CN106706271B - A kind of automatic detection detection and performance evaluation optimization device and method of optical system - Google Patents
A kind of automatic detection detection and performance evaluation optimization device and method of optical system Download PDFInfo
- Publication number
- CN106706271B CN106706271B CN201611233043.XA CN201611233043A CN106706271B CN 106706271 B CN106706271 B CN 106706271B CN 201611233043 A CN201611233043 A CN 201611233043A CN 106706271 B CN106706271 B CN 106706271B
- Authority
- CN
- China
- Prior art keywords
- image
- adjustment
- eyeglass
- condenser system
- normal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0242—Testing optical properties by measuring geometrical properties or aberrations
- G01M11/0257—Testing optical properties by measuring geometrical properties or aberrations by analyzing the image formed by the object to be tested
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Eyeglasses (AREA)
Abstract
The invention discloses a kind of automatic detection of optical system detections to optimize equipment with performance evaluation.By the continuous changing image of image display and image acquisition device is cooperated to acquire, the mode handled image obtains the error points of pixel number magnitude, and adjustment, performance evaluation, focal beam spot fitting, the evaluation of hot spot analysis of condenser system are carried out using the error, it finally obtains and meets expected optical system.Device and method of the invention improve efficiency, reduce cost and risk: since image processing and analyzing speed is fast, the adjusting parameter of entire condenser system can be obtained in several seconds, for instructing artificial or automation adjustment equipment to be adjusted, regulated efficiency is greatly improved, the cost and risk of adjustment are reduced；Realization is provided simultaneously meets actual Optical Properties and detection；It realizes reversed performance optimization, improve utilization efficiency.
Description
Technical field
The present invention relates to a kind of automatic detection of image detection analysis technical field more particularly to optical system detection and property
It can analysis optimization device and method.
Background technique
It generates electricity in solar energy heat utilization field, such as slot type, tower, Fresnel and dish-style, is directed to a variety of optics
The debugging and performance evaluation of eyeglass, a good optical frames field can not only promote generating efficiency, can more improve the stabilization of power generation
Property.
By taking dish-style as an example, the Stirling engine of 4 cylinders is generallyd use in power field front end, stirling generator is to heated
Part uniformity coefficient is more demanding, if uneven heating is even, it may appear that the case where cylinder drags relatively substantially drags down power generation effect
Rate.And the reduction bring side effect of efficiency is that aggregation heat can not be converted and be conducted away in time, causes heat to be assembled, causes office
Portion's overheat, directly affects engine life.
Not relatively good method carries out performance detection, analysis and the assessment of optical system in the world at present.
In dish-style optically focused field, more by the way of a kind of blind tune, i.e., it is adjusted against the sun, makes each focusing
Hot spot enter convergent hole；The major defect for not detecting blind tune commonly includes: to fully belong to estimate due to not knowing adjustment amount
Adjustment state, cause adjustment time long, low efficiency, adjustment effect and quality can not be assessed.Generally there are personnel in steel simultaneously
It is adjusted on the frame body of structure, there is biggish security risk.Adjustment effect only relies on naked-eye observation, and quality not can guarantee.Such as
Fruit causes hot-spot, is likely to result in heat dump and the serious consequences such as burns, there are security risks.
Individual businesses use some methods based on laser or light beam, can refer to patent " based on butterfly solar energy optical-thermal
The detection device and detection method of system mirror ", the adjustment of system may be can be used in the case that effect is good, cannot achieve
System optics performance evaluation.The method adjusted using laser or light beam, can theoretically save adjustment time, reach relatively good
Adjustment effect.Its main disadvantage: first, actual condenser area is big, and error is unevenly distributed, and is described with several points
It adjusts the angle the deviation for being likely to cause error, so as to cause adjustment quality decline；Second, this method is counted due to calculating
It is few, it can not fit and meet actual optical performance parameter, can not theoretically provide optical analysis.
In this case, more enterprises are connect using receiving end using the thermally conductive and better material of heat resistance, expansion
The areas of receipts is accelerated to import the modes such as the mobility of medium to solve the unstable project of condenser performance, due to can not be basic again
The solution of upper carry out problem, has replaced better material, and while directly contributing the raising of cost, also not can guarantee can be thorough
It solves；In addition enlarged-area and quickening mobility mode, reduce the temperature collection at heat absorption gas end, directly contribute the drop of efficiency
It is low, in the case where the current cost of new energy field is difficult reduction, increase its difficulty to advance.
