CN209014481U - Vision detection system - Google Patents
Vision detection system Download PDFInfo
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- CN209014481U CN209014481U CN201821691224.1U CN201821691224U CN209014481U CN 209014481 U CN209014481 U CN 209014481U CN 201821691224 U CN201821691224 U CN 201821691224U CN 209014481 U CN209014481 U CN 209014481U
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Abstract
This application involves a kind of vision detection systems, comprising: light source shielded box, imaging source, camera, line-structured light light source and computer equipment, the imaging source, the camera and the line-structured light light source are installed in inside the light source shielded box；The camera is connect with the computer equipment；Extraneous light is isolated with image-forming module for being isolated for the light source shielded box, forms vision-based detection darkroom；The imaging source is used to provide photographic light sources for the camera；The line-structured light light source is for providing linear beam；The image information that the computer equipment is used to be shot according to the camera carries out quality testing to target object；The quality testing includes gray scale detection and/or defects detection.The information extraction of target zone may be implemented in vision detection system provided by the present application, improves defects detection accuracy rate.
Description
Technical field
The utility model relates to artificial intelligence field more particularly to a kind of vision detection systems.
Background technique
With in industrial production production line it is increasingly automated, factory requires increasingly the detection means of product quality
It is high.At present, it is desirable that gradually increased using the field that image procossing and computer vision technique detect product quality, than
Such as the surfaces such as metal (especially steel plate) surface, paper printed matter, textile, ceramic tile, glass, the timber produced are lacked
Sunken detection.
One is carrying out quality testing to product using human eye in traditional detection mode, there are also one is machine detection,
Whether machine replaces human eye detection target object or picture qualified using CCD or camera, can prevent because of human eye fatigue
Generate erroneous judgement.
But the uncontrollable or external light source interference problem of the above-mentioned generally existing exposure of machine detection mode, it be easy to cause
Test result consistency is bad, so that testing result accuracy is poor.
Utility model content
Based on this, it is necessary to provide a kind of new vision detection system, regarding to the issue above to improve to target surface
The accuracy of real-time detection result.
A kind of vision detection system, comprising: light source shielded box, imaging source, camera, line-structured light light source and computer are set
Standby, the imaging source, the camera and the line-structured light light source are installed in inside the light source shielded box；The camera
It is connect with the computer equipment；
The light source shielded box forms vision-based detection darkroom for extraneous light to be isolated；
The imaging source is used to provide photographic light sources for the camera；
The line-structured light light source is for providing linear beam；
The image information that the computer equipment is used to be shot according to the camera carries out quality testing to target object；Institute
Stating quality testing includes gray scale detection and/or defects detection.
A kind of vision detection system provided by the above embodiment includes light source shielded box, imaging source, camera, line-structured light
Light source and computer equipment, the imaging source, the camera and the line-structured light light source are installed in the light source isolation
Inside case；The camera is connect with the computer equipment；The light source shielded box forms vision inspection for extraneous light to be isolated
Survey darkroom；The imaging source is used to provide photographic light sources for the camera；The line-structured light light source is linear sharp for providing
Light beam；The image information that the computer equipment is used to be shot according to the camera carries out quality testing to target object；It is described
Quality testing includes gray scale detection and/or defects detection.Light source shielded box is isolated by extraneous light, and stable figure is provided for camera
As acquisition ambient environment, imaging source is LED light, takes pictures for camera and provides lightness stabilized light source, and line-structured light light source is phase
Machine testing body surface defect provides linear light sorurce.When carrying out gray scale detection to object, target object is placed on light source isolation
Below camera inside case, the illumination brightness of fixed imaging light source adjusts camera focusing and exposure parameter, is then clapped with camera
According to photo is transferred to computer by camera, and whether the photo detection testee gray value that computer is transmitted by camera meets
Standard；When carrying out surface defects detection to object, the illumination brightness of fixed imaging light source adjusts camera focusing and exposure ginseng
Number opens line-structured light light source, adjusts its light focal length, then taken pictures with camera, and photo is transferred to computer by camera, calculates
Whether machine is defective by the photo detection testee that camera transmits.In the present embodiment, light source shielded box eliminates ambient light
The interference of line, imaging source acquire photo for camera and provide stable illumination, and camera exposure is fixed, then camera imaging result is steady
Qualitative height, consistency are good, so that the testing result to testee is more acurrate.
