CN105676411B - A kind of focusing data processing method of Salar light-gathering eyeglass - Google Patents
A kind of focusing data processing method of Salar light-gathering eyeglass Download PDFInfo
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- CN105676411B CN105676411B CN201610156750.7A CN201610156750A CN105676411B CN 105676411 B CN105676411 B CN 105676411B CN 201610156750 A CN201610156750 A CN 201610156750A CN 105676411 B CN105676411 B CN 105676411B
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- concentrator
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- eyeglass
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
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Abstract
This application discloses a kind of focusing data processing methods of Salar light-gathering eyeglass, one focusing system is provided, the system includes concentrator, light guide plate and camera, level ground is fixed on the vertex on the concentrator convex surface, the concave surface array of the concentrator is equipped with multiple mirror-reflection pieces, the light guide plate and camera are arranged at the surface of the concentrator, and on the center line of the concentrator, the light guide plate by the small headlamp of unlatching/closing by can individually be formed, and disclosed herein as well is the methods that focusing data processing is carried out using above system.The error angle of eyeglass can be more accurately calculated by this method；Reduce the time for obtaining the measurement data needed for eyeglass focusing；It focuses suitable for batch.The time is saved, improves focusing efficiency.
Description
Technical field
The application belongs to photo-thermal power generation technical field, more particularly to a kind of focusing data processing of Salar light-gathering eyeglass
Method.
Background technology
The focus adjustment method of Salar light-gathering eyeglass is generally included to day focusing and image-forming principle focusing two ways.
It focuses to day, is shining upon lower direct focusing, the simplest focusing mode of most original.By the every of dish-style concentrator
The hot spot of block reflector is adjusted to the relative position of heat collector, the position of the hot spot that each block of plate is formed and Stirling receiving port
It corresponds, in the adjustable extent of reflecting plate, is that hot spot is evenly distributed as far as possible, avoids the generation of hot spot.
There is very big difficulty in practical applications to day focusing.First in entire focussing process, tracking system needs one
The synchronism of straight operational support disc and the sun.Secondly, for the disc of the more backboards of large area, one piece of backboard is often debugged,
It is required for covering other backboards, convenient for seeing the distribution situation of hot spot.3rd, during focusing, operating personnel are
Working at height, focal beam spot scans simultaneity factor in operation, has very big danger.4th, also it is subject to the tight of weather
Ghost image is rung, and can not be focused in rainy days into line trace, and installation period is made largely to have uncertainty.Normal conditions
Under, the debugging of model machine is only applicable to day focusing.
Image-forming principle is focused (focusing of color target), and each panel of dish-style concentrator is adjusted.In disk system focus
A target is placed at place, and target has the slab construction of some strength, size and Stirling engine heat dump sizableness.Mark
Target is printed on multicolour pattern on one side towards dish-style concentrator, and number and the Reflector Panel of distribution form and concentrator of pattern are kept
Unanimously, the color of pattern can be the color lump of colour spacing or other are convenient for observing and the shape of resolution.
Image-forming principle focusing can only use in the environment that sunlight is not very strong, and installation needs space, be not suitable for batch
Focusing.
The content of the invention
It is an object of the invention to provide a kind of focusing data processing method of Salar light-gathering eyeglass, to overcome existing skill
Deficiency in art.
To achieve the above object, the present invention provides following technical solution：
The embodiment of the present application discloses a kind of focusing data processing method of Salar light-gathering eyeglass,
A focusing system is provided, which includes concentrator, light guide plate and camera, and the vertex on the concentrator convex surface is consolidated
Due to level ground, the concave surface array of the concentrator is equipped with multiple mirror-reflection pieces, and the light guide plate and camera are arranged at
The surface of the concentrator, and on the center line of the concentrator, the light guide plate is by can be individually by unlatching/closing
Small headlamp composition,
The method of focusing data processing is carried out using above system to be included：
S1, judge whether camera has taken background picture, if shooting is complete, BGFlag=0 performs program of turning on light, if
BGFlag=1 or 2 then carries out background picture shooting and preserves, juxtaposition BGFlag=0；
S2, as BGFlag=0, open a small headlamp, and be delayed a period of time, by delay make small headlamp
Exposure intensity releases completely；
S3, delay time arrive, and take pictures, and close this small headlamp；
The photo and background picture shot in s4, step s3 subtracts each other, and removes the influence of contextual factor；
The result obtained in s5, step s4 is compared with the pixel threshold set；
S6, the picture element matrix obtained in step s5 is saved in combinatorial matrix intensity, and records what is opened at this time
The number of small headlamp is put into combinatorial matrix Light number；
S7, judge whether small headlamp all ends, yes then terminates, and NO then continues to execute step s1；
S8, step s2-s5 is performed, obtained matrix result and the pixel that is stored in combinatorial matrix intensity is strong
Degree is compared, and retains the larger value of image pixel intensities, updated matrix is saved in combinatorial matrix intensity, and is remembered
The number for recording the small headlamp opened at this time is put into combinatorial matrix Light number；
S9, step s7 is performed, so repeatedly, finally draws the combinatorial matrix of a pixel, pass through what is obtained in step s9
Combinatorial matrix, it can be deduced that the normal line vector of each pixel, after least square fitting, it can be deduced that the curved surface of eyeglass
Normal line vector, therefore deduces that the surface normal vector of every eyeglass, and calculates mirror angle.
