CN206113857U - System for measuring plane LED fluorescent coating volume - Google Patents
System for measuring plane LED fluorescent coating volume Download PDFInfo
- Publication number
- CN206113857U CN206113857U CN201621059821.3U CN201621059821U CN206113857U CN 206113857 U CN206113857 U CN 206113857U CN 201621059821 U CN201621059821 U CN 201621059821U CN 206113857 U CN206113857 U CN 206113857U
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- China
- Prior art keywords
- multiposition
- line laser
- camera
- servomotor
- fixing device
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Abstract
The utility model discloses a system for measuring plane LED fluorescent coating volume, including host computer, multiposition line laser emission control module, control module and take the photograph camera vision control processing module moves, multiposition line laser emission control module includes multiposition line laser emission controller and multiposition line laser emission ware, movement control module includes electric machine control box, a servo motor, the 2nd servo motor, the 3rd servo motor, multiposition line laser emitter rotary fixing device, camera rotary fixing device, the single trajectories of level and electronic accurate objective table, it includes taking the photograph camera and taking the photograph the camera vision control treater of interconnect to take the photograph camera vision control processing module, the utility model discloses a check out test set is simple, and maneuverability is strong, is convenient for drop into the actual production environment.
Description
Technical field
This utility model is related to vision-based detection and image processing field, and in particular to a kind of measurement plane LED fluorescent powder is applied
The system of layer volume.
Background technology
White light LEDs excite acquisition white light usually through in chip surface coating fluorescent material.The volume of fluorescent material coating is to white light
The illumination effect of LED has very big impact.The full-automatic fluorescent material coating equipment production technology of foreign countries' monopolization causes purchasing price
It is high, and it is domestic mostly poor using dispensing and typography acquisition product quality, so the quality of production detection to LED is being given birth to
Produce and have in research greater significance.Wherein, fluorescent coating volume detection is to ensure the production of high quality white light LED, reduce substandard products
One of key link.
At present, the certain methods of fluorescent material coating volume detection mainly differentiate coating by eye-observation coating thickness
Amount, and then determine product whether production requirement.This detection method efficiency is low, precision inadequate and expends a large amount of manpower and materials moneys
Source, in the production for pursuing high accuracy fast speed, it is impossible to meet industrial requirement.
Utility model content
In order to overcome the shortcoming of prior art presence with a kind of not enough, measurement plane LED fluorescent powder of this utility model offer
The system of coating volume.
This utility model is adopted the following technical scheme that：
A kind of system of measurement plane LED fluorescent powder coating volume, including host computer, multiposition line laser emission control mould
Block, motion-control module and camera vision control process module；
The multiposition line laser emission control module includes line laser mission controller and multiposition line laser transmitter；
The motion-control module includes motor control box, the first servomotor, the second servomotor, the 3rd servo electricity
Machine, multiposition line laser transmitter rotary fixing device, video camera rotary fixing device, level list tracks and electric precision
Object stage；
The camera vision control process module includes the video camera being connected with each other and camera vision control process device；
The motor control box is connected respectively with first, second and third servomotor, first servomotor and water
Flat list tracks connection, the electric precision object stage is with motion, the LED chip to be detected in level list tracks
It is placed on electric precision object stage；3rd servomotor is connected with multiposition line laser transmitter rotary fixing device, institute
State multiposition line laser transmitter and multiposition line laser mission controller is fixed on the rotation of multiposition line laser transmitter and fixes
On device, the multiposition line laser mission controller is connected with multiposition line laser transmitter；
Second servomotor is connected with video camera rotary fixing device, and it is solid that the video camera is fixed on video camera rotation
Determine on device；The host computer respectively with multiposition line laser mission controller, motor control box and camera vision control at
Reason device connection；
During original state, the transmitting laser of multiposition line laser transmitter is parallel with the photographic head of video camera.
Also include annular power, the annular light source is fixed on video camera, and positioned at the underface of camera lens.