Summary of the invention
The problem to be solved in the present invention exactly proposes a kind of practicable, optical property for common condenser system
Detection, adjustment and analysis, the adjusting parameter of condenser system can be not only provided using the solution of the present invention within the short several seconds, used
In indirect labor or the system call interception of automatic adjustment equipment.It simultaneously can also be by a points minute hundreds of thousands of in specific system
Analysis, it can be deduced that meet actual optical performance parameter.Furthermore after obtaining optical performance parameter, reversed tune can also be carried out
Whole optimization reaches best adjustment effect.
In order to achieve the above object, the present invention provides a kind of automatic detection of optical system detections optimizes with performance evaluation
Equipment places image acquisition device and image display in condenser system front end, and industrial personal computer and image acquisition device and image are shown
Device data connection.Image acquisition device face is tested condenser system, acquires the image of condenser system；From the angle of image acquisition device
It sees, the image reflected on the reflecting mirror of condenser system is in image display；Image acquisition device and image display are placed
In the position of condenser system two focus length, image acquisition device and image display screen are against condenser system；And it utilizes and is somebody's turn to do
Image carries out image processing and analysis.
Preferably, described image collector and image display can tune to other positions, or by lens, reflecting mirror
The adjustment for carrying out light channel structure achievees the purpose that the picture observed on reflecting mirror by image acquisition device.
Preferably, described image collector is industrial camera, camera or ordinary video collector；Described image, which is shown, to be set
Standby is flat panel TV, optical projection system, LED display or array lamp bead display screen.
Preferably, there are three adjustment bolts at each eyeglass back of the condenser system, for fixing len at rear portion
Support construction on, while when adjusting back bolt angle, fix one of those, come by adjusting two other bolts
Change its angle.
Preferably, described image shows equipment at 55 cun or more.
Invention additionally provides a kind of automatic detection of optical system using above-mentioned special equipment detections and performance point
Optimization method is analysed, by the continuous changing image of image display and image acquisition device is cooperated to acquire, image is handled
Mode obtains the error points of pixel number magnitude, and adjustment, the performance evaluation, focal beam spot of condenser system are carried out using the error
Fitting, the evaluation of hot spot analysis, finally obtain and meet expected optical system.
Method includes the following steps:
Step 100 Image Acquisition: industrial personal computer controls image display display output, control figure while exporting image
As collector carries out Image Acquisition.
Step 200 is analyzed and calculates eyeglass adjustment amount, including following sub-step: the normal of step 210 calculating condenser system:
The method of use finds out the equation of incident ray and reflected ray by image analysis, and the side of normal is found out using incident ray and reflected ray
Formula；Step 220 using image segmentation calculate each eyeglass error and mean deviation angle, main process it is as follows: corresponding each picture
The ideal normal of vegetarian refreshments is in such a way that the surface equation differential to condenser system is differentiated, available theory normal angle；
Subtracted each other using the data and ideal data of calculating, obtains the error distribution of condenser system；Step 230 calculates mirror by geometrical relationship
The adjustment amount of piece calculates the rotation amount of adjustment bolt (2): by the mean error angle for each eyeglass that step 220 obtains,
Using the angle as error transfer factor amount, the adjustment distance for two bolts to be adjusted is calculated using geometry rotation relationship, and
Adjustment distance is converted into rotating cycle by flight pitch, convenient for direct adjustment.
Preferably, detailed process is as follows for the step 210: the corresponding location of pixels with image can directly obtain and scheme
As the location of pixels of acquisition chip in collector, and since the image acquisition device parameter and placement location of detection system are fixed and
For it is known that being easy to acquire spatial position of the correspondence image pixel on acquisition chip using these conditions, which is incidence
The starting point of line；Any image acquisition device has an optical center simultaneously, and any light for being incident on collector all must be through
The center is crossed, and the position at the center is also known conditions as the parameter of collector, the incident ray of such respective pixel passes through
The two points can determine.Location of pixels of each point corresponding to flat panel TV on the image of first step acquisition is obtained, in conjunction with figure
Position and resolution parameter as display equipment, the corresponding spatial position of the available location of pixels, which is also
The final position of the pixel reflected ray；And the starting point of reflected ray needs to determine by the intersection point of incident ray and condenser system,
In this example respective pixel incident ray it has been determined that and condenser system be hyperbolic-parabolic, the face type equation is it is known that be reduced to sky
Between straight line and paraboloidal intersection point, acquire intersection point and finally determine reflected ray equation.Incident ray and reflected ray are determining, respective pixel
Normal determines, finds out respective pixel space normal by angular bisector method.It can be acquired by this method and picture pixels
The comparable normal about entire condenser system is distributed.