In one embodiment, the imaging source is the adjustable light source of brightness.
In one embodiment, the camera is the adjustable camera of exposure parameter.
In above-described embodiment, imaging source is adjustable to be fixed, and user can adjust light luminance according to actual needs and consolidate
Determine illumination brightness, user can also adjust camera exposure parameter, make camera according to body surface reflectance and imaging source brightness
Imaging is more clear.
In one embodiment, the system also includes camera supports；The camera support is mounted on the light source isolation
Inside case, the camera is mounted on the camera support.
In one embodiment, the camera support is the adjustable bracket in position.
In one embodiment, the camera support includes pedestal, fixed link, the moveable adjusting rod in left and right, retainer plate,
The retainer plate is provided with vertical the first via hole and the second via hole of axis；
The fixed link is fixedly mounted on the base, and the retainer plate is set in described solid by first via hole
In fixed pole, the adjusting rod is arranged in second via hole and is fixed on the retainer plate, and the camera is mounted on the tune
One end of pole.
In the present embodiment, support height is adjustable, and left and right is adjustable, and position is flexible, by adjusting bracket height, is adjustable into
As field range, solve the problems, such as that shape size different objects can not complete imaging.
In one embodiment, the imaging source is installed on the roof or side wall of the light source shielded box；
In one embodiment, the imaging source includes two adjustable LED light sources of brightness, the back of the LED light source
Portion is provided with magnet；The LED light source is mounted on inside the light source shielded box by the magnet.
In the present embodiment, imaging source brightness is adjustable fixes, and user can adjust light luminance according to actual needs
And fixed-illumination brightness, imaging source are mounted on inside light source shielded box by magnet, installation is simple, and disassembly is simple.
In one embodiment, the light focus adjustable of the line-structured light light source.
In one embodiment, the line-structured light light source is uniform one word mode of laser group of red line.
In the present embodiment, the light focus adjustable of line-structured light light source, adjustment light focal length make light beam to the greatest extent may be used on surface
Can be thin and uniform, such imaging results accuracy and stability are higher.Moreover, by lead-in structured light light source, Ke Yibang
It helps computer to position target area, realizes the information extraction of target zone, improve defects detection accuracy rate.
Vision detection system provided by the utility model includes light source shielded box, imaging source, camera, line-structured light light
Source and computer equipment, the imaging source, the camera and the line-structured light light source are installed in the light source shielded box
It is internal；The camera is connect with the computer equipment；The light source shielded box forms vision-based detection for extraneous light to be isolated
Darkroom；The imaging source is used to provide photographic light sources for the camera；The line-structured light light source is for providing linear laser
Beam；The image information that the computer equipment is used to be shot according to the camera carries out quality testing to target object；The matter
Amount detection includes gray scale detection and/or defects detection.In the present embodiment, light source shielded box eliminates the interference of ambient,
Imaging source acquires photo for camera and provides stable illumination, and camera exposure is fixed, so that camera imaging result stability height,
Consistency is good, and then keeps the testing result of testee more acurrate.
Detailed description of the invention
Fig. 1 is a kind of vision detection system schematic diagram provided by the embodiments of the present application；
Fig. 2 is a kind of camera support structure diagram provided by the embodiments of the present application；
Fig. 3 is a kind of structure diagram of imaging source provided by the embodiments of the present application；
Fig. 4 is a kind of line-structured light light-source structure schematic diagram provided by the embodiments of the present application.
Description of symbols:
1: light source shielded box；
2: imaging source；
3: camera；
4: line-structured light light source；
5: computer equipment；
6: camera support；
7: target measured object；
8: adjusting knob；
61: pedestal；
62: fixed link；
63: adjusting rod；
64: retainer plate.
Specific embodiment
It is right with reference to the accompanying drawings and embodiments in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the application, not
For limiting the application.
