CN114239773A - Material tracking method and material tracking device - Google Patents
Material tracking method and material tracking device Download PDFInfo
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- CN114239773A CN114239773A CN202111445647.1A CN202111445647A CN114239773A CN 114239773 A CN114239773 A CN 114239773A CN 202111445647 A CN202111445647 A CN 202111445647A CN 114239773 A CN114239773 A CN 114239773A
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- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
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Abstract
A material tracking method comprises the following steps: and the laser engraving equipment forms a second pattern in the designated area by using the second laser parameters and takes the second pattern as a second identification code. The designated area has a first graphic therein. The second pattern is at least partially coincident with the first pattern. The image identification device identifies the second identification code in the designated area by the second identification parameter. The material tracking method reduces the area occupied by the identification code on the material by covering and forming the second identification code in the designated area with the first pattern. The invention also provides a material tracking device.
Description
Technical Field
The invention relates to the technical field of product processing, in particular to a material tracking method and a material tracking device.
Background
In the product processing process, a plurality of processes exist, and a plurality of process information of the product needs to be traced.
Disclosure of Invention
In view of the above situation, the present invention provides a material tracking method and a material tracking device to solve the technical problem of how to trace product information.
A first aspect of the present application provides a material tracking method, including:
the laser engraving equipment forms a second graph in the designated area by using the second laser parameters, and the second graph is used as a second identification code; the designated area is provided with a first graph; the second pattern is at least partially overlapped with the first pattern; and
the image identification device identifies the second identification code in the designated area by the second identification parameter.
Therefore, the second identification code is formed in the designated area with the first graph, the identification code and other graphs can be formed in the same area together, product information can be traced, the occupied area of the material surface can be prevented from being increased by the identification code, and the second identification code can be accurately identified by the image identification equipment by setting designated identification parameters.
In some embodiments, the laser engraving device forms a first pattern in the designated area of the material by using the first laser parameter, and uses the first pattern as a first identification code; and
the image identification equipment identifies the first identification code in the designated area by the first identification parameter.
Therefore, the first identification code and the second identification code are respectively formed in the same designated area by adopting different laser parameters, different processes are distinguished by adopting different identification codes, different identification codes are controlled by image identification equipment to identify different identification codes by setting different designated identification parameters, and product information tracing of different processes is realized.
In some embodiments, the first graphic and the second graphic are each comprised of a plurality of graphic elements; each graphic unit is provided with a corresponding graphic feature, and the graphic features are used for distinguishing a first graphic from a second graphic; the graphical feature includes at least one of a location of the graphical element, a shape of the graphical element, and a size of the graphical element.
Therefore, the first graph and the second graph are distinguished by setting different graph characteristics, and the first identification code and the second identification code are prevented from being indistinguishable.
In some embodiments, the image recognition device has a recognition module; the identification module is used for identifying the pattern features to distinguish the first identification code and the second identification code.
Therefore, the identification module distinguishes different identification codes by identifying different graphic features, so that the situation that the identification codes cannot identify or identify wrong identification codes is avoided.
In some embodiments, the first laser parameters include a first spot size, the second laser parameters include a second spot size, the first pattern is formed by laser engraving of the first spot size, the second pattern is formed by laser engraving of the second spot size, and the first spot size is smaller than the second spot size.
Therefore, different light spot sizes are adopted when the identification codes are formed, and different identification codes can be better distinguished.
In some embodiments, the identification parameter is used to set the size of the graphic unit when the image recognition device recognizes the designated area; the image recognition equipment recognizes a first graph with the size of a first graph unit in the designated area according to the first recognition parameter, so that the first recognition code is recognized by the image recognition equipment; the image recognition equipment recognizes a second graph with the size of a second graph unit in the designated area according to the second recognition parameter, so that the second recognition code is recognized by the image recognition equipment; the first identification parameter includes a size of the first graphic element, the second identification parameter includes a size of the second graphic element, and the size of the first graphic element is smaller than the size of the second graphic element.