Preferably, further comprise the adjustment of step 300 eyeglass and confirmation: having obtained the rotation parameter of adjustment bolt, directly
It is rotated according to the numerical value；If the eyeglass average angle of detection does not need to adjust in this range；If average angle
It is super to go beyond the scope, then by obtained direction and circle number rotation adjustment bolt.
Preferably, further comprise step 400 performance evaluation: step 410 calculate condenser system normal be distributed and divide to
Eyeglass；Step 420 carries out light fitting and optically focused analysis: the Monte Carlo light of production simulated solar light, and by the light
Intersect with each pixel, calculates reflection light using the normal numerical value obtained before, while calculating reflection light and heat dump
Intersection point；Focal beam spot is fitted after calculating whole intersection points；Optically focused hot spot is irradiated on heat dump, and heat dump itself is according to knot
Thermally conductive situation caused by structure is different, material is different is also entirely different；The relevant parameter of heat dump is added herein, it can be true by material
Determine thermal coefficient, the distribution map of optically focused hot spot can be converted to heat using heat transfer formula and be distributed；System optimization is mainly examined
The case where considering hot spot in heat distribution and heat balance degree are sentenced by the offline specification of the upper limit specification equilibrium degree of setting hot spot
Determine whether system meets the requirements, when the distribution of the heat of calculating reaches the numerical value except specification, system prompts to need to optimize.
Preferably, the method for above-mentioned optimization is the heat distribution of the optimization each eyeglass in region needed for calculating separately out, with specification
Threshold value compare, if it exceeds the upper limit or be lower than lower limit, then judge need readjust or replace.
Preferably, further comprise that step 500 judges defective products, the method for each eyeglass has been obtained when calculating focal beam spot
Line angular distribution and mean value set eyeglass that mean value range such as exceeds 1 ° as defective products, replace to it.
The utility model has the advantages that (1) improves efficiency, cost and risk are reduced: since image processing and analyzing speed is fast, in several seconds i.e.
The adjusting parameter that entire condenser system can be obtained greatly improves tune for instructing artificial or automation adjustment equipment to be adjusted
Whole efficiency reduces the cost and risk of adjustment.
(2) it realizes and meets actual Optical Properties and detection: since Image Acquisition point is more, according to the big of optical system
It is small to can choose hundreds of thousands of industrial cameras to tens million of pixels, and realize the precise measurement of each point, it is equivalent to analysis extremely
Few hundreds of thousands focal point.Using these focal point combination Monte Carlo ray theories and geometric optics knowledge, may be implemented
It is bonded actual Optical Properties and evaluation entirely.
(3) realize reversed performance optimization, improve utilization efficiency: after analyzing optical property, situation that may be practical is simultaneously
The requirement for not meeting optimal spot, can be reversed by parser and is calculated, such as individual accidentally by new adjustment or replacement
The biggish light-collecting lens of difference, the optimization for carrying out performance improve.
Detailed description of the invention
Fig. 1 is the condenser system structure chart that 12 optical mirror slips of the embodiment of the present invention form.
Fig. 2 is that the automatic detection detection of the optical system of the embodiment of the present invention optimizes unit construction principle with performance evaluation
Figure.
Fig. 3 is that the software that the automatic detection detection of the optical system of the embodiment of the present invention optimizes equipment with performance evaluation is analyzed
And calculate eyeglass adjustment amount flow chart.
Fig. 4 is that the automatic detection detection of the optical system of the embodiment of the present invention optimizes the confirmation optically focused of equipment with performance evaluation
The optical performance parameter flow chart of system.
Attached drawing mark: 1, condenser system；2, bolt is used in adjustment (at condenser system back, for adjusting lens angle)；3,
Image acquisition device；4, image display；5, industrial personal computer.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
The present invention is described in further detail in conjunction with the accompanying drawings and embodiments.It is understood that specific implementation described herein
Example is used only for explaining the present invention rather than limiting the invention.It also should be noted that for ease of description, attached drawing
In only some but not all of the content related to the present invention is shown.
