CN116879167A - Editable stereoscopic light source, method and equipment for defect detection - Google Patents
Editable stereoscopic light source, method and equipment for defect detection Download PDFInfo
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- 230000007547 defect Effects 0.000 title claims abstract description 63
- 238000001514 detection method Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004891 communication Methods 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 10
- 230000000007 visual effect Effects 0.000 abstract description 7
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention relates to a machine vision illumination technology, and discloses an editable three-dimensional light source, a method and equipment for defect detection, wherein the editable three-dimensional light source is arranged in a hemispherical light source machine structure, and comprises the following components: the three-dimensional light source module comprises a preset number of light-emitting channels, and the light-emitting channels are attached to the inner wall of the hemispherical light source machine structure; the control module comprises a control circuit and control software, wherein the control circuit is used for controlling the light-emitting channels to emit light, and the control software is used for selecting the light-emitting paths of the light-emitting channels and adjusting the light-emitting parameters of the light-emitting channels according to the object to be detected. The luminous parameters of each path of luminous channel can be edited according to the object to be detected, defects of different types and positions can be detected according to different luminous parameters and luminous channels at different positions, multi-angle lighting of the object to be detected is realized, and the problem that a light source needs to be customized again when the visual detection system is applied to different objects to be detected can be solved.
Description
Technical Field
The invention relates to the technical field of machine vision illumination, in particular to an editable three-dimensional light source, method and equipment for defect detection.
Background
With the development of science and technology, the defect detection of products is gradually carried out by adopting a machine vision detection method in mass industrial production, so that the automation degree and the production efficiency of production are greatly improved.
At present, when a machine vision detection method is used for detecting product defects, corresponding vision light sources such as a strip light source, an annular light source, a dome light source, a four-side light source and the like are required to be selected in order to achieve the optimal detection effect of the detected product, different vision detection systems are required to customize different types of vision light sources, the customization verification period of the vision light sources is long, and the vision light sources are frequently replaced according to the detected product, so that the production efficiency and the production cost are affected.
Disclosure of Invention
The invention provides an editable three-dimensional light source, an editable three-dimensional light source device and a computer readable storage medium for defect detection, and mainly aims to solve the problem that the light source needs to be customized again when a visual detection system is applied to different detection objects.
In order to achieve the above object, the present invention provides an editable stereoscopic light source for defect detection, the editable stereoscopic light source is disposed in a hemispherical light source machine structure, the editable stereoscopic light source includes:
the three-dimensional light source module comprises a preset number of light-emitting channels, and the light-emitting channels are attached to the inner wall of the hemispherical light source machine structure;
the control module comprises a control circuit and control software, wherein the control circuit is used for controlling the luminous channels to emit light, and the control software is used for selecting the luminous paths of the luminous channels and adjusting the luminous parameters of the luminous channels according to the object to be detected.
Optionally, any one of the light-emitting channels includes: red light emitting unit, green light emitting unit, blue light emitting unit, (CIE) a light emitting unit, (CIE) D50 light emitting unit, and (CIE) D65 light emitting unit.
Optionally, the control software adjusts the flicker frequency of any one light emitting unit of the light emitting channel according to the shooting frequency of the preset camera.
Optionally, the light emitting parameters of the light emitting channel include: luminance and color temperature of light emission.
Optionally, the selecting the number of light emitting paths of the light emitting channel and adjusting the light emitting parameters of the light emitting channel according to the object to be detected includes:
selecting the number of light-emitting paths of the light-emitting channel according to the position of the object to be detected;
acquiring exposure parameters of a preset camera;
and adjusting the luminous brightness and the luminous color temperature of the luminous channel according to the exposure parameters and the defect type of the object to be detected.
Optionally, the control module further comprises a storage unit for storing the number of the luminous paths and the luminous parameters of the luminous channel and the labels of the corresponding objects to be detected.
Optionally, the light emitting channel has an angle with the horizontal in the range of 4.5 ° to 60 °.
Optionally, the control circuit includes: RS232 communication interface circuit, MCU microcontroller, PWM modulation circuit and MOS pipe switch circuit.