In this way, the identification parameters in the image identification are set, so that the identification of the specified identification code in the specified area is realized, and the interference of another identification code on the target identification code during identification of the identification code can be reduced.
A second aspect of the present application provides a material tracking apparatus for forming an image by laser coding in a designated area of a material and taking the image as an identification code; the material tracking device includes:
the laser engraving equipment forms a second graph in the designated area by using the second laser parameters and takes the second graph as a second identification code; the designated area is provided with a first graph; the second pattern is at least partially overlapped with the first pattern; and
and the image identification equipment identifies the second identification code in the designated area by using the second identification parameter.
Therefore, the second identification code is formed in the designated area with the first graph, the identification code and other graphs can be formed in the same area together, product information can be traced, the occupied area of the material surface can be prevented from being increased by the identification code, and the second identification code can be accurately identified by the image identification equipment by setting designated identification parameters.
In some embodiments, the laser engraving device forms a first pattern in the designated area of the material by using the first laser parameter, and uses the first pattern as a first identification code; and
the image identification equipment identifies the first identification code in the designated area by the first identification parameter.
Therefore, the first identification code and the second identification code are respectively formed in the same designated area by adopting different laser parameters, different processes are distinguished by adopting different identification codes, different identification codes are controlled by image identification equipment to identify different identification codes by setting different designated identification parameters, and product information tracing of different processes is realized.
In some embodiments, the first graphic and the second graphic are each comprised of a plurality of graphic elements; each graphic unit is provided with a corresponding graphic feature, and the graphic features are used for distinguishing a first graphic from a second graphic; the graphic feature includes at least one of a position of the graphic element, a shape of the graphic element, and a size of the graphic element; the image recognition equipment is provided with a recognition module; the identification module is used for identifying the pattern features to distinguish the first identification code and the second identification code.
So, through setting for different figure characteristics to distinguish first figure and second figure, thereby avoid unable distinguishing between first identification code and the second identification code, simultaneously, the identification module distinguishes different identification codes through discerning different figure characteristics, thereby avoids the unable discernment of identification code or discerns wrong identification code.
In some embodiments, the first laser parameters include a first spot size, the second laser parameters include a second spot size, the first pattern is formed by laser engraving of the first spot size, the second pattern is formed by laser engraving of the second spot size, and the first spot size is smaller than the second spot size.
Therefore, different light spot sizes are adopted when the identification codes are formed, and different identification codes can be better distinguished.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic flow chart of a material tracking method according to a preferred embodiment of the invention.
FIGS. 2a-2c are schematic diagrams of a first graph, a second graph, and an overlay graph, respectively.
Fig. 3 is an enlarged schematic view of the first graph in fig. 2 a.
Fig. 4 is an enlarged view of the second graph in fig. 2 b.
Fig. 5 is an enlarged schematic view of the overlay pattern of fig. 2 c.
Fig. 6 is an enlarged schematic view of the overlay pattern of fig. 5.
Fig. 7 is a block diagram of a material tracking device according to a preferred embodiment of the present invention.
FIG. 8 is a block diagram of a storage medium according to a preferred embodiment of the present invention.
Description of the main elements
Material tracking method S10-S13
Specifying an area 201
First graphic unit 31
Second graphic unit 41
Overlay graphic 50
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
For a clearer understanding of the objects, features and advantages of the present application, reference is made to the following detailed description of the present application along with the accompanying drawings and specific examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present application, and the described embodiments are merely a subset of the embodiments of the present application and are not intended to be a complete embodiment.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Some embodiments of the present application provide a material tracking method, comprising:
the laser engraving equipment forms a second graph in the designated area by using the second laser parameters, and the second graph is used as a second identification code; the designated area is provided with a first graph; the second pattern is at least partially overlapped with the first pattern; and
the image identification device identifies the second identification code in the designated area by the second identification parameter.
Therefore, the second identification code is formed in the designated area with the first graph, the identification code and other graphs can be formed in the same area together, product information can be traced, the occupied area of the material surface can be prevented from being increased by the identification code, and the second identification code can be accurately identified by the image identification equipment by setting designated identification parameters.