One, structure and principle
Fig. 1 and Fig. 2 is please referred to, the automatic detection detection of the optical system of the present embodiment optimizes the hard of equipment with performance evaluation
Part structure is: placing image acquisition device 3 and (this of image display 4 in 1 front end of condenser system of 12 optical mirror slips composition
Embodiment is flat panel TV), and be equipped with industrial personal computer 5 and connect with the two, simultaneously by the continuous changing image of flat panel TV in test
Cooperate image acquisition device 3 to acquire, the error points of pixel number magnitude, and benefit are obtained in such a way that software handles image
The evaluation such as adjustment, performance evaluation, focal beam spot fitting, hot spot analysis of condenser system 1 is carried out with the error, finally obtains and meets
Expected optical system.
Image acquisition device 3 is usually industrial camera, camera, ordinary video collector etc.；Image display can be used
Flat panel TV, optical projection system, LED display, array lamp bead display screen etc..
3 face of image acquisition device is tested condenser system, acquires the image of condenser system.Condenser system is usually optical frames
Piece, from the point of view of image acquisition device 3, just at the center of flat panel TV on the picture theory that is reflected on reflecting mirror.Assuming that poly-
The focal length of photosystem is f, in order to reach said effect, needs image acquisition device and flat panel TV being placed on 2 times of focal lengths and obtains position
It sets, image acquisition device and plate TV screen are against condenser system.Also adjustable to other positions, or by lens, anti-
The adjustment that mirror carries out light channel structure is penetrated, reaches the picture observed on reflecting mirror by image acquisition device 3, and carry out figure using the image
As processing and analysis mode.
Two, embodiment
It is illustrated using traditional disc type condensation system, flat panel TV as showing equipment: 12 optical mirror slips
Between it is mutually indepedent, each eyeglass back is there are three adjustment bolt 2, the support construction for fixing len at rear portion, together
When adjusting back bolt angle, fix one of those, its angle can be changed by adjusting two other bolts.It is flat
Plate TV and image acquisition device 3 are both placed in about twice focal position on 1 axis of condenser system, face condenser system 1.Plate electricity
Larger size may be selected according to the diameter and error of condenser system in size depending on 4, and such as 55 cun or more (from image when due to measurement
Collector observes the image of the TV of condenser system reflection, if television sizes are smaller, is easy when condenser system error is big
Existing condenser system is not reflected into the picture on TV, causes the case where being unable to measure), the visual field of image acquisition device 3 just may include
Whole optical mirror slips, the two are connected using industrial personal computer 5.
After fixing image acquisition device 3 and flat panel TV, adjustment and evaluation and test work are broadly divided into following several steps:
The first step, Image Acquisition:
The process is mainly to be exported by the display of industrial personal computer control flat panel TV, and image is controlled while exporting image and is adopted
Storage carries out Image Acquisition.
By taking the detection mode of the striped phase shift method used as an example, industrial personal computer control flat panel TV shows two sides of transverse and longitudinal respectively
To, 90 ° of phase phase difference of 8 width images, the condenser system on control image acquisition device acquisition opposite while showing each width, due to
Condenser system reflection is the image of flat panel TV, therefore can collect 8 width and reflect streaky condenser system image.It is wherein horizontal
To 4 width of stripe pattern, phase is respectively 0 °, 90 °, 180 °, 270 °, 4 width of image of longitudinal stripe, phase is respectively 0 °, 90 °,
180°、270°。
Second step, analysis simultaneously calculate eyeglass adjustment amount:
After collecting picture, network analysis is carried out, flow chart is as shown in Figure 3.
It needs that the network analysis of the step is described in detail in conjunction with attached drawing herein, if being related to formula, public affairs please be provide
Formula
Calculate the normal of condenser system first: the method for use finds out the side of incident ray and reflected ray by image analysis
Journey, by incident ray and reflected ray find out normal in the way of, main process is as follows:
The corresponding location of pixels with image, can directly obtain the location of pixels of the acquisition chip in image acquisition device, and
Since the image acquisition device parameter and placement location of detection system are fixed and are it is known that being easy to acquire pair using these conditions
Spatial position of the image pixel on acquisition chip is answered, which is the starting point of incident ray.Any image acquisition device has simultaneously
One optical center, any light for being incident on collector all has to pass through the center, and the position at the center is as acquisition
The parameter of device is also known conditions, and the incident ray of such respective pixel can be determined by the two points.
In the 8 spoke print images that the first step obtains, it is easy to obtain on image that each point corresponds to plate electricity using phase shift method
Depending on location of pixels, position and resolution parameter in conjunction with flat panel TV, the corresponding spatial position of the available location of pixels,
The spatial position is also the final position of the pixel reflected ray.And the starting point of reflected ray is needed through incident ray and condenser system
Intersection point determine, in this example the incident ray of respective pixel it has been determined that and condenser system be hyperbolic-parabolic, the face type equation
It is known that being reduced to space line and paraboloidal intersection point, acquires intersection point and finally determine reflected ray equation.