In order to solve the above problems, the present invention further provides a method for performing defect detection by using the editable stereoscopic light source, the method comprising:
selecting the number of luminous paths of the luminous channel of the editable stereoscopic light source according to the object to be detected and adjusting the luminous parameters of the luminous channel;
controlling the luminous channels with the corresponding paths to be lightened according to the luminous paths and luminous parameters of the luminous channels;
under the condition that the luminous channels with the corresponding paths are lightened, acquiring images to be detected of the objects to be detected by using a preset camera;
and identifying the defects of the image to be detected based on a preset defect identification algorithm to obtain a defect detection result of the object to be detected.
In order to solve the above-mentioned problems, the present invention also provides an apparatus for defect detection, the apparatus comprising the editable stereoscopic light source for defect detection as claimed in any one of claims 1 to 8.
The editable three-dimensional light source, the editable three-dimensional light source and the editable three-dimensional light source equipment for defect detection provided by the invention select the number of the light-emitting channels and adjust the light-emitting parameters of the light-emitting channels according to the object to be detected, and light-emitting channels with the corresponding number of the channels are lightened by utilizing a control circuit in the control module according to the number of the light-emitting channels and the light-emitting parameters of the light-emitting channels, and under the condition that the light-emitting channels with the corresponding number of the channels are lightened, the image to be detected of the object to be detected is acquired by utilizing a preset camera; based on a preset defect recognition algorithm, defects of the image to be detected are recognized, a defect detection result of the object to be detected is obtained, the luminous parameters of each path of luminous channel can be edited according to the object to be detected, defects of different types and positions can be detected according to different luminous parameters and luminous channel luminescence of different positions, multi-angle polishing of the object to be detected is achieved, and the problem that a light source needs to be customized again when a visual detection system is applied to different detection objects can be solved.
Drawings
FIG. 1 is a schematic diagram of an editable stereoscopic light source for defect detection according to an embodiment of the invention;
FIGS. 2-6 are schematic views illustrating different channel illumination of an editable stereoscopic light source for defect detection according to an embodiment of the invention;
fig. 7 is a schematic side view of a stereoscopic light source module according to an embodiment of the invention;
FIG. 8 is a flow chart illustrating a method for defect detection according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of an apparatus for defect detection;
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The editable stereoscopic light source, method and apparatus for defect detection of the present invention are described below with reference to fig. 1-9.
Referring to fig. 1, a schematic diagram of an editable stereoscopic light source for defect detection according to an embodiment of the invention is shown. The editable stereoscopic light source provided by the invention can realize the detection of different defect types and different defect positions of various detection objects by adapting to different visual detection systems.
In this embodiment, the editable stereoscopic light source for defect detection is disposed in a hemispherical light source machine structure, and includes: the stereoscopic light source module 10 and the control module 11.
The three-dimensional light source module 10 comprises a preset number of light-emitting channels, and the light-emitting channels are attached to the inner wall of the hemispherical light source structure;
preferably, in the embodiment of the present invention, the three-dimensional light source module 10 includes 48 paths of light emitting channels (as shown in fig. 2) that are annularly arranged, the light emitting channels are uniformly distributed or unevenly distributed and attached to the inner wall of the hemispherical light source structure according to requirements, the light emitting parameters of each path of light emitting channels can be edited according to specific requirements, defects of objects to be detected in different types and different positions can be detected according to different light emitting parameters and light emitting channels in different positions, and the heights between the hemispherical light source structure and the illuminated surface of the object to be detected are adjustable, so as to realize multi-angle lighting of the object to be irradiated.
The control module 11 includes a control circuit and control software, wherein the control circuit is used for controlling the light-emitting channels to emit light, and the control software is used for selecting the number of light-emitting paths of the light-emitting channels and adjusting the light-emitting parameters of the light-emitting channels according to the object to be detected.
In the embodiment of the present invention, the control module 11 selects the number of light emitting paths of the light emitting channel and adjusts the light emitting parameters of the light emitting channel according to the object to be detected, and the control circuit controls the light emitting channel to emit light according to the number of light emitting paths and the light emitting parameters. The control circuit can independently control the luminous parameters of any one or more luminous channels in the three-dimensional light source module, can randomly combine the luminous channels to emit light according to the luminous channel number, and is widely suitable for detecting different defect types and different defect positions of various detection objects by different visual detection systems without replacing the light source again.
In a preferred embodiment, any one of the light-emitting channels includes: red light emitting unit, green light emitting unit, blue light emitting unit, (CIE) a light emitting unit, (CIE) D50 light emitting unit, and (CIE) D65 light emitting unit.