Some embodiments of the present application provide a material tracking device for forming an image by laser coding in a designated area of a material and using the image as an identification code; the material tracking device includes:
the laser engraving equipment forms a second graph in the designated area by using the second laser parameters and takes the second graph as a second identification code; wherein, the designated area is provided with a first graph; the second pattern is at least partially overlapped with the first pattern; and
and the image identification equipment identifies the second identification code in the designated area by using the second identification parameter.
Therefore, the second identification code is formed in the designated area with the first graph, the identification code and other graphs can be formed in the same area together, product information can be traced, the occupied area of the material surface can be prevented from being increased by the identification code, and the second identification code can be accurately identified by the image identification equipment by setting designated identification parameters.
In this way, the identification parameters in the image identification are set, so that the identification of the specified identification code in the specified area is realized, and the interference of another identification code on the target identification code during identification of the identification code can be reduced.
The following description of specific embodiments of the invention will be made with reference to the accompanying drawings.
Please refer to fig. 1, which illustrates a material tracking method according to some embodiments of the present application. The material tracking method is used for forming an identification code on the material 200 (as shown in fig. 2 a-c), and tracking and identifying the material 200 by identifying the identification code.
In at least one embodiment of the present invention, the material 200 may be made of a metal material, such as a metal containing titanium, steel, aluminum, copper, etc., and the identification code may be formed on the material 200.
The identification code can be a two-dimensional code or a bar code. In at least one embodiment of the present invention, an example in which the identification code is a two-dimensional code will be described.
Referring to fig. 2b-2c, S10, the laser engraving device 10 (shown in fig. 6) forms a second pattern 40 in the designated area 201 of the material 200 according to the second laser parameter, and uses the second pattern 40 as a second identification code.
Within the designated area 201 is a first graphic 30 (shown in fig. 2 a). It should be noted that, for convenience of description, fig. 2b is a schematic diagram illustrating that the second pattern 40 is directly formed on the material 200, and fig. 2c is a schematic diagram illustrating that the second pattern 40 is formed on the first pattern 30, and since both the second pattern 40 and the first pattern 30 are formed in the designated area 201, the second pattern 40 and the first pattern 30 at least partially overlap in the designated area 201 to form the overlapping pattern 50.
The laser parameter may be a spot size of the laser emitted by the laser engraving device 10. The laser engraving device 10 emits laser light of a second spot size when engraving the identification code with the second laser parameters. In at least one embodiment of the present invention, the second spot size may be 0.2 millimeters.
In at least one embodiment of the present invention, the designated area 201 can be located at a corner of the surface of the material 200, such as an upper left corner, an upper right corner, a lower left corner, a lower right corner, or the like. In other embodiments, designated area 201 may also be other locations relative to the surface of material 200, such as the left, right, upper, or lower edges, or may be a central location of material 200.
Referring to fig. 4 and 6, the second graph 40 is composed of a plurality of second graph units 41. Each second graphical unit 41 has a second graphical feature. The second graphical feature is used to characterize a second graphical element 41 to distinguish between graphical elements other than the others. The graphic feature corresponding to the second graphic unit 41 may include at least one of a position of the second graphic unit 41, a shape of the second graphic unit 41, and a size of the second graphic unit 41. Wherein the size of the second graphical unit 41 corresponds to the second laser parameter. The size of the second graphic element 41 is a second graphic element 41 formed in the designated area 201 of the material 200 by the laser with the second spot size emitted by the laser engraving device 10 with the second laser parameter. In at least one embodiment of the present invention, the shape of the second graphic element 41 is a circle, and the size of the second graphic element 41 is 0.2 mm, i.e. the second graphic element 41 has a circular structure with a diameter of 0.2 mm.
S11, the image recognition device 20 (as shown in fig. 7) recognizes the second identification code in the designated area 201 with the second recognition parameter.
In at least one embodiment of the present invention, the image recognition device 20 may be a Charge Coupled Device (CCD) device or a Complementary metal-oxide-semiconductor (CMOS) device. In other embodiments, the image recognition device 20 may be other types of image recognition devices.