Incident ray and reflected ray determine that the normal of respective pixel determines, are easy to find out correspondence by angular bisector method
Pixel space normal.
It can be acquired by this method and be distributed with the comparable normal about entire condenser system of picture pixels.
Secondly using image segmentation calculate each eyeglass error and mean deviation angle, main process it is as follows:
After finding out the distribution of condenser system normal, error is distributed in order to obtain, needs to carry out the perfect error of condenser system
The calculating of data simultaneously does difference.What the ideal normal of corresponding each pixel was differentiated by the surface equation differential to condenser system
Mode, available theory normal angle.Subtracted each other using the data and ideal data of calculating, obtains the error point of condenser system
Cloth.
Since condenser system is made of 12 eyeglasses, and calculating before is complete bent as one by condenser system always
Face mirror calculates, and next starts to be divided on each eyeglass the data of the system.The each eyeglass of system has the space of oneself
Position coordinates range, by taking the eyeglass of surface as an example, the coverage area of the eyeglass is -15 °~+15 ° of condenser system overcentre
Range.The data as the eyeglass of this angular range will be met on the condenser system calculated before, calculates method on the eyeglass
The average angle of line, the error angle as the eyeglass.Other each eyeglasses are similarly calculated, the average angle of each eyeglass is obtained
Degree.
The adjustment amount that eyeglass is calculated finally by geometrical relationship, calculates the rotation amount of bolt:
Since eyeglass rigidly fixes connection using three bolts, when carrying out angle adjustment, generallys use and fix one, adjust
Other two whole mode realizes the adjustment of gamut misalignment angle.In the mean error angle for having obtained each eyeglass before,
Using the angle as error transfer factor amount, the adjustment distance for two bolts to be adjusted is calculated using geometry rotation relationship.And
Adjustment distance is converted into rotating cycle by flight pitch, convenient for direct adjustment.
Third step, eyeglass adjustment and confirmation:
Artificial mode can be used in the angle adjustment of eyeglass, due to having obtained the rotation parameter of adjustment bolt, directly presses
It is rotated according to the numerical value.Assuming that the eyeglass average angle of target is between -1 °~+1 °, if the eyeglass average angle of detection
In this range, that is, do not need to adjust.It goes beyond the scope if average angle is super, the direction calculated by software and circle number rotation
Adjustment bolt.
The mode of adjust automatically can also be used in the part, and need to only install in adjustment bolt can carry out the automatic of control rotation
Rotation adjuster, the rotating cycle control adjustment bolt provided according to software are rotated and are locked.
Need to carry out detection confirmation again after the completion of adjustment, until each eyeglass actual error angle all meets -1 °~+1 °
Adjustment specification.
4th step, performance evaluation:
After the completion of adjustment, need to confirm the optical performance parameter of condenser system, also by software realization, 4 institute of flow chart
Show.
The process first half is similar with eyeglass adjustment, and rear semiosis simulates light by software and carries out optical system fitting
Mode, realize evaluation and analysis to optical system, specifically include that
It uses first and adjusts identical method with eyeglass, 8 pictures of acquisition, calculating condenser system normal are distributed and divide
To 12 eyeglasses.Since average angle angle value being adjusted to specification.
Secondly light fitting and optically focused analysis are carried out: since condenser system is in normal use, the face sun and converging light
To the heat dump of system front end, this is sentenced for the plane that heat dump is condenser system front end line.Make simulated solar light
Monte Carlo light, and the light is intersected with each pixel, reflection light is calculated using the normal numerical value obtained before, together
When calculate reflection light and heat dump intersection point.Focal beam spot is fitted after calculating whole intersection points.
It is thermally conductive caused by heat dump itself is different according to structure, material is different since optically focused hot spot is irradiated on heat dump
Situation is also entirely different.The relevant parameter that heat dump is added herein can be true by material due to being plate heat dump in this example
Determine thermal coefficient, the distribution map of optically focused hot spot can be converted to heat using heat transfer formula and be distributed.
System optimization mainly considers the case where hot spot in heat distribution and heat balance degree.The upper of setting hot spot can be passed through
The offline specification of limit gauge lattice equilibrium degree comes whether decision-making system meets the requirements, for example can set the upper limit specification of 200W/ ㎡, with
And the lower limit specification of 50W/ ㎡, when the distribution of the heat of calculating reaches the numerical value except two specifications, system prompts to need excellent
Change.
