CN210401249U - Polar plate recognition device - Google Patents
Polar plate recognition device Download PDFInfo
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- CN210401249U CN210401249U CN201920252980.2U CN201920252980U CN210401249U CN 210401249 U CN210401249 U CN 210401249U CN 201920252980 U CN201920252980 U CN 201920252980U CN 210401249 U CN210401249 U CN 210401249U
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Abstract
The utility model discloses a polar plate recognition device, which comprises two industrial cameras respectively arranged right ahead and right behind the polar plate; and the upper computer is electrically connected with the two industrial cameras. The utility model discloses a device can realize the automatic of the surface deposit of polar plate and the loss degree of polar plate and electrically conductive roof beam differentiates, has the advantage that the structure is succinct, recognition speed is fast, can improve production efficiency.
Description
Technical Field
The utility model relates to an automatic control field, especially a polar plate recognition device.
Background
Taking metal zinc as an example, large-scale zinc smelting enterprises in China basically adopt an automatic zinc stripping production line. In the process of stripping the zinc sheet, the polar plate may have the phenomena of damage to the surface of the polar plate or an insulating strip, deformation of a conductive beam and the like because the whole or part of the zinc sheet is not successfully stripped in the electrodeposition process, the zinc stripping and washing processes. The identification of present polar plate mainly distinguishes through the manual work, and accuracy, normalization and recognition speed easily receive subjective factor's influence, need the manual work to carry out a large amount of simple repetitive work, do not have an effectual recognition device to carry out automatic identification to the polar plate at present.
Disclosure of Invention
The utility model aims to solve the technical problem that, it is not enough to prior art, provide a polar plate recognition device, improve recognition rate, reduce the discernment cost.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a plate identification device comprising:
the two industrial cameras are respectively arranged right in front of and right behind the polar plate;
and the upper computer is electrically connected with the two industrial cameras.
The utility model discloses an identification means still includes two shadowless light sources, set up respectively in the camera lens of two industrial cameras circles outward, and the shadowless light source shines after the diffuse catadioptric on the polar plate. The shadowless light source can strengthen the surface characteristics of the polar plate, reduce the influence of other light sources on the surface characteristics of the polar plate and improve the identification precision.
The two industrial cameras are electrically connected with the upper computer through a network switch. The network switch can improve the transmission rate of the polar plate image.
The two industrial cameras are respectively arranged at the center of the front part and the center of the rear part of the polar plate, and the connecting line of the central points of the two industrial cameras is perpendicular to the plane of the polar plate. And the distortion of the image caused by overlarge inclination of the visual angle is avoided.
Gaps are arranged between the two industrial cameras and the polar plate. The distance between the industrial camera and the polar plate can be set according to the size of the polar plate, the size of the photosensitive device and the focal length of the lens, and the definition and accuracy of an image are guaranteed.
The gap may be calculated according to the formula f = V × D/V = H × D/H. Wherein f is the focal length of the lens; v: the longitudinal size of the photosensitive device; d: the distance between the lens and the shooting object; v: shooting the longitudinal size of the object; h: the longitudinal size of the photosensitive device; h: the longitudinal size of the subject is photographed. Take the example of the photo sensor 2/3 (V =6.6mm, H =8.8mm), the plate area 3.2 square meters (V =1600mm, H =2000 mm), and the lens focal length 4.5 mm. Dv =1091mm, Dh =1023mm, and the larger value D =1023mm can be calculated from the formula.
The utility model discloses the theory of operation of device as follows: the two industrial color cameras respectively shoot the front and back surfaces of the detected polar plate, and the shadowless light source on the lens of the industrial color camera is refracted by the diffuse reflection plate and then irradiates the polar plate so as to strengthen the surface characteristics of the polar plate. The computer reads the real-time image of the industrial camera through the network cable, stores the image in the hard disk of the computer, and realizes the recognition of phenomena of the success of the non-stripping of all or part of the deposit, the damage of the surface of the polar plate or the insulating strip, the deformation of the conductive beam and the like through the image recognition software
The recognition software used a halcon from MVTec, germany. halcon is a well-established suite of machine vision algorithms developed by german corporation. The halcon comprises modules of template matching (positioning and comparing), color recognition, morphological circle recognition, edge extraction, contour processing and the like, and the recognition platform can be quickly built according to requirements by using the software.
Compared with the prior art, the utility model discloses the beneficial effect who has does: the utility model discloses a device can realize the automatic of the surface deposit of polar plate and the loss degree of polar plate and electrically conductive roof beam differentiates, has the advantage that the structure is succinct, recognition speed is fast, can improve production efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the polar plate recognition device of the present invention.