Fig. 1 is a kind of vision detection system schematic diagram provided by the embodiments of the present application, vision-based detection provided in this embodiment
System can be applied to production line detection production sample.As shown in Figure 1, the feel detection system includes: light source shielded box 1, imaging
Light source 2, camera 3, line-structured light light source 4 and computer equipment 5, the imaging source 2, the camera 3 and the line-structured light
Light source 4 is installed in inside the light source shielded box 1；The camera 3 is connect with the computer equipment 5；The light source isolation
Case 1 forms vision-based detection darkroom for extraneous light to be isolated；The imaging source 2 is used to provide photographic light sources for the camera；
The line-structured light light source 4 is for providing linear beam；The computer equipment 5 is used for the figure shot according to the camera 3
As information carries out quality testing to target object；The quality testing includes gray scale detection and/or defects detection.
Wherein, light source shielded box 1 is used to exclude the interference of ambient light, and light source shielded box 1 can be wooden, or hides
Light cloth, is also possible to darkroom, and all materials that can play interception may be constructed light source shielded box, the embodiment of the present application
With no restrictions.Optionally, light source shielded box 1 can also move, and user can install according to testing requirement.Imaging source 2 is used
Adequate brightness is provided in acquiring photo for camera, point light source, such as shot-light, spotlight is can be, is also possible to floodlight source, such as
Ceiling lamp, pendent lamp, light pipe can also be linear light source, such as ballpoint lamp, LED light；If user is made using external light source such as ceiling lamp
When for imaging source 2, can on the upside of 1 shell of light source shielded box, the left and right sides carry out aperture to guarantee inside light source shielded box 1
Brightness；If imaging source 2 is LED light, it can be annular light source, stripe shape light source or linear light sources；The present embodiment is with no restrictions.
Line-structured light light source 4 so that the body surface defect of imaging is more obvious, and can help computer for providing linear beam
Target area is positioned, such as using the uniform one word mode of laser group of red line of wavelength 650nm, power 100mw, is got by laser
Working environment can reach 12 meters to one wordline indoors, and red line is thin and uniform, and accuracy and stability are very high.
When user will carry out gray scale detection to object, target object is placed under the camera 3 inside light source shielded box 1
Side, the illumination brightness of fixed imaging light source 2 adjust the focusing of camera 3 and exposure parameter, are then taken pictures with camera 3, camera 3 will shine
Piece is transferred to computer equipment 5, and whether computer equipment 5 detects testee gray value by the photo analysis that camera 3 transmits
Meet standard；Such as: it will be printed off at various pressures by pressure marking machine (being remembered by mechanical pressure in target surface marking)
Sample be placed in detection system and detect its gray value, same sample is repeatedly tested, test result such as table 1, is tested
As a result accuracy and consistency are higher, and gray value relative error is in +/- 5% or absolute error within +/- 5.
Table 1
Illustratively, for needing the scene based on gray scale result realization state modulator, the gray value that user will acquire
Average value and desired gray level value feed back to computer equipment, and computer calls intelligent algorithm that can calculate and realizes desired gray level effect
The parameter of fruit, if pressure marking machine, then its ideal parameters is relative power ratio, as shown in table 2.
Table 2
Illustratively, when user will carry out surface defects detection to object, the illumination brightness of fixed imaging light source 2 is adjusted
The focusing of camera 3 and exposure parameter are saved, line-structured light light source 4 is opened, adjusts its light focal length, then taken pictures with camera 3, camera 3
Photo is transferred to computer equipment 5, the photo analysis that computer equipment 5 is transmitted by camera 3 detects whether testee has
Defect, such as: plug progress different perspectives is repeatedly tested, result is table 2.Test result shows the equipment for plug table
Planar defect detects available accurate effect.