The method of optimization: by taking certain region occurs more than the hot spot of 200W/ ㎡ as an example, 12 pieces of eyeglasses are calculated in the region
Heat distribution, and should be 200, it is assumed that numerical value is [13,17,11,16,29,15,12,35,20,13,12,10], can be set
There is hot spot in eyeglass single-item when more than 25, by numerical value see obvious 5th and the 8th it is undesirable, need to readjust
Or replacement.
Similar method can be taken when heat occur and being distributed low, detected and judged.
5th step, the normal angle that situation is analyzed according to above-mentioned software, has obtained when calculating focal beam spot each eyeglass
Distribution and mean value can set eyeglass that mean value range such as exceeds 1 ° as defective products, replace to it.
6th step after detecting hot spot distribution, calorimetric analysis qualification by above system, that is, completes the adjustment and inspection of system
It surveys.
Using which, since the mode of Image Acquisition combination striped phase shift method is utilized, it can be deduced that with image pixel
The identical detection datas of number, for using 2,000,000 pixel cameras, even if by visual field and detection is in irregular shape influences, only
There is 50% utilization rate, still can achieve 1,000,000 points, divides equally on each eyeglass and count more than 80,000.Utilize 80,000
Point fits the spotlight effect come can completely embody the actual effect of reflecting optics substantially.
The above are the detection and analysis to common disk system, this method be equally applicable photo-thermal field slot type,
On tower and Fresnel, for detecting single paraboloid, micro- curved surface etc., in actual application process, the form meeting of the equipment
It is varied according to specific circumstances.
It needs subregion to measure step by step since slot type length is longer in slot type field, such as measures 10 meters of long slot types,
Equipment detection is limited by flat panel TV length, can only detect 1.5 meters or so every time, needs a point 7 times or 8 times measurements.
In micro- curved surface or the detection field of plane mirror, which can usually detect 1 half-size scale of flat panel TV length,
Therefore it is also required to subregion detection or is carried out using the bigger projection device of area.
Key problem in technology point of the invention is to utilize by placing image acquisition device and display equipment in condenser system front end
The display equipment image reflected in image acquisition device collection mirror analyzes each point normal and error of respective pixel, thus
System focusing and system optimization are instructed, and provides the important indicators such as comprehensive condenser system spotlight effect and heat distribution.
The present invention is that condenser system proposes a kind of completely new adjustment and evaluation and test mode, can be efficient by the equipment
Condenser system is adjusted and is optimized, and provides comprehensively and meets actual optical analysis report, and proof theory designs, and improves
Systematic difference efficiency.
The present invention can apply on the condenser system using reflecting mirror, can equally be well applied to any inspection for carrying reflecting mirror
Survey field can detect and verify in the same way actual spotlight effect such as the condenser system of light.For another example automobile
Rearview mirror effect detection, can also be detected and be analyzed using which.This equally should be comprising in the present invention.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that: its is right
Technical solution documented by foregoing embodiments is modified, or is equally replaced to some or all of the technical features
It changes, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (5)
1. automatic detection and the performance evaluation optimization method of a kind of optical system, which is characterized in that pass through image display (4)
Continuous changing image simultaneously cooperates image acquisition device (3) to acquire, and the mode handled image obtains the error of pixel number magnitude
It counts, and carries out adjustment, performance evaluation, focal beam spot fitting, the evaluation of hot spot analysis of condenser system (1) using the error,
It finally obtains and meets expected optical system；The following steps are included:
Step 100 Image Acquisition: industrial personal computer (5) controls image display (4) display output, controls while exporting image
Image acquisition device (3) carries out Image Acquisition；
Step 200 is analyzed and calculates eyeglass adjustment amount, including following sub-step:
The normal of step 210 calculating condenser system: the method for use finds out the equation of incident ray and reflected ray by image analysis,
By incident ray and reflected ray find out normal in the way of；
Step 220 using image segmentation calculate each eyeglass error and mean deviation angle, process it is as follows: corresponding each pixel
Ideal normal in such a way that the surface equation differential to condenser system is differentiated, it is available theory normal angle；It uses
The data of calculating are subtracted each other with ideal data, obtain the error distribution of condenser system；
Step 230 calculates the adjustment amount of eyeglass by geometrical relationship, calculates the rotation amount of adjustment bolt (2): by step 220
The mean error angle of each eyeglass obtained is calculated using the angle as error transfer factor amount using geometry rotation relationship
The adjustment distance for two bolts to be adjusted, and adjustment distance is converted into rotating cycle by flight pitch, convenient for direct
Adjustment.