The beneficial effects of the utility model：
(1) this utility model using multiposition line laser structured light method to coat fluorescent coating volume detect, detect
Speed；
(2) testing equipment of the present utility model is simple, workable, is easy to put into actual production environment；
(3) this method accuracy of detection is higher, it is ensured that the production of high quality white light LED；
(4) this method adopts multiposition line laser structured light method, and coating thickness and coating volume computing formula are simpler.
Description of the drawings
Fig. 1 is the structural representation of this utility model measuring system；
Fig. 2 is overhaul flow chart of the present utility model；
Fig. 3 is the connection figure of this utility model measuring system；
Fig. 4 is the change in location schematic diagram of video camera in this utility model.
Specific embodiment
With reference to embodiment and accompanying drawing, this utility model is described in further detail, but reality of the present utility model
Apply mode not limited to this.
Embodiment
As shown in Figure 1, Figure 2 and shown in Fig. 4, a kind of system of measurement plane LED fluorescent powder coating volume, including it is host computer, many
Position line Laser emission control module, motion-control module and camera vision control process module；
The multiposition line laser emission control module includes multiposition line laser mission controller and multiposition line laser
Emitter 4；
The motion-control module includes motor control box, the first servomotor, the second servomotor, the 3rd servo electricity
Machine, multiposition line laser transmitter rotary fixing device, video camera rotary fixing device, level list tracks 1 and electronic essence
Close object stage 3；
The camera vision control process module includes the video camera 5 being connected with each other and camera vision control process device
And annular light source, the annular light source 6 is fixed on video camera 5, and positioned at the underface of camera lens；
The motor control box is connected respectively with first, second and third servomotor, first servomotor 7 and water
Flat list tracks connection, the electric precision object stage is moved with level list tracks 1, the LED chip to be detected 2
It is placed on electric precision object stage, mate-assist realizes multiposition line laser purpose；
3rd servomotor is connected with multiposition line laser transmitter rotary fixing device, the multiposition line laser
Emitter and multiposition line laser mission controller are fixed on multiposition line laser transmitter rotary fixing device, the multidigit
Put line laser mission controller to be connected with multiposition line laser transmitter, realize obtaining the purpose of multiposition line laser.
Multiposition line laser transmitter is that one kind can make line laser be incident to LED fluorescent powder by host computer setup parameter
Coating optional position, and the device of Laser emission number of times, single emission line laser duration and time interval can be adjusted.
Second servomotor is connected with video camera rotary fixing device, and it is solid that the video camera is fixed on video camera rotation
Determine on device, so as to adjusting camera position, carrying out Cai Tu and image procossing；
The host computer respectively with multiposition line laser mission controller, motor control box and camera vision control process
Device connects；
During original state, the transmitting laser of multiposition line laser transmitter is parallel with the photographic head of video camera.
Host computer issues commands to motor control box, the rotation of the 3rd servomotor drive control multiposition line laser transmitter
Fixing device, adjusts line laser launch angle, while controlling video camera rotary fixing device adjusting position so that transmitting laser
Direction is parallel with photographic head direction.Electric precision object stage has level list tracks, and Serve Motor Control electric precision is carried
Thing platform is moved from left to right, is had a break between three positions in coating left side edge, middle part, right side edge.Multiposition line swashs
Optical transmitting set, multiposition line laser mission controller and electric precision object stage coordinate, the time interval of adjustment transmitting line laser,
Time span and emitting times so that transmitting light can be incident to above three position.
Motor control box needs control first servomotor related to electric precision stage movement and multiposition line to swash
Optical transmitting set rotary fixing device moves second related to the motion of video camera rotary fixing device of the 3rd related servomotor
Servomotor, plays adjustment object stage movement, camera position adjustment, the rotation of multiposition line laser transmitter in different time sections
Fixing device is deflected, and reaches the effect of monitoring effect.