Further, the control software adjusts the flicker frequency of any one light-emitting unit of the light-emitting channel according to the shooting frequency of the preset camera, so that energy can be saved and the service life of the light-emitting unit can be prolonged. For example, the control software may adjust the flicker frequency of any of a red light emitting unit, a green light emitting unit, a blue light emitting unit, a (CIE) a light emitting unit, a (CIE) D50 light emitting unit, and a (CIE) D65 light.
In a preferred embodiment, the light emitting parameters of the light emitting channel include: luminance and color temperature of light emission.
The control software adjusts the light emitting parameters of the light emitting channel by adopting the following method:
selecting the number of light-emitting paths of the light-emitting channel according to the position of the object to be detected;
acquiring exposure parameters of a preset camera;
and adjusting the luminous brightness and the luminous color temperature of the luminous channel according to the exposure parameters and the defect type of the object to be detected.
In the embodiment of the invention, the light-emitting brightness, the light-emitting color temperature and the flicker frequency of the three-dimensional light source module 10 are adjusted by matching with the exposure parameters and the flicker frequency of the preset camera, so that the preset camera takes a clear picture of the object to be detected.
As shown in the black area of fig. 2, in one embodiment of the present invention, the control module 11 controls the red light emitting units of the 17 th, 18 th, 19 th, 20 th, 21 st, 22 nd, 23 th, 24 th, 25 th, 26 th, 27 th, 28 th, 29 th, 30 th, 31 th and 32 th light emitting channels to be turned on, so as to present a ring-shaped light source effect.
As shown in the black area of fig. 3, in another embodiment of the present invention, the control module 11 controls the (CI E) D50 light emitting units of the 17 th, 18 th, 19 th, 20 th, 21 th, 22 th, 23 th, 24 th, 25 th, 26 th, 27 th, 28 th, 29 th, 30 th, 31 th, 32 th, 33 th, 34 th, 35 th, 36 th, 37 th, 38 th, 39 th, 40 th, 41 th, 42 th, 43 th, 44 th, 45 th, 46 th, 47 th, 48 th light emitting channels to be lighted, which is presented as a dome light source effect.
As shown in the black area of fig. 4, in another embodiment of the present invention, the control module 11 controls the blue light emitting units of the 1 st, 2 nd, 3 rd, 4 th, 5 th, 6 th, 7 th, 8 th, 9 th, 10 th, 11 th, 12 th, 13 th, 14 th, 15 th and 16 th light emitting channels to be turned on, so as to present a four-sided light source effect.
As shown in the black area of fig. 5, in another embodiment of the present invention, the control module 11 controls the blue light emitting units of the 1 st, 2 nd, 3 nd, 4 th, 5 th, 6 th, 7 th, 8 th, 9 th, 10 th, 11 th, 12 th, 13 th, 14 th, 15 th, 16 th, 17 th, 18 th, 19 th, 20 th, 21 th, 22 th, 23 th, 24 th, 25 th, 26 th, 27 th, 28 th, 29 th, 30 th, 31 th, 32 th, 33 th, 34 th, 35 th, 36 th, 37 th, 38 th, 39 th, 40 th, 41 th, 42 th, 43 th, 44 th, 45 th, 46 th, 47 th, 48 th light emitting channels to be lighted, which is presented as a combination effect of the four-side light source and the dome light source.
As shown in the black area of fig. 6, in another embodiment of the present invention, the control module 11 controls the yellow light emitting units of the 25 th, 47 th, 37 th, 29 th, 36 th and 28 th light emitting channels to be turned on.
Further, fig. 7 demonstrates a side view of the stereoscopic light source module 10. The light-emitting channel 1 is a light-emitting channel positioned at the top of the hemispherical light source machine structure, such as the 41 st, 42 nd, 43 nd, 44 nd, 45 th, 46 th, 47 th and 48 th light-emitting channels in fig. 2; the light-emitting channel 2 is a light-emitting channel located at the bottom of the hemispherical light source structure, for example, the 1 st, 2 nd, 3 rd and 4 th light-emitting channels in fig. 2. The angle of the light-emitting channels 1 and 2 to the horizontal plane ranges from 4.5 ° to 60 °. The light-emitting channels can be uniformly distributed or unevenly distributed as required, the coverage angle range is wide, the height between the hemispherical light source structure and the irradiated surface of the object to be detected is adjustable, and the multi-angle irradiation of the irradiated object is realized. As in fig. 7, the angle of the light-emitting channel 1 to the horizontal plane is 4.5 °, and the angle of the light-emitting channel 2 to the horizontal plane is 60 °.