2. automatic detection and the performance evaluation optimization method of a kind of optical system according to claim 1, which is characterized in that
Detailed process is as follows for the step 210: the corresponding location of pixels with image can directly obtain and acquire core in image acquisition device
The location of pixels of piece, and since the image acquisition device parameter and placement location of detection system are fixed and are it is known that several using this
A condition is easy to acquire spatial position of the correspondence image pixel on acquisition chip, which is the starting point of incident ray；With former
What image acquisition device has an optical center, and any light for being incident on collector all has to pass through the center, and in this
The position of the heart is also known conditions as the parameter of collector, and the incident ray of such respective pixel can be true by the two points
It is fixed；
Location of pixels of each point corresponding to flat panel TV on the image of first step acquisition is obtained, in conjunction with the position of image display
It sets and resolution parameter, the corresponding spatial position of the available location of pixels, which is also the pixel reflected ray
Final position；And the starting point of reflected ray needs to determine by the intersection point of incident ray and condenser system, in the incidence of respective pixel
Line it has been determined that and condenser system is hyperbolic-parabolic, the face type equation of hyperbolic-parabolic is it is known that being reduced to space line and throwing
The intersection point of object plane acquires intersection point and finally determines reflected ray equation；
Incident ray and reflected ray determine that the normal of respective pixel determines, find out respective pixel space by angular bisector method
Normal；
It can be acquired by this method and be distributed with the comparable normal about entire condenser system of picture pixels.
3. automatic detection and the performance evaluation optimization method of a kind of optical system according to claim 1 or 2, feature exist
In further comprising step 400 performance evaluation:
Step 410 calculates condenser system normal and is distributed and divides to eyeglass；
Step 420 carry out light fitting and optically focused analysis: production simulated solar light Monte Carlo light, and by the light with
The intersection of each pixel calculates reflection light using the normal numerical value obtained before, while calculating reflection light and heat dump
Intersection point；Focal beam spot is fitted after calculating whole intersection points；
Optically focused hot spot is irradiated on heat dump, and thermally conductive situation caused by heat dump itself is different according to structure, material is different is also complete
It is complete different；The relevant parameter of heat dump is added herein, thermal coefficient can determine by material, can will be gathered using heat transfer formula
The distribution map of light hot spot is converted into heat distribution；
Whether the offline specification by the way that the upper limit specification equilibrium degree of hot spot is arranged meets the requirements come decision-making system, when the heat of calculating
When distribution reaches the numerical value except specification, system prompts to need to optimize.
4. automatic detection and the performance evaluation optimization method of a kind of optical system according to claim 3, which is characterized in that
The method of optimization is the heat distribution of the optimization each eyeglass in region needed for calculating separately out, is compared with specification threshold value, if it exceeds on
Limit is lower than lower limit, then judges to need to readjust or replace.
5. automatic detection and the performance evaluation optimization method of a kind of optical system according to claim 1 or 2, feature exist
In, further comprise that step 500 judges defective products, obtained when calculating focal beam spot each eyeglass normal angle distribution with
Mean value sets mean value range beyond 1 ° of eyeglass as defective products, replaces to it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611233043.XA CN106706271B (en) | 2016-12-28 | 2016-12-28 | A kind of automatic detection detection and performance evaluation optimization device and method of optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611233043.XA CN106706271B (en) | 2016-12-28 | 2016-12-28 | A kind of automatic detection detection and performance evaluation optimization device and method of optical system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106706271A CN106706271A (en) | 2017-05-24 |
| CN106706271B true CN106706271B (en) | 2018-12-11 |
Family
ID=58903569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611233043.XA Active CN106706271B (en) | 2016-12-28 | 2016-12-28 | A kind of automatic detection detection and performance evaluation optimization device and method of optical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106706271B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300261B (en) * | 2017-07-18 | 2019-04-23 | 大连鉴影光学科技有限公司 | Tower mirror field heliostat focuses adjustment and performance optimization method |