The image recognition device 20 has a recognition module 21 therein. The identification module 21 is used for setting identification parameters. The identification parameter is used to set the size of the graphic unit when the image recognition device 20 recognizes the inside of the designated area 201. In at least one embodiment of the present invention, the second identification parameter is the size of the second graphical element 41. When the second identification code in the designated area 201 is identified by the second identification parameter, the image recognition apparatus 20 may identify the second pattern 40 constituted by the second pattern unit 41.
Since the first pattern 30 and the second pattern 40 form the overlapping pattern 50 in the designated area 201, it may cause a situation that the image recognition apparatus 20 cannot recognize or recognizes only a wrong identification code when recognizing the identification code in the designated area 201. Therefore, by setting the second recognition parameter, the image recognition apparatus 20 can recognize the second pattern 40 constituted by the second pattern unit 41 when recognizing the identification code in the designated area 201. That is, the image recognition apparatus 20 ignores the first graphic 30 within the designated area 201.
In the material tracking method, the second identification code is formed in the designated area 201 with the first graph 30, so that the second identification code and other graphs can be formed in the same area together, product information can be traced, and the identification code can be prevented from increasing the occupied area of the surface of the material 200.
In some embodiments of the present application, a material tracking method may further include the following steps before step S10:
referring to fig. 2a, S12, the laser engraving device 10 forms the first pattern 30 in the designated area 201 with the first laser parameter, and uses the first pattern 30 as the first identification code.
The laser engraving device 10 emits laser of a second spot size when engraving the identification code with the first laser parameters. In at least one embodiment of the present invention, the first spot size is smaller than the second spot size. In at least one embodiment of the present invention, the first spot size may be 0.08 millimeters.
Referring to fig. 3 and 6, the first graph 30 is composed of a plurality of first graph units 31. Each first graphical unit 31 has a first graphical feature. The graphic feature corresponding to the first graphic unit 31 may include at least one of a position of the first graphic unit 31, a shape of the first graphic unit 31, and a size of the first graphic unit 31. Wherein the size of the first graphical unit 31 corresponds to the first laser parameter. The size of the first graphic element 31 is a first graphic element 31 formed in the designated area 201 of the material 200 by the laser engraving device 10 emitting the laser with the first spot size with the first laser parameter. The shape of the first graphic element 31 is circular, and the size of the first graphic element 31 is 0.08 mm, that is, the first graphic element 31 is a circular structure with a diameter of 0.08 mm.
In some embodiments of the present application, a method for tracking materials may further include the following steps between the step S12 and the step S10:
s13, the image recognition device 20 recognizes the first identification code in the designated area with the first recognition parameter.
In some embodiments of the present invention, the laser engraving device 10 emits laser light of a first spot size when engraving the identification code with the first laser parameters. The first spot size is smaller than the second spot size. In some embodiments of the present invention, the first spot size may be 0.08 millimeters.
By the above material tracking method, the first identification code and the second identification code are formed in the same designated area 201, so that the identification codes can be prevented from increasing the occupied area of the material 200. Meanwhile, by setting different laser parameters, the laser engraving device 10 forms patterns with different pattern unit sizes on the material 200 as corresponding identification codes. That is, the first identification code is constituted by the first graphic element 31, the second identification code is constituted by the second graphic element 41, and the size of the first graphic element 31 is different from the size of the second graphic element 41. In addition, by setting the designated identification parameters, the image recognition device 20 can accurately recognize the designated identification code. That is, the image recognition apparatus 20 can recognize the first pattern 30 formed by the first pattern unit 31 in the designated area 201 by the first recognition parameter to recognize the first recognition code; the image recognition device 20 can recognize the second pattern 40 formed by the second pattern unit 41 in the designated area 201 through the second recognition parameter to recognize the second recognition code, so as to avoid the indistinguishable between the first recognition code and the second recognition code.
Please refer to fig. 7, which illustrates a material tracking apparatus 100 according to some embodiments of the present application. The material tracking apparatus 100 is used to form an identification code on the material 200 (as shown in fig. 2 a-c), and track and identify the material 200 by identifying the identification code.
