoding result to the industrial control equipment.
7. The method for scanning traceback code according to claim 6, wherein the step S3 further comprises:
when the industrial control equipment receives the trigger signal sent by the electric eye, a unique serial number is generated;
tagging pictures received simultaneously from the visual camera as the unique serial number;
saving the picture marked as the unique serial number.
8. The method for scanning traceback code according to claim 7, wherein in step S3, the industrial control device forwards the picture marked with the unique serial number to the picture decoding server.
9. The method for scanning traceback code according to claim 8, wherein the step S4 further comprises:
the picture decoding server decodes all code information in the picture and forms a bar code data queue;
and marking the unique serial number for the bar code data queue to generate the decoding result.
10. The method for scanning traceback code according to claim 9, further comprising the steps of:
s5, the industrial control equipment identifies the corresponding relation between the decoding result and the picture according to the comparison between the unique serial number marked in the decoding result and the unique serial number marked in the stored picture;
s6, taking unrepeated bar code data in the bar code data queue, and replacing the picture with the unrepeated bar code data.
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