Fig. 3 is that camera position adjusts explanatory diagram, when video camera is in initial position, adjusts photographic head and swashs with multiposition line
The laser direction that optical transmitting set is launched is parallel, and after the completion for the treatment of that electric precision object stage is once moved from left to right, photographic head will
It is adjusted to directly over fluorescent coating, time of exposure and focal length, shooting is controlled by the camera vision control process device in Fig. 1
Correlation is simultaneously adopted figure signal and returns to the camera vision control process device in Fig. 1 and carry out image procossing by machine.
The operation of this planar LED fluorescent coating volume detection device and detection process, comprise the following steps：
1st, the LED chip of uncoated fluorescent material is placed at electric precision object stage test point, logs in master system,
It is input into each standard control parameter information.Multiposition line laser transmitter is fixed and opened, line laser transmitter is made with fixed angle
Incident LED modules surface, by camera motion controller control video camera rotary fixing device cause camera lens with it is many
Position line laser transmitter incident illumination direction is parallel, P position in such as Fig. 1.
2nd, by the coordinated between part of appliance, the movement of the first Serve Motor Control electric precision object stage so that
Line of incidence laser light incident obtains the laser picture of uncoated fluorescent material to chip centre position, picture is stored, the post processing treated
Obtain initial parameter.
3rd, multiposition line laser transmitter and video camera are closed, takes the LED chip of uncoated fluorescent material away.
4th, the LED chip for completing fluorescent material coating is placed at electric precision object stage test point, opens multiposition line
Generating laser and video camera, line laser launch angle is constant.
5th, stage movement control module control electric precision object stage movement, by multiposition line laser mission controller
Setting Laser emission duration, interval and number of times, coordinate so that line of incidence laser light incident is to coating with the movement of electric precision object stage
Left side edge, middle part, three positions of right side edge, Z, R, T location as shown in fig. 1, multiple obtained after fluorescent material coating swash
Light picture, stores picture, treats to process acquisition intermediate result after a while.
6th, in order to ensure denoising effect and reduce image blurring degree, medium filtering, ambient brightness during shooting can be adopted
Relatively low, laser is larger with image background regions luminance difference, binaryzation can be carried out to the picture after denoising and is calculated using canny
Son obtains Laser edge.Obtain using Hough transformation, by the most bright gray value of row, sit more than threshold point conic fitting and photocentre
Mark fitting a straight line etc. is processed, and obtains step 2,5 a plurality of line laser centrage.The line laser center line computation of calculation procedure 2 is obtained
Chip thickness is obtained, using the chip thickness as initial parameter, and the initial parameter is stored.The a plurality of line laser that step 5 is obtained
Centrage calculates respectively gross thickness, and each position gross thickness is averaging.Average total thickness is compared with initial parameter and is subtracted each other, obtained
Obtain average coating thickness.
7th, the 3rd Serve Motor Control video camera rotary fixing device causes camera lens to be adjusted to coating top, with electricity
Dynamic precision object stage parallel position, X position in such as Fig. 4 controls light-source brightness and shooting by camera vision control process device
Machine shoots and adopts figure, and correlation is adopted figure signal and returns to camera vision control process device in Fig. 1 by video camera.
8th, camera vision control process device carries out image procossing to the picture of step 7, and using gaussian filtering denoising is carried out
Process, by the way that picture is converted to into YCrCb spaces, judge whether pixel colourity belongs in setting chromaticity range, coated
Region and coated area.And using the average coating thickness and the coated area of step 6 acquisition, obtain coating volume.Measurement institute
Volume must be coated to be contrasted with standard application volume of pre-recording.
9th, host computer display comparison result and coating precision, are reported to the police non-compliant coated product and are stored letter
Breath.Finally will collection image, each result of processing procedure, precision result, whether conformance with standard etc. upload to data base, and will
Feedback of the information gives LED fluorescent powder coating machines, to adjust the coated weight of remaining chip to be coated.