Detailed Description
As shown in fig. 1, the plate recognition device of the embodiment of the present invention includes a color industrial camera 1, an shadowless light source 2, a gigabit network switch 3 and a computer 4.
The two industrial color cameras are generally positioned in the centers of the front and the back of the polar plate and are perpendicular to the plane of the polar plate, so that the distortion of an image caused by overlarge inclination of a visual angle is avoided. The industrial camera is kept at a certain distance from the polar plate. The distance between the industrial camera and the polar plate can be set according to the size of the polar plate, the size of the photosensitive device and the focal length of the lens, and the definition and accuracy of an image are guaranteed.
The shadowless light source is positioned on the outer ring of the lens of the color industrial camera and irradiates the polar plate after being refracted by the diffuse reflection plate so as to strengthen the surface characteristics of the polar plate, reduce the influence of other light sources on the surface characteristics of the polar plate and improve the identification precision.
The kilomega network switch is used for physically connecting two color industrial cameras and a computer through a kilomega network cable, and the transmission rate of polar plate images is improved.
And the computer (upper computer) compares the received polar plate image with a reference image library, finds out the difference between the polar plate image and the reference image library through identification software, or directly analyzes the surface characteristics of the polar plate image through image identification software, and finally judges whether the target polar plate is qualified according to preset parameter indexes. And the number, period, position and range of the failure rate of the pole plate are subjected to statistical analysis. The reasonable pole plate preparation rate can be set conveniently by enterprises through statistics of the damage rate of the pole plates, the cost of the pole plates of the enterprises is reduced, and the production efficiency of the enterprises is improved. Through statistics and periodic analysis of the substandard frequency of the polar plate, the method can help enterprises to find and analyze the change of the electrolysis process parameters and help the enterprises to improve the electrolysis process parameters.
The working principle of the device is as follows: the two color industrial cameras 1 respectively shoot images of the front side and the back side of the detected polar plate, and the shadowless light source on the lens of the color industrial camera is refracted by the diffuse reflection plate and then irradiates the polar plate so as to strengthen the surface characteristics of the polar plate. The computer reads the real-time image of the industrial camera through the network cable, stores the real-time image in the hard disk of the computer, and realizes the recognition of phenomena of the success of the peeling of all or part of the deposit, the damage of the surface of the polar plate or the insulating strip, the deformation of the conductive beam and the like through a pattern recognition algorithm.
The utility model discloses the host computer indicates installs Microsoft windows7 operating system, can run German MVTec HALCON machine vision software package to be equipped with the personal computer, workstation or the server of more than one 10/100/1000M self-adaptation rj45 interface. A network switch refers to an ISO layer two that operates based on MAC addresses and is equipped with more than one 10/100/1000M adaptive rj45 interface. The 10/100/1000M self-adaptive rj45 interface of the network switch is connected with the gigabit rj45 Ethernet interface of the upper computer and the gigabit rj45 Ethernet interface of the industrial camera through the ultra-six network lines to connect the upper computer and the industrial camera into a gigabit local area network, so that the upper computer can quickly read the real-time image information of the industrial camera.
Claims (5)
1. A plate recognition apparatus, comprising:
the two industrial cameras are respectively arranged right in front of and right behind the polar plate;
the upper computer is electrically connected with the two industrial cameras;
and the two shadowless light sources are respectively arranged on the outer rings of the lenses of the two industrial cameras and are irradiated onto the polar plate after being subjected to diffuse catadioptric action.
2. The plate recognition apparatus of claim 1, wherein the two industrial cameras are electrically connected to the upper computer through a network switch.
3. The plate recognition device of claim 1, wherein the two industrial cameras are respectively arranged at the center of the front and the center of the rear of the plate, and a connecting line of the center points of the two industrial cameras is perpendicular to the plane of the plate.
4. The plate recognition device of any one of claims 1 to 3, wherein a gap is provided between each of the two industrial cameras and the plate.
5. The plate recognition device of any one of claims 1 to 3, wherein the gap between the lenses of the two industrial cameras and the plate is 1023 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018202826378 | 2018-02-28 | ||
| CN201820282637 | 2018-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210401249U true CN210401249U (en) | 2020-04-24 |
Family
ID=70336197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920252980.2U Active CN210401249U (en) | 2018-02-28 | 2019-02-28 | Polar plate recognition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210401249U (en) |
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2019
- 2019-02-28 CN CN201920252980.2U patent/CN210401249U/en active Active
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