Preferably, in the focusing data processing method of above-mentioned Salar light-gathering eyeglass, the camera and light guide plate
It is installed at 2 times of focal lengths of the concentrator.
Preferably, in the focusing data processing method of above-mentioned Salar light-gathering eyeglass, the background picture refers to
Before opening small headlamp, one photo of shooting stores imaging data as background pictures.
Compared with prior art, the advantage of the invention is that：
1st, the error angle of eyeglass is more accurately calculated；
2nd, the time for obtaining the measurement data needed for eyeglass focusing is reduced；
3rd, focus suitable for batch.The time is saved, improves focusing efficiency.
Description of the drawings
It in order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 show the principle schematic of Salar light-gathering eyeglass focusing system in the specific embodiment of the invention；
Fig. 2 show the principle schematic of minute surface sheet emitting adjustment amount in the specific embodiment of the invention；
Fig. 3 show the flow chart of the focusing data processing method of Salar light-gathering eyeglass in the specific embodiment of the invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, detailed retouch is carried out to the technical solution in the embodiment of the present invention
It states, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained on the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Join shown in Fig. 1, Salar light-gathering eyeglass focusing system, including concentrator 1, light guide plate 2 and camera 3, concentrator 1
The vertex on convex surface is fixed on by short pedestal 4 on level ground 5 so that 1 close enough ground of concentrator, personnel need not rely on
Platform or lift are implemented with minute surface focusing adjustment, and focusing operation is completed from ground can greatly save the activity duration.
The concave surface array of concentrator 1 is equipped with multiple mirror-reflection pieces, and light guide plate 2 and camera 3 are being arranged at concentrator 1 just
Top, and on the center line of concentrator, light guide plate 2 by the small headlamp of unlatching/closing by can individually be formed.It is preferred that
, camera 2 and light guide plate 3 are installed at 2 times of focal lengths of concentrator.
The design of small headlamp is to choose target point in mirror-reflection on piece, because the design of mirror-reflection chip architecture is known
, then it is known that the coordinate of target point, according to the mirror-reflection piece parabola equation of design, can calculate reflection light
Position on light guide plate, this position are exactly the installation site of small headlamp, the number of small headlamp, depending on design point
It chooses, every piece of mirror-reflection piece can select 8 target points or more.
It is further fixed on supporting rack on the concave surface of concentrator, first is equipped with along concentrator centerline direction on support frame as described above
Fixture and the second fixture, laser is fixed on first fixture, and the center of second fixture is opened up along centerline direction
There is the aperture passed through for laser.
When opening laser, laser is launched by aperture, impinges upon on the camera lens of camera, consolidates for adjusting light guide plate
It is fixed.
In order to ensure the focusing accuracy of system mirror-reflection piece, it is necessary to assure the center of camera, light guide plate and concentrator
The relative position of line.2 fixtures 8 are fixed in the present embodiment, on supporting rack, first fixture is placed on Stirling engine support
In structure, design, which should meet, can enable the light beam from laser be overlapped with system centre line.Second fixture is mounted on
On Stirling engine mounting, it has a aperture in center, and laser can extend there through.Pitch-row engine framework on target
Height is identical with engine receiver center.When laser passes through and when laser target sub-aperture will make the center line of laser beam and system
It overlaps.
System further includes the computer for being connected to camera and the printer being connected with computer, light guide plate and lamp control
Device is connected, and unlatching/closing of each small headlamp is controlled by lamp controller.Small headlamp is preferably LED light.
In the above-mentioned technical solutions, light guide plate is shone by small headlamp, and optical fiber emits directive from mirror-reflection piece
Camera, camera is for capturing the image formation by rays that mirror-reflection piece reflects, and computer can be used as lamp controller, and order is small
Headlamp unlatching/closing, and the imaging by being connected to camera acquisition reflection light, processing data are so that it is determined that mirror-reflection
The normal angle of piece.Printer is connected to computer, the bolt adjustment amount after calculating to be printed.Laser, fixture
With calibration lamp for so that camera is aligned with the center line of concentrator.
When mounted, system is installed on interior, if building ceiling it is not high enough, can punch on ceiling, camera and
Light guide plate is mounted on ceiling and goes along with sb. to guard him 6 again.
Due to office operation, can there are wind or rainy influence to avoid outdoor.
The focus adjustment method of above-mentioned Salar light-gathering eyeglass focusing system, including step：
(1), by laser alignment so that camera, light guide plate are located on the center line of concentrator；
(2), data setting is carried out, id information is tested in setting, finds the position at all minute surface sheet emitting angles；
(3), data acquisition, before small headlamp is opened, one photo of shooting stores imaging data as background pictures；
A small headlamp is opened, takes pictures and stores imaging data, then turn off the light；
Next small headlamp is opened, take pictures and stores imaging data, continues on/close small headlamp, storage photograph
Machine imaging is until obtain the imaging data of all small headlamps；
(4), data analysis carries out processing analysis to every