Table 3
| Serial number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Actual mass | Zero defect | Zero defect | Zero defect | Zero defect | It is defective | It is defective | It is defective | It is defective |
| Testing result | Zero defect | Zero defect | Zero defect | Zero defect | It is defective | It is defective | It is defective | It is defective |
Vision detection system in above-described embodiment includes light source shielded box 1, imaging source 2, camera 3, line-structured light light
Source 4 and computer equipment 5, the imaging source 2, the camera 3 and the line-structured light light source 4 be installed in the light source every
Inside case 1；The camera 3 is connect with the computer equipment 5；The light source shielded box 1 is formed for extraneous light to be isolated
Vision-based detection darkroom；The imaging source 2 is used to provide photographic light sources for the camera；The line-structured light light source 4 is for mentioning
For linear beam；The image information that the computer equipment 5 is used to be shot according to the camera 3 carries out quality to target object
Detection；The quality testing includes gray scale detection and/or defects detection.In the present embodiment, light source shielded box eliminates ambient light
The interference of line, imaging source acquire photo for camera and provide stable illumination, and camera exposure is fixed, then camera imaging result is steady
Qualitative height, consistency are good, so that the testing result to testee is more acurrate.Moreover, by lead-in structured light light source 4, it can
To help computer to position target area, to realize the information extraction of target zone, defects detection accuracy rate is improved.
In one embodiment, the imaging source 2 is the adjustable light source of brightness.Optionally, the camera 3 is exposure ginseng
The adjustable camera of number.
In the present embodiment, imaging source 2, which is used to acquire photo for camera, provides adequate brightness, completely cuts off the shadow of exterior light
It rings, user can according to demand be adjusted 2 brightness of imaging source, and control imaging source 2 can be carried out by regulating switch
Brightness, regulating switch can be knob or key, and with no restrictions, imaging source 2 is adjustable to be able to solve because of object the present embodiment
Surface is different and leads to luminance difference problems of too.Camera 3 can be film camera, digital camera or Polaroid camera, example
Such as, using adjustable industrial camera is exposed, white-black pattern, 1/2.7 inch of photosensitive size, 5.6 μ of horizontal/vertical Pixel Dimensions are supported
M*5.6 μm, horizontal/vertical resolution 659px*494px, communication interface GIGE cameralink interface exposes adjustable consolidate
It is fixed；User can adjust exposure parameter according to demand, so that imaging is more clear.
Fig. 2 is a kind of camera support structure diagram provided by the embodiments of the present application, optionally, in one embodiment, institute
Stating vision detection system further includes camera support 6；The camera support 6 is mounted on inside the light source shielded box 1, the camera
3 are mounted on the camera support 6.Further, the camera support 6 is the adjustable bracket in position.
In the above-described embodiments, camera support 6 is mounted on inside light source shielded box 1, and camera 3 is mounted on camera support 6,
It can be by the position of 6 flexible modulation camera 3 of camera support, for example, user can upper and lower according to actual needs, left and right adjusting phase
The position of machine 3.
Specifically, as shown in Fig. 2, the camera support 6 includes pedestal 61, fixed link 62, the moveable adjusting rod in left and right
63, retainer plate 64, the retainer plate are provided with vertical the first via hole and the second via hole of axis；The fixed link 62 is fixedly mounted
On the pedestal 61, the retainer plate 64 is set in the fixed link by first via hole, and the adjusting rod 63 is worn
It is fixed in second via hole on the retainer plate 64, the camera 3 is mounted on one end of the adjusting rod 63.
In the present embodiment, pedestal 61 is used to support camera support 6, can be rectangular, circle or other shapes.Fixed link
62 are mounted on pedestal 61, and the first via hole 641 and the second via hole 642 are provided on retainer plate 64, and adjusting rod 63 passes through retainer plate
64 are set in fixed link 62；Retainer plate 64, adjusting rod 63 and fixed link 62 cooperate, and may be implemented flexibly to adjust up and down
Camera position is saved, can quickly adjust also fine-tuning, trimming precision can achieve 0.08mm；By adjusting camera support 6, can adjust
Visual field range, can solve shape size different objects can not complete imaging the problem of.
In one embodiment, the imaging source 2 is installed on the roof or side wall of the light source shielded box 1.Such as Fig. 3
Shown, the imaging source 2 includes two adjustable LED light sources of brightness, and the back of the LED light source is provided with magnet；It is described
LED light source is mounted on inside the light source shielded box 1 by the magnet.