10th, survey and finish, close multiposition line laser transmitter and video camera, exit host computer.
Above-described embodiment is this utility model preferably embodiment, but embodiment of the present utility model is not by described
The restriction of embodiment, it is other it is any without departing from the change made under spirit of the present utility model and principle, modify, replace
Generation, combination, simplification, should be equivalent substitute mode, be included within protection domain of the present utility model.
Claims (2)
1. a kind of system of measurement plane LED fluorescent powder coating volume, it is characterised in that including host computer, multiposition line laser
Emission control module, motion-control module and camera vision control process module；
The multiposition line laser emission control module includes that multiposition line laser mission controller and multiposition line laser are launched
Device；
The motion-control module includes motor control box, the first servomotor, the second servomotor, the 3rd servomotor, many
Position line laser transmitter rotary fixing device, video camera rotary fixing device, level list tracks and electric precision loading
Platform；
The camera vision control process module includes the video camera being connected with each other and camera vision control process device；
The motor control box is connected respectively with first, second and third servomotor, first servomotor and level list
Tracks connect, and the electric precision object stage is moved in level list tracks, and LED chip to be detected is placed on electronic essence
On close object stage；
3rd servomotor is connected with multiposition line laser transmitter rotary fixing device, the multiposition line laser transmitting
Device and multiposition line laser mission controller are fixed on multiposition line laser transmitter rotary fixing device, the multiposition line
Laser emission controller is connected with multiposition line laser transmitter；
Second servomotor is connected with video camera rotary fixing device, and the video camera is fixed on the fixed dress of video camera rotation
Put；The host computer respectively with multiposition line laser mission controller, motor control box and camera vision control process device
Connection；
During original state, the transmitting laser of multiposition line laser transmitter is parallel with the photographic head of video camera.
2. system according to claim 1, it is characterised in that also including annular power, the annular light source is fixed on to be taken the photograph
On camera, and positioned at the underface of camera lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621059821.3U CN206113857U (en) | 2016-09-14 | 2016-09-14 | System for measuring plane LED fluorescent coating volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621059821.3U CN206113857U (en) | 2016-09-14 | 2016-09-14 | System for measuring plane LED fluorescent coating volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206113857U true CN206113857U (en) | 2017-04-19 |
Family
ID=58520022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621059821.3U Expired - Fee Related CN206113857U (en) | 2016-09-14 | 2016-09-14 | System for measuring plane LED fluorescent coating volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206113857U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289060A (en) * | 2016-09-14 | 2017-01-04 | 华南理工大学 | A kind of system and method measuring planar LED fluorescent coating volume |
| CN108924549A (en) * | 2018-08-31 | 2018-11-30 | 贵州维讯光电科技有限公司 | Motor of camera device for testing |
| CN109827512A (en) * | 2019-03-07 | 2019-05-31 | 中冶长天国际工程有限责任公司 | A kind of method, controller and the system of thickness of feed layer on-line checking |
-
2016
- 2016-09-14 CN CN201621059821.3U patent/CN206113857U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289060A (en) * | 2016-09-14 | 2017-01-04 | 华南理工大学 | A kind of system and method measuring planar LED fluorescent coating volume |
| CN108924549A (en) * | 2018-08-31 | 2018-11-30 | 贵州维讯光电科技有限公司 | Motor of camera device for testing |
| CN108924549B (en) * | 2018-08-31 | 2023-10-17 | 贵州维讯光电科技有限公司 | Camera motor test fixture |
| CN109827512A (en) * | 2019-03-07 | 2019-05-31 | 中冶长天国际工程有限责任公司 | A kind of method, controller and the system of thickness of feed layer on-line checking |
| CN109827512B (en) * | 2019-03-07 | 2021-03-05 | 中冶长天国际工程有限责任公司 | Method, controller and system for online detection of thickness of material layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20190914 |