The material tracking device 100 includes a laser engraving device 10 and an image recognition device 20.
The laser engraving device 10 is configured to form the second pattern 40 in the designated area 201 with the second laser parameters and to use the second pattern 40 as the second identification code. Wherein the designated area 201 has the first graphic 30 therein. The second graphic 40 is at least partially coincident with the first graphic 30.
In at least one embodiment of the present invention, the material 200 may be made of a metal material, such as a metal containing titanium, steel, aluminum, copper, etc., and the identification code may be formed on the material 200.
The identification code can be a two-dimensional code or a bar code. In at least one embodiment of the present invention, an example in which the identification code is a two-dimensional code will be described.
The laser parameter may be a spot size of the laser emitted by the laser engraving device 10. The laser engraving device 10 emits laser light of a second spot size when engraving the identification code with the second laser parameters. In at least one embodiment of the present invention, the second spot size may be 0.2 millimeters.
In at least one embodiment of the present invention, the designated area 201 can be located at a corner of the surface of the material 200, such as an upper left corner, an upper right corner, a lower left corner, a lower right corner, or the like. In other embodiments, designated area 201 may also be other locations relative to the surface of material 200, such as the left, right, upper, or lower edges, or may be a central location of material 200.
Referring to fig. 4 and 6, the second graph 40 is composed of a plurality of second graph units 41. Each second graphical unit 41 has a second graphical feature. The second graphical feature is used to characterize a second graphical element 41 to distinguish between graphical elements other than the others. The graphic feature corresponding to the second graphic unit 41 may include at least one of a position of the second graphic unit 41, a shape of the second graphic unit 41, and a size of the second graphic unit 41. Wherein the size of the second graphical unit 41 corresponds to the second laser parameter. The size of the second graphic element 41 is a second graphic element 41 formed in the designated area 201 of the material 200 by the laser with the second spot size emitted by the laser engraving device 10 with the second laser parameter. In at least one embodiment of the present invention, the shape of the second graphic element 41 is a circle, and the size of the second graphic element 41 is 0.2 mm, i.e. the second graphic element 41 has a circular structure with a diameter of 0.2 mm. The image recognition device 20 is configured to recognize the second identification code in the designated area 201 with the second recognition parameter.
In at least one embodiment of the present invention, the image recognition device 20 may be a Charge Coupled Device (CCD) device or a Complementary metal-oxide-semiconductor (CMOS) device. In other embodiments, the image recognition device 20 may be other types of image recognition devices.
The image recognition device 20 has a recognition module 21 therein. The identification module 21 is used for setting identification parameters. The identification parameter is used to set the size of the graphic unit when the image recognition device 20 recognizes the inside of the designated area 201. In at least one embodiment of the present invention, the second identification parameter is the size of the second graphical element 41. When the identification code in the designated area 201 is identified by the second identification parameter, the image recognition apparatus 20 may identify the second pattern 40 constituted by the second pattern unit 41.
Since the first pattern 30 and the second pattern 40 form the overlapping pattern 50 in the designated area 201, it may cause a situation that the image recognition apparatus 20 cannot recognize or recognizes only a wrong identification code when recognizing the identification code in the designated area 201. Therefore, by setting the second recognition parameter, the image recognition apparatus 20 can recognize the second pattern 40 constituted by the second pattern unit 41 when recognizing the identification code in the designated area 201. That is, the image recognition apparatus 20 ignores the first graphic 30 within the designated area 201.
In the material tracking method, the second identification code is formed in the designated area 201 with the first graph 30, so that the second identification code and other graphs can be formed in the same area together, product information can be traced, and the identification code can be prevented from increasing the occupied area of the surface of the material 200.
In some embodiments of the present invention, the laser engraving device 10 is further configured to form the first pattern 30 in the designated area 201 with the first laser parameters, and to use the first pattern 30 as the first identification code.
In some embodiments of the present invention, the laser engraving device 10 emits laser light of a first spot size when engraving the identification code with the first laser parameters. The first spot size is smaller than the second spot size. In some embodiments of the present invention, the first spot size may be 0.08 millimeters.