Further, the control module also comprises a storage unit for storing the number of the luminous paths of the luminous channel, the luminous parameters and the labels of the corresponding objects to be detected.
Specifically, when the number of light-emitting paths and the light-emitting parameters of the light-emitting channel meet the detection requirement, the number of light-emitting paths and the light-emitting parameters of the light-emitting channel and the labels of the corresponding objects to be detected are stored in the storage unit. In the subsequent detection, the number of the luminous paths and the luminous parameters of the luminous channel can be automatically called, and the object to be detected is detected.
In a preferred embodiment, the control circuit comprises: RS232 communication interface circuit, MCU microcontroller, PWM modulation circuit and MOS pipe switch circuit. The control circuit can also comprise a power supply conversion circuit which converts 220V mains supply into voltage corresponding to the MCU microcontroller.
In one embodiment of the invention, the RS232 communication interface circuit transmits the number of light emitting paths and the light emitting parameters set by the control software to the MCU, and the MCU analyzes the number of light emitting paths and the light emitting parameters, controls the PWM modulation circuit to generate a PWM value according to the analysis result, and inputs the PWM value to the MOS switch circuit to control the three-dimensional light source module to emit light.
In one embodiment of the present invention, the editable stereoscopic light source for defect detection may also interact with a PC end, and the PC end opens corresponding host computer software, selects a corresponding port and a baud rate, clicks on a software interface to set a corresponding number of light-emitting channels and brightness, and the host computer software combines the configured different numbers of light-emitting channels and brightness to generate different lighting combinations, analyzes data according to a communication protocol to generate a corresponding control instruction, and issues the control instruction to the editable stereoscopic light source for defect detection through a serial port.
In one embodiment of the invention, the image to be detected under the current lighting parameters can be displayed in real time in the corresponding upper computer software of the PC end, so that the lighting parameters and the number of light emitting channels can be conveniently and timely adjusted.
In one embodiment of the invention, the three-dimensional light source module interacts with the control software in real time, so that mode setting, luminous channel number setting, luminous parameter setting and defect picture of an object to be detected can be realized. Through real-time interaction of the control software and the upper computer software, different types of defect detection can be realized by matching with a deep learning defect recognition algorithm.
The editable three-dimensional light source for defect detection provided by the invention selects the number of the light-emitting channels and adjusts the light-emitting parameters of the light-emitting channels according to the object to be detected by control software in the control module, and according to the number of the light-emitting channels and the light-emitting parameters, the control circuit in the control module is utilized to light the light-emitting channels with the corresponding number of the channels, and under the condition that the light-emitting channels with the corresponding number of the channels are lighted, a preset camera is utilized to collect the image to be detected of the object to be detected; based on a preset defect recognition algorithm, defects of the image to be detected are recognized, a defect detection result of the object to be detected is obtained, the luminous parameters of each path of luminous channel can be edited according to the object to be detected, defects of different types and positions can be detected according to different luminous parameters and luminous channel luminescence of different positions, multi-angle polishing of the object to be detected is achieved, and the problem that a light source needs to be customized again when a visual detection system is applied to different detection objects can be solved.
Fig. 8 is a flowchart of a method for defect detection according to an embodiment of the present invention.
Based on fig. 8, a method for defect detection provided by an embodiment of the present invention includes:
s1, selecting the number of the luminous paths of the luminous channel of the editable stereoscopic light source shown in the figure 1 according to an object to be detected, and adjusting the luminous parameters of the luminous channel;
s2, controlling the luminous channels with the corresponding paths to be lightened according to the luminous paths and luminous parameters of the luminous channels;
according to the embodiment of the invention, the number of the light-emitting channels is selected according to the object to be detected, the light-emitting parameters of the light-emitting channels are regulated, the control circuit controls the light-emitting channels to emit light according to the number of the light-emitting channels and the light-emitting parameters, the light-emitting parameters of any one or more light-emitting channels in the three-dimensional light source module can be independently controlled, the light-emitting channels can be randomly combined according to the number of the light-emitting channels to emit light, and the three-dimensional light source module is widely suitable for detecting different defect types and different defect positions of various detected objects by different visual detection systems without replacing a light source again.