In the present embodiment, imaging source 2 can be mounted on light source shielded box 1 by modes such as screw, hook, buckles
On roof or side wall, for example, can 2 back of imaging source assemble magnet, user can according to demand by light source be fixed on roof or
Side wall, imaging source 2 include two adjustable LED light sources of brightness, each LED light source is made of several lamp beads, for increasing
Add 1 internal brightness of light source shielded box, completely cuts off the influence of extraneous light.Brightness regulation can be controlled by regulating switch, be adjusted
Switch can be installed on LED light source side, can also be individually present.According to user demand, by being carried out to 2 brightness of imaging source
It adjusts, can solve leads to luminance difference problems of too because of body surface difference.
Fig. 4 is a kind of line-structured light light-source structure schematic diagram provided by the embodiments of the present application, the light of the line-structured light light source 4
Line focus adjustable, optionally, the line-structured light light source 4 are uniform one word mode of laser group of red line.
In the present embodiment, line-structured light light source 4 provides linear beam, light focus adjustable section, line-structured light light
Source 4 can be uniform one word mode of laser group of red line, issue one-shaped laser, user adjusts laser in the detection process makes it
It is thin and uniform；Using 4 detection object surface defect of line-structured light light source, computer can be helped to position interest region, thus real
The information extraction of existing target zone, improves defects detection accuracy rate.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of vision detection system characterized by comprising light source shielded box, imaging source, camera, line-structured light light source
And computer equipment, the imaging source, the camera and the line-structured light light source are installed in the light source shielded box
Portion；The camera is connect with the computer equipment；
The light source shielded box forms vision-based detection darkroom for extraneous light to be isolated；
The imaging source is used to provide photographic light sources for the camera；
The line-structured light light source is for providing linear beam；
The image information that the computer equipment is used to be shot according to the camera carries out quality testing to target object；The matter
Amount detection includes gray scale detection and/or defects detection.
2. vision detection system according to claim 1, which is characterized in that the imaging source is the adjustable light of brightness
Source.
3. vision detection system according to claim 1 or 2, which is characterized in that the camera is that exposure parameter is adjustable
Camera.
4. vision detection system according to claim 1 or 2, which is characterized in that the system also includes camera supports；Institute
It states camera support to be mounted on inside the light source shielded box, the camera is mounted on the camera support.
5. vision detection system according to claim 4, which is characterized in that the camera support is the adjustable branch in position
Frame.
6. vision detection system according to claim 5, which is characterized in that the camera support include pedestal, fixed link,
The moveable adjusting rod in left and right, retainer plate, the retainer plate are provided with vertical the first via hole and the second via hole of axis；
The fixed link is fixedly mounted on the base, and the retainer plate is set in the fixed link by first via hole
On, the adjusting rod is arranged in second via hole and is fixed on the retainer plate, and the camera is mounted on the adjusting rod
One end.
7. vision detection system according to claim 1, which is characterized in that the imaging source be installed on the light source every
On roof or side wall from case.
8. vision detection system according to claim 1, which is characterized in that the imaging source includes that two brightness are adjustable
LED light source, the back of the LED light source is provided with magnet；The LED light source by the magnet be mounted on the light source every
Inside case.
9. vision detection system according to claim 1, which is characterized in that the light focal length of the line-structured light light source can
It adjusts.
10. vision detection system according to claim 1, which is characterized in that the line-structured light light source is uniform red line
One word mode of laser group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821691224.1U CN209014481U (en) | 2018-10-18 | 2018-10-18 | Vision detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821691224.1U CN209014481U (en) | 2018-10-18 | 2018-10-18 | Vision detection system |
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| Publication Number | Publication Date |
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| CN209014481U true CN209014481U (en) | 2019-06-21 |
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| CN201821691224.1U Active CN209014481U (en) | 2018-10-18 | 2018-10-18 | Vision detection system |
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2018
- 2018-10-18 CN CN201821691224.1U patent/CN209014481U/en active Active
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