Referring to fig. 3 and 6, the first graph 30 is composed of a plurality of first graph units 31. Each first graphical unit 31 has a second graphical feature. The first graphical feature is used to characterize the first graphical unit 31 to distinguish between graphical units other than the one that is different. The graphic feature corresponding to the first graphic unit 31 may include at least one of a position of the first graphic unit 31, a shape of the first graphic unit 31, and a size of the first graphic unit 31. Wherein the size of the first graphical unit 31 corresponds to the first laser parameter. The size of the first graphic element 31 is a first graphic element 31 formed in the designated area 201 of the material 200 by the laser with the first spot size emitted by the laser engraving device 10 with the first laser parameter. In at least one embodiment of the present invention, the shape of the first graphic element 31 is a circle, and the size of the first graphic element 31 is 0.08 mm, i.e. the first graphic element 31 has a circular structure with a diameter of 0.08 mm.
The image recognition device 20 is further configured to recognize the first identification code in the designated area 201 with the first recognition parameter.
In at least one embodiment of the present invention, the first identification parameter is a size of the first graphic element 31. When the first identification code in the designated area 201 is identified by the first identification parameter, the image recognition apparatus 20 can recognize the first graphic 30 constituted by the first graphic unit 31.
With the material tracking apparatus 100, the first identification code and the second identification code are formed in the same designated area 201, so that the increase of the occupied area of the identification code on the material 200 can be avoided. Meanwhile, by setting different laser parameters, the laser engraving device 10 forms patterns with different pattern unit sizes on the material 200 as corresponding identification codes. That is, the first identification code is constituted by the first graphic element 31, the second identification code is constituted by the second graphic element 41, and the size of the first graphic element 31 is different from the size of the second graphic element 41. In addition, by setting the designated identification parameters, the image recognition device 20 can accurately recognize the designated identification code. That is, the image recognition apparatus 20 can recognize the first pattern 30 formed by the first pattern unit 31 in the designated area 201 by the first recognition parameter to recognize the first recognition code; the image recognition device 20 can recognize the second pattern 40 formed by the second pattern unit 41 in the designated area 201 through the second recognition parameter to recognize the second recognition code, so as to avoid the indistinguishable between the first recognition code and the second recognition code.
Please refer to fig. 8, which is a storage medium 300 according to some embodiments of the present disclosure. The storage medium 300 is a computer-readable storage medium that may include a memory 301 and a processor 302.
The memory 301 stores at least one instruction. At least one instruction may be executable by the processor 302 to implement the material tracking method described above. The memory 301 may include random access memory and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
The Processor 302 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any other conventional processor or the like.
In some embodiments of the present application, the processor 302 executes at least one instruction stored in the memory 301 to implement the steps of:
the laser engraving device 10 forms a second graph 40 in the designated area 201 by using second laser parameters, and takes the second graph 40 as a second identification code; the first graph 30 is arranged in the designated area 201; the second graphic 40 is at least partially coincident with the first graphic 30; and
the image recognition device 20 recognizes the second identification code in the designated area 201 with the second recognition parameter.
In at least one embodiment of the present invention, the material 200 may be made of a metal material, such as a metal containing titanium, steel, aluminum, copper, etc., and the identification code may be formed on the material 200.
The identification code can be a two-dimensional code or a bar code. In at least one embodiment of the present invention, an example in which the identification code is a two-dimensional code will be described.
The laser parameter may be a spot size of the laser emitted by the laser engraving device 10. The laser engraving device 10 emits laser light of a second spot size when engraving the identification code with the second laser parameters. In at least one embodiment of the present invention, the second spot size may be 0.2 millimeters.
In at least one embodiment of the present invention, the designated area 201 can be located at a corner of the surface of the material 200, such as an upper left corner, an upper right corner, a lower left corner, a lower right corner, or the like. In other embodiments, designated area 201 may also be other locations relative to the surface of material 200, such as the left, right, upper, or lower edges, or may be a central location of material 200.