| CN109226756A (en) * | 2018-10-18 | 2019-01-18 | 东南大学 | A kind of device for observing transparent flow field near plasma increasing material manufacturing process molten bath |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101351715A (en) * | 2005-12-30 | 2009-01-21 | 太阳能技术股份公司 | Test apparatus and test method for a pv concentrator module |
| US7667833B1 (en) * | 2006-06-28 | 2010-02-23 | Sandia Corporation | Alignment method for parabolic trough solar concentrators |
| CN102103034A (en) * | 2009-12-21 | 2011-06-22 | 富士迈半导体精密工业（上海）有限公司 | Optical property measuring system and method |
| CN104062743A (en) * | 2014-07-07 | 2014-09-24 | 大连宏海新能源发展有限公司 | Automatic focusing system used for regulating solar condensing lens and focusing method thereof |
| CN205691848U (en) * | 2016-04-24 | 2016-11-16 | 湖南戴斯光电有限公司 | Measure the attenuating device of focusing high power laser beam spot intensity distribution |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10125785A1 (en) * | 2001-05-26 | 2002-11-28 | Zeiss Carl | Absolute calibration of interferometer by measuring optical element in four positions and two angular positions, inter-focally and extra-focally |
-
2016
- 2016-12-28 CN CN201611233043.XA patent/CN106706271B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101351715A (en) * | 2005-12-30 | 2009-01-21 | 太阳能技术股份公司 | Test apparatus and test method for a pv concentrator module |
| US7667833B1 (en) * | 2006-06-28 | 2010-02-23 | Sandia Corporation | Alignment method for parabolic trough solar concentrators |
| CN102103034A (en) * | 2009-12-21 | 2011-06-22 | 富士迈半导体精密工业（上海）有限公司 | Optical property measuring system and method |
| CN104062743A (en) * | 2014-07-07 | 2014-09-24 | 大连宏海新能源发展有限公司 | Automatic focusing system used for regulating solar condensing lens and focusing method thereof |
| CN205691848U (en) * | 2016-04-24 | 2016-11-16 | 湖南戴斯光电有限公司 | Measure the attenuating device of focusing high power laser beam spot intensity distribution |
Non-Patent Citations (1)
| Title |
|---|
| 菲涅尔透镜聚光性能研究;陈志明;《中国优秀硕士学位论文全文数据库 基础科学辑》;20140315(第03期);第26-31页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106706271A (en) | 2017-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108958229B (en) | Method and device for rapidly and qualitatively detecting tracking accuracy of heliostat | |
| Tao et al. | A new trough solar concentrator and its performance analysis | |
| Xiao et al. | A model-based approach for optical performance assessment and optimization of a solar dish | |
| Ren et al. | A review of available methods for the alignment of mirror facets of solar concentrator in solar thermal power system | |
| CN105066902B (en) | Solar concentrator reflecting mirror surface shape detection means and method based on optical imagery | |
| Chemisana et al. | Optical performance of solar reflective concentrators: A simple method for optical assessment | |
| WO2016090776A1 (en) | Solar condenser mirror surface measurement and adjustment method and device thereof | |
| CN106706271B (en) | A kind of automatic detection detection and performance evaluation optimization device and method of optical system | |
| CN102435417B (en) | On-line dimension image testing device for focus degree of curved surface of optothermal-collecting electricity-generating reflecting mirror | |
| WO2013083053A1 (en) | Calibration method and calibration system for heliostat of solar power station | |
| CN105973505A (en) | Method for determining heat-flow density in opening of solar cavity type heat absorber | |
| CN104062743A (en) | Automatic focusing system used for regulating solar condensing lens and focusing method thereof | |
| Li et al. | A modified indirect flux mapping system for high-flux solar simulators | |
| CN105987671A (en) | Portable solar concentrator surface type detection device and method | |
| CN106950036B (en) | A kind of dish-style Stirling Salar light-gathering quality determining method | |
| CN108693193A (en) | Glass optical detection device and Glass optical detecting system | |
| CN204881548U (en) | Solar concentrator speculum shape of face detection device based on optical imaging | |
| CN110118642B (en) | Heliostat precision detection method and system based on cylindrical heat absorption tower target | |
| CN205450422U (en) | Solar energy condensing lens focusing system | |
| CN106918313B (en) | A kind of dish-style Stirling Salar light-gatherings minute surface quality determining method | |
| CN207147757U (en) | Fresnel mirror detection means | |
| Edgell et al. | Three-dimensional characterization of cryogenic target ice layers using multiple shadowgraph views | |
| Guillot et al. | ARGOS: Solar furnaces flat heliostats tracking error estimation with a direct camera-based vision system | |
| CN107356413A (en) | Fresnel mirror detection means | |
| CN205538713U (en) | Light and heat weak absorption testing arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |