CN213987520U - DPM code detection system based on machine vision - Google Patents
DPM code detection system based on machine vision Download PDFInfo
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- CN213987520U CN213987520U CN202023038998.4U CN202023038998U CN213987520U CN 213987520 U CN213987520 U CN 213987520U CN 202023038998 U CN202023038998 U CN 202023038998U CN 213987520 U CN213987520 U CN 213987520U
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Abstract
The utility model discloses a DPM code detection system based on machine vision, which comprises a detection table, a mounting bracket, an industrial camera, an upper computer and a lighting device; wherein, examine test table and be used for placing the piece of waiting to detect that has the DPM sign indicating number, industry camera and installing support swing joint, industry camera are located and examine test table top and can examine test table relatively and reciprocate, host computer and industry camera electric connection, industry camera are used for discerning the DPM sign indicating number and give the host computer with the image information who gathers, and the host computer carries out analysis and processing to image information, and lighting device is located and examines test table top, and lighting device is used for illuminating the DPM sign indicating number. According to the utility model discloses a DPM sign indicating number detecting system based on machine vision scans the DPM sign indicating number through adopting the industry camera, and the image acquisition precision is higher, and the industry camera can reciprocate or control the rotation in addition, and the focus of industry camera and the regulation in field of vision are more convenient, can scan and discern the DPM sign indicating number of arranging inhomogeneously, size and length and width difference.
Description
Technical Field
The utility model belongs to the technical field of bar code quality testing and specifically relates to a DPM sign indicating number detecting system based on machine vision is related to.
Background
The DPM (direct Part mark) code, also called direct Part mark, is a special mark making technology, and the technology can realize marking on the surface of parts directly without marking carriers such as paper, labels and the like. Because the two-dimensional code marked on the product by the DPM only occupies a small space of parts, a lot of character or digital information can be stored, and the two-dimensional code can be encrypted and has high information security, the DPM code is widely applied to quality backtracking and product tracking management links in many industries. However, in the industry, the code scanning environment of some metal parts is poor, the interference of the parts to scanning is large, the existing identification instrument cannot effectively identify the DPM code, and the image acquisition precision of the DPM code is not high enough. In addition, many low-quality DPM codes are often arranged unevenly and have different sizes and lengths, which increases the difficulty of identifying the DPM codes.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a DPM sign indicating number detecting system based on machine vision, the image acquisition precision is high, and can effectively discern the DPM sign indicating number of arranging inhomogeneously, size and length and width difference.
According to the utility model discloses DPM sign indicating number detecting system based on machine vision, include: the detection table is used for placing a to-be-detected piece with a DPM code; mounting a bracket; the industrial camera is movably connected with the mounting bracket, is positioned above the detection table and can move up and down relative to the detection table; the industrial camera is used for recognizing the DPM code and transmitting the acquired image information to the upper computer, and the upper computer analyzes and processes the image information; an illumination device located above the inspection station, the illumination device for illuminating the DPM code.
According to the utility model discloses DPM sign indicating number detecting system based on machine vision has following beneficial effect at least: through adopting the industry camera to come to scan the DPM sign indicating number, the image acquisition precision is higher, can effectively discern the DPM sign indicating number, provide more clear image and supply the host computer to carry out the analysis, make the host computer can calculate DPM bar code quality subitem parameter and grade, simultaneously, because the activity of industry camera sets up on the installing support, can reciprocate or the horizontal rotation, the regulation of the focus of industry camera and the field of vision is more convenient, can scan and discern the DPM sign indicating number of arranging inhomogeneously, size and length and width difference.
According to some embodiments of the utility model, still include the light source controller, the light source controller with lighting device electric connection, in order to control lighting device's illumination state.
According to some embodiments of the invention, the lighting device comprises a plurality of LED lamps, a plurality of the LED lamps arranged around the industrial camera.
According to some embodiments of the invention, the mounting bracket comprises: the telescopic rod is arranged on the detection table; first bracing piece, first end with scalable pole swing joint can wind scalable pole rotates, industry camera set up in the second end of first bracing piece.
According to some embodiments of the utility model, the installing support still includes first light source installation pole, the one end of first light source installation pole with scalable pole swing joint can wind scalable pole rotates, the other end of first light source installation pole with lighting device connects, lighting device is LED annular light source, lighting device's middle part fretwork, the camera lens of industry camera is located lighting device's fretwork part's top.
According to some embodiments of the invention, the mounting bracket comprises: the lower end of the fixed rod is detachably arranged on the detection table; and the first end of the second supporting rod is movably connected with the fixed rod and can move up and down along the fixed rod, the industrial camera is movably arranged at the second end of the second supporting rod, and the angle of the lens of the industrial camera is adjustable.
According to some embodiments of the utility model, the first end of second bracing piece pass through universal joint with dead lever swing joint, the universal joint cover is located on the dead lever.
According to some embodiments of the utility model, the lower extreme of dead lever with detect the upper surface threaded connection of platform.
According to some embodiments of the utility model, the second end of second bracing piece is provided with universal cloud platform, the industry camera passes through universal cloud platform with second bracing piece swing joint.
According to some embodiments of the utility model, the installing support still includes second light source installation pole, the one end of second light source installation pole with dead lever swing joint can follow the dead lever reciprocates, the other end of second light source installation pole with lighting device connects, lighting device is LED annular light source, lighting device's middle part fretwork, the camera lens of industry camera is located lighting device's fretwork part's top.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a DPM code detection system based on machine vision according to a first embodiment of the present invention;
fig. 2 is a schematic perspective view of a DPM code detection system based on machine vision according to a second embodiment of the present invention;
fig. 3 is a schematic perspective view of a DPM code detection system based on machine vision according to a third embodiment of the present invention;
reference numerals:
the detection device comprises a detection table 100, a mounting bracket 200, a telescopic rod 210, a first supporting rod 220, a first light source mounting rod 230, a fixing rod 240, a second supporting rod 250, a second light source mounting rod 260, a universal joint 270, an industrial camera 300, an upper computer 400, a lighting device 500 and a light source controller 600.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
As shown in fig. 1, the DPM code detection system based on machine vision according to the embodiment of the present invention includes a detection station 100, a mounting bracket 200, an industrial camera 300, an upper computer 400 and an illumination device 500; wherein, examine test table 100 and be used for placing the piece of waiting to detect that has the DPM sign indicating number, industry camera 300 and installing support 200 swing joint, industry camera 300 is located and examines test table 100 top and can examine test table 100 relatively and reciprocate, host computer 400 and industry camera 300 electric connection, industry camera 300 is used for discerning the DPM sign indicating number and transmits the image information who gathers for host computer 400, host computer 400 carries out analysis and processing to image information, lighting device 500 is located and examines test table 100 top, lighting device 500 is used for illuminating the DPM sign indicating number. The industrial camera 300 may be electrically connected to the upper computer 400 through an ethernet cable, a USB data cable, or the like, and transmit image information to the upper computer 400. The industrial camera 300 has high image stability, high transmission capability, high interference resistance, and the like, and can convert an optical signal into an ordered electrical signal, compared to a conventional video camera. In some embodiments of the present invention, the industrial camera 300 is a ccd (charge Coupled device) or cmos (complementary Metal Oxide semiconductor) chip based camera. The upper computer 400 is a conventional computer or other image processor, and the processing program is preset in the upper computer 400, so that the image information of the DPM code can be processed, the quality sub-item parameters of the DPM barcode can be calculated, and the quality sub-item parameters of the DPM barcode can be graded.
Specifically, according to the utility model discloses a DPM sign indicating number detecting system based on machine vision is scanning and discerning the DPM sign indicating number before, will have the waiting of DPM sign indicating number to detect to place on examining test table 100 earlier, lighting device 500 throws light on the DPM sign indicating number, so that industrial camera 300 can scan and discern, the image information who will gather after the industrial camera 300 discernment transmits for host computer 400, host computer 400 carries out analysis and processing to image information, thereby obtain the quality subitem parameter of DPM sign indicating number and grade. In order to adjust the focal length of the industrial camera 300 during the scanning process, the industrial camera 300 may be moved up and down so that the industrial camera 300 is in a proper position to achieve a better scanning effect. According to the utility model discloses DPM sign indicating number detecting system based on machine vision, through adopting industrial camera 400 to scan the DPM sign indicating number, the image acquisition precision is higher, can effectively discern the DPM sign indicating number, provides clearer image for host computer 400 to carry out the analysis; meanwhile, the industrial camera 400 is movably arranged on the mounting bracket 200 and can move up and down or rotate left and right, the adjustment of the focal length and the visual field of the industrial camera 400 is more convenient, and the DPM codes which are not uniform in arrangement and different in size and length and width can be scanned and identified.
As shown in fig. 1, in some embodiments of the present invention, the lighting device further includes a light source controller 600, and the light source controller 600 is electrically connected to the lighting device 500 to control the lighting state of the lighting device 500. In this example, the light source controller 600 is a digital controller that is commonly available in the market and can be remotely controlled by a computer or other device. By providing the light source controller 600, the lighting device 500 can be controlled to be turned on and off, and the illumination intensity of the lighting device 500 can be controlled, so that the optimal lighting imaging condition can be obtained, and the industrial camera 300 can correctly recognize the DPM codes on different objects. Of course, the light source controller 600 may also be an analog controller or the like commonly available in the market. The specific model of the light source controller 600 may employ CA-DC21E or LTS-DPC, etc.
As shown in fig. 1, in some embodiments of the present invention, the lighting device 500 includes a plurality of LED lights arranged around the industrial camera 300. Specifically, for better illumination of the DPM code, LED lamps may be respectively disposed in front, rear, left, and right directions of the industrial camera 300, so that the illumination apparatus 500 may sufficiently illuminate the DPM code for the industrial camera 300 to recognize.
As shown in fig. 1 and 2, in some embodiments of the present invention, the mounting bracket 200 includes a telescopic rod 210 and a first supporting rod 220, the telescopic rod 210 is disposed on the inspection table 100, a first end of the first supporting rod 220 is movably connected to the telescopic rod 210 and can rotate around the telescopic rod 210, and the industrial camera 300 is disposed at a second end of the first supporting rod 220. Specifically, the telescopic rod 210 may be an electric telescopic rod commonly available in the market, and the telescopic rod 210 may move up and down, so as to drive the industrial camera 300 to ascend or descend, so that the industrial camera 300 may adjust the focal length more conveniently, and better recognize the DPM code. Meanwhile, the first end of the first supporting rod 220 is sleeved on the telescopic rod 210, and the first supporting rod 220 can rotate around the telescopic rod 210, so that the angle of a lens of the industrial camera 300 can be adjusted, the DPM codes at different positions can be conveniently scanned, and the scannable area is large.
As shown in fig. 2, in some embodiments of the present invention, the mounting bracket 200 further includes a first light source mounting rod 230, one end of the first light source mounting rod 230 is movably connected to the extendable rod 210 and can rotate around the extendable rod 210, the other end of the first light source mounting rod 230 is connected to the lighting device 500, the lighting device 500 is an LED ring light source, the middle of the lighting device 500 is hollow, and the lens of the industrial camera 300 is located above the hollow portion of the lighting device 500. By adopting the LED ring light source, the lighting device 500 can sufficiently illuminate the DPM code, so that the industrial camera 300 can conveniently recognize the DPM code, the LED ring light source is simple in arrangement, and the light source controller 600 can also conveniently control the brightness of the LED ring light source. In addition, one end of the first light source mounting rod 230 is sleeved on the extendable rod 210 and can rotate around the extendable rod 210, so that the illumination area of the illumination device 600 can be adjusted.
As shown in fig. 3, in some embodiments of the present invention, the mounting bracket 200 includes a fixing rod 240 and a second supporting rod 250, the lower end of the fixing rod 240 is detachably disposed on the inspection table 100, the first end of the second supporting rod 250 is movably connected to the fixing rod 240 and can move up and down along the fixing rod 240, the industrial camera 300 is movably disposed at the second end of the second supporting rod 250, and the angle of the lens of the industrial camera 300 is adjustable. Specifically, the lower end of the fixing rod 240 is detachably disposed on the inspection station 100, so that the entire mounting bracket 200 can be conveniently detached and mounted. The first end of the second support rod 250 is movably connected with the fixing rod 240 and can move up and down along the fixing rod 240, and the industrial camera 300 is driven to ascend or descend in the ascending or descending process of the second support rod 250, so that the focal length of the industrial camera 300 is convenient to adjust. The industrial camera 300 is movably disposed at the second end of the second support rod 250, and the angle of the lens of the industrial camera 300 is adjustable, so that the area where the industrial camera 300 can scan is large, and DPM codes at different positions can be recognized.
As shown in fig. 3, in some embodiments of the present invention, the first end of the second supporting rod 250 is movably connected to the fixing rod 240 through a universal joint 270, and the fixing rod 240 is sleeved with the universal joint 270. The second support rod 250 is movably connected with the fixing rod 240 by using the universal joint 270, so that the second support rod 250 can be moved up and down conveniently, thereby adjusting the focal length of the industrial camera 300.
In some embodiments of the present invention, the lower end of the fixing rod 240 is screwed with the upper surface of the inspection table 100. Through set up the external screw thread at the lower extreme of dead lever 240, set up corresponding screw hole at the upper surface that examines test table 100, just can realize dead lever 240 and examine test table 100's threaded connection for the dismantlement and the installation of whole installing support 200 become more convenient. Of course, the lower end of the fixing rod 240 may be movably connected to the upper surface of the testing table 100 by a common method such as a snap-fit connection or a fitting connection.
In some embodiments of the present invention, the second end of the second support rod 250 is provided with a universal cradle head, and the industrial camera 300 is movably connected to the second support rod 250 through the universal cradle head. The movable connection between the industrial camera 300 and the second support rod 250 is realized by adopting the universal holder, so that the adjustment of the lens angle of the industrial camera 300 is more convenient, and the area which can be scanned by the industrial camera 300 is larger. The universal tripod head is a common spherical tripod head, and the lens angle of the industrial camera 300 can be conveniently adjusted. It can be understood that the arrangement of the gimbal and the industrial camera 300 is a conventional technical means known to those skilled in the art, and therefore, the arrangement of the gimbal and the industrial camera 300 is not described herein in detail.
As shown in fig. 3, in some embodiments of the present invention, the mounting bracket 200 further includes a second light source mounting rod 260, one end of the second light source mounting rod 260 is movably connected to the fixing rod 240 and can move up and down along the fixing rod 240, the other end of the second light source mounting rod 260 is connected to the lighting device 500, the lighting device 500 is an LED ring light source, the middle of the lighting device 500 is hollow, and the lens of the industrial camera 300 is located above the hollow portion of the lighting device 500. Specifically, the second light source mounting rod 260 may also be connected to the fixing rod 240 using a universal joint 270, so that the second light source mounting rod 260 may also move up and down, and the second light source mounting rod 260 may rotate around the fixing rod 240, so that the illumination area of the illumination apparatus 600 may be adjusted.
In the description herein, references to the description of the term "one embodiment," "a further embodiment," "some specific embodiments," or "some examples," etc., mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A machine vision-based DPM code detection system, comprising:
the detection table is used for placing a to-be-detected piece with a DPM code;
mounting a bracket;
the industrial camera is movably connected with the mounting bracket, is positioned above the detection table and can move up and down relative to the detection table;
the industrial camera is used for recognizing the DPM code and transmitting the acquired image information to the upper computer, and the upper computer analyzes and processes the image information;
an illumination device located above the inspection station, the illumination device for illuminating the DPM code.
2. The machine-vision-based DPM code detection system of claim 1, further comprising a light source controller electrically connected to the illumination device to control an illumination state of the illumination device.
3. The machine-vision-based DPM code detection system of claim 1, wherein the illumination device comprises a number of LED lights arranged around the industrial camera.
4. The machine-vision-based DPM code detection system of claim 1, wherein the mounting bracket comprises:
the telescopic rod is arranged on the detection table;
first bracing piece, first end with scalable pole swing joint can wind scalable pole rotates, industry camera set up in the second end of first bracing piece.
5. The machine vision-based DPM code detection system as claimed in claim 4, wherein the mounting bracket further comprises a first light source mounting rod, one end of the first light source mounting rod is movably connected with the telescopic rod and can rotate around the telescopic rod, the other end of the first light source mounting rod is connected with the lighting device, the lighting device is an LED annular light source, the middle part of the lighting device is hollow, and the lens of the industrial camera is located above the hollow part of the lighting device.
6. The machine-vision-based DPM code detection system of claim 1, wherein the mounting bracket comprises:
the lower end of the fixed rod is detachably arranged on the detection table;
and the first end of the second supporting rod is movably connected with the fixed rod and can move up and down along the fixed rod, the industrial camera is movably arranged at the second end of the second supporting rod, and the angle of the lens of the industrial camera is adjustable.
7. The machine vision-based DPM code detection system of claim 6, wherein the first end of the second support rod is movably connected to the fixed rod by a universal joint, and the universal joint is sleeved on the fixed rod.
8. The machine-vision-based DPM code detection system of claim 6, wherein the lower end of the fixing rod is threaded with the upper surface of the detection table.
9. The machine vision-based DPM code detection system of any one of claims 6 to 8, wherein a gimbal is provided at the second end of the second support bar, and the industrial camera is movably connected to the second support bar through the gimbal.
10. The machine vision-based DPM code detection system according to any one of claims 6 to 8, wherein the mounting bracket further comprises a second light source mounting rod, one end of the second light source mounting rod is movably connected with the fixing rod and can move up and down along the fixing rod, the other end of the second light source mounting rod is connected with the illumination device, the illumination device is an LED annular light source, the middle part of the illumination device is hollow, and the lens of the industrial camera is located above the hollow part of the illumination device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023038998.4U CN213987520U (en) | 2020-12-15 | 2020-12-15 | DPM code detection system based on machine vision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023038998.4U CN213987520U (en) | 2020-12-15 | 2020-12-15 | DPM code detection system based on machine vision |
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| CN213987520U true CN213987520U (en) | 2021-08-17 |
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| CN202023038998.4U Active CN213987520U (en) | 2020-12-15 | 2020-12-15 | DPM code detection system based on machine vision |
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