Referring to fig. 4 and 6, the second graph 40 is composed of a plurality of second graph units 41. Each second graphical unit 41 has a second graphical feature. The second graphical feature is used to characterize a second graphical element 41 to distinguish between graphical elements other than the others. The graphic feature corresponding to the second graphic unit 41 may include at least one of a position of the second graphic unit 41, a shape of the second graphic unit 41, and a size of the second graphic unit 41. Wherein the size of the second graphical unit 41 corresponds to the second laser parameter. The size of the second graphic element 41 is a second graphic element 41 formed in the designated area 201 of the material 200 by the laser with the second spot size emitted by the laser engraving device 10 with the second laser parameter. In at least one embodiment of the present invention, the shape of the second graphic element 41 is a circle, and the size of the second graphic element 41 is 0.08 mm, i.e. the second graphic element 41 has a circular structure with a diameter of 0.2 mm.
In at least one embodiment of the present invention, the image recognition device 20 may be a Charge Coupled Device (CCD) device or a Complementary metal-oxide-semiconductor (CMOS) device. In other embodiments, the image recognition device 20 may be other types of image recognition devices.
The image recognition device 20 has a recognition module 21 therein. The identification module 21 is used for setting identification parameters. The identification parameter is used to set the size of the graphic unit when the image recognition device 20 recognizes the inside of the designated area 201. In at least one embodiment of the present invention, the second identification parameter is the size of the second graphical element 41. When the second identification code in the designated area 201 is identified by the second identification parameter, the image recognition apparatus 20 may identify the second pattern 40 constituted by the second pattern unit 41.
Since the first pattern 30 and the second pattern 40 form the overlapping pattern 50 in the designated area 201, it may cause a situation that the image recognition apparatus 20 cannot recognize or recognizes only a wrong identification code when recognizing the identification code in the designated area 201. Therefore, by setting the second recognition parameter, the image recognition apparatus 20 can recognize the second pattern 40 constituted by the second pattern unit 41 when recognizing the identification code in the designated area 201. That is, the image recognition apparatus 20 ignores the first graphic 30 within the designated area 201.
Before the step of forming the second pattern 40 in the designated area 201 by the laser engraving device 10 with the second laser parameters and using the second pattern 40 as the second identification code, the method may further include:
the laser engraving device 10 forms the first pattern 30 in the designated area 201 with the first laser parameters, and uses the first pattern 30 as the first identification code.
Referring to fig. 3 and 6, the first graph 30 is composed of a plurality of first graph units 31. Each first graphical unit 31 has a second graphical feature. The graphic feature corresponding to the first graphic unit 31 may include at least one of a position of the first graphic unit 31, a shape of the first graphic unit 31, and a size of the first graphic unit 31. Wherein the size of the first graphical unit 31 corresponds to the first laser parameter. The first pattern unit 31 is sized such that the laser engraving device 10 emits laser light with a spot size at the first laser parameters to form one first pattern unit 31 in the designated area 201 of the material 200. The shape of the first graphic element 31 is circular, and the size of the first graphic element 31 is 0.08 mm, that is, the first graphic element 31 is a circular structure with a diameter of 0.08 mm.
Between the step of forming the first pattern 30 in the designated area 201 with the first laser parameters and using the first pattern 30 as the first identification code in the laser engraving device 10 and the step of forming the second pattern 40 in the designated area 201 with the second laser parameters and using the second pattern 40 as the second identification code in the laser engraving device 10, the method may further include:
the image recognition device 20 recognizes the first identification code in the designated area 201 with the first recognition parameter.
In at least one embodiment of the present invention, the first identification parameter is a size of the first graphic element 31. When the first identification code in the designated area 201 is identified by the first identification parameter, the image recognition apparatus 20 can recognize the first graphic 30 constituted by the first graphic unit 31.
With the storage medium 300, the first identification code and the second identification code are formed in the same designated area 201, so that the increase of the occupied area of the identification codes on the material 200 can be avoided. Meanwhile, by setting different laser parameters, the laser engraving device 10 forms patterns with different pattern unit sizes on the material 200 as corresponding identification codes. That is, the first identification code is constituted by the first graphic element 31, the second identification code is constituted by the second graphic element 41, and the size of the first graphic element 31 is different from the size of the second graphic element 41. In addition, by setting the designated identification parameters, the image recognition device 20 can accurately recognize the designated identification code. That is, the image recognition apparatus 20 can recognize the first pattern 30 formed by the first pattern unit 31 in the designated area 201 by the first recognition parameter to recognize the first recognition code; the image recognition device 20 can recognize the second pattern 40 formed by the second pattern unit 41 in the designated area 201 through the second recognition parameter to recognize the second recognition code, so as to avoid the indistinguishable between the first recognition code and the second recognition code.
The above embodiments are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A method of material tracking, comprising:
forming a second graph in the designated area by the laser engraving equipment according to a second laser parameter, and taking the second graph as a second identification code; the designated area is provided with a first graph, and the second graph is at least partially overlapped with the first graph; and
the image identification equipment identifies the second identification code in the designated area by using second identification parameters.
2. The material tracking method of claim 1, wherein the material tracking method further comprises:
forming the first graph in a designated area of the material by using a first laser parameter through the laser engraving equipment, and taking the first graph as a first identification code; and
the image identification equipment identifies the first identification code in the designated area by first identification parameters.
3. The material tracking method as defined in claim 2, wherein the first graphic and the second graphic are each composed of a plurality of graphic units; wherein each of the graphic units has a corresponding graphic feature for distinguishing the first graphic from the second graphic; the graphical feature includes at least one of a location of the graphical element, a shape of the graphical element, and a size of the graphical element.
4. The material tracking method of claim 3, wherein the image recognition device has a recognition module; the identification module is used for identifying the graphic features to distinguish the first identification code and the second identification code which are identified.
5. The material tracking method of claim 2, wherein: the first laser parameter comprises a first spot size, the second laser parameter comprises a second spot size, the first pattern is formed by laser engraving of the first spot size, the second pattern is formed by laser engraving of the second spot size, and the first spot size is smaller than the second spot size.
6. The material tracking method according to claim 3, wherein the identification parameter is used to set a size of a graphic unit when the image identification device identifies the designated area; the image recognition device recognizes the first graph with the size of a first graph unit in the designated area according to a first recognition parameter, so that the first recognition code is recognized by the image recognition device; the image recognition device recognizes the second graph with the size of a second graph unit in the designated area according to a second recognition parameter, so that the second recognition code is recognized by the image recognition device;
the first identification parameter includes a size of a first graphic element, the second identification parameter includes a size of a second graphic element, and the size of the first graphic element is smaller than the size of the second graphic element.
7. A material tracking device is used for forming an image in a designated area of a material through laser coding and taking the image as an identification code; the material tracking device includes:
the laser engraving equipment forms a second graph in the designated area by using a second laser parameter and takes the second graph as a second identification code; the designated area is provided with a first graph, and the second graph is at least partially overlapped with the first graph; and
and the image identification equipment identifies the second identification code in the designated area by using a second identification parameter.
8. The material tracking device of claim 7, further comprising:
the laser engraving equipment forms the first graph in the designated area of the material according to first laser parameters, and the first graph is used as a first identification code; and
the image identification equipment identifies the first identification code in the designated area by first identification parameters.
9. The material tracking device of claim 7, wherein the first graphic and the second graphic are each comprised of a plurality of graphic elements; wherein each of the graphic units has a corresponding graphic feature for distinguishing the first graphic from the second graphic; the graphical feature comprises at least one of a location of the graphical element, a shape of the graphical element, and a size of the graphical element; the image recognition equipment is provided with a recognition module; the identification module is used for identifying the graphic features to distinguish the first identification code and the second identification code which are identified.
10. The material tracking device of claim 7, wherein the first laser parameters include a first spot size and the second laser parameters include a second spot size, the first pattern formed by laser engraving of the first spot size and the second pattern formed by laser engraving of the second spot size, the first spot size being smaller than the second spot size.
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