S3, under the condition that the luminous channels with the corresponding paths are lightened, acquiring images to be detected of the objects to be detected by using a preset camera;
s4, identifying defects of the image to be detected based on a preset defect identification algorithm, and obtaining a defect detection result of the object to be detected.
In the embodiment of the invention, the image to be detected is subjected to image processing, the defect characteristics of the image after the image processing are extracted, and the defect detection is performed by using a pattern recognition algorithm or a machine learning algorithm.
Fig. 9 illustrates a schematic structure of an apparatus for defect detection, as shown in fig. 9, the apparatus may include: processor (processor) 20, communication interface (Communications Interface) 21, memory (memory) 22, stereoscopic light source 23. Communication among the processor 20, the memory 22, the communication interface 21, and the stereo light source 23 is completed through the communication bus 24. Processor 20 may include an MCU microcontroller for invoking and executing logic instructions in memory 22 to implement the functionality of an editable stereoscopic light source for defect detection. The communication interface 21 may be an interface corresponding to the RS232 communication interface circuit. The memory 22 may be a memory unit in the control module 11. The stereoscopic light source 23 may be the stereoscopic light source module 10 described in fig. 1.
Further, the logic instructions in the memory 22 described above may be implemented in the form of software functional units and stored in a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program, the computer program being storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of implementing the functionality of the editable stereoscopic light source for defect detection provided by the systems described above.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Furthermore, it is evident that the word "comprising" does not exclude other elements or steps, and that the singular does not exclude a plurality. A plurality of units or means recited in the system claims can also be implemented by means of software or hardware by means of one unit or means. The terms first, second, etc. are used to denote a name, but not any particular order.
Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. An editable stereoscopic light source for defect detection, the editable stereoscopic light source being disposed within a hemispherical light source machine structure, the editable stereoscopic light source comprising:
the three-dimensional light source module comprises a preset number of light-emitting channels, and the light-emitting channels are attached to the inner wall of the hemispherical light source machine structure;
the control module comprises a control circuit and control software, wherein the control circuit is used for controlling the luminous channels to emit light, and the control software is used for selecting the luminous paths of the luminous channels and adjusting the luminous parameters of the luminous channels according to the object to be detected.
2. The editable stereoscopic light source of claim 1, wherein any one of the light emitting channels comprises: red light emitting unit, green light emitting unit, blue light emitting unit, (CIE) a light emitting unit, (CIE) D50 light emitting unit, and (CIE) D65 light emitting unit.
3. The editable stereoscopic light source according to claim 2, wherein the control software adjusts a flicker frequency of any one of the light emitting units of the light emitting channel according to a photographing frequency of a preset camera.
4. The editable stereoscopic light source of claim 1, wherein the lighting parameters of the lighting channel include: luminance and color temperature of light emission.
5. The editable stereoscopic light source of claim 4, wherein the selecting the number of light emission paths of the light emission channel and adjusting the light emission parameters of the light emission channel according to the object to be detected comprises:
selecting the number of light-emitting paths of the light-emitting channel according to the position of the object to be detected;
acquiring exposure parameters of a preset camera;
and adjusting the luminous brightness and the luminous color temperature of the luminous channel according to the exposure parameters and the defect type of the object to be detected.
6. The editable stereoscopic light source of claim 1, wherein the control module further comprises:
and the storage unit is used for storing the number of the luminous paths of the luminous channel, the luminous parameters and the labels of the corresponding objects to be detected.
7. The editable stereoscopic light source of claim 1, wherein the light emitting channel is at an angle in the range of 4.5 ° to 60 ° to the horizontal.
8. The editable stereoscopic light source of claim 1, wherein the control circuit comprises: RS232 communication interface circuit, MCU microcontroller, PWM modulation circuit and MOS pipe switch circuit.
9. A method for defect detection using the editable stereoscopic light source of claim 1, the method comprising:
selecting the number of the luminous paths of the luminous channel of the editable stereoscopic light source according to the object to be detected and adjusting the luminous parameters of the luminous channel;
controlling the luminous channels with the corresponding paths to be lightened according to the luminous paths and luminous parameters of the luminous channels;
under the condition that the luminous channels with the corresponding paths are lightened, acquiring images to be detected of the objects to be detected by using a preset camera;
and identifying the defects of the image to be detected based on a preset defect identification algorithm to obtain a defect detection result of the object to be detected.
10. An apparatus for defect detection, characterized in that it comprises an editable stereoscopic light source according to any one of claims 1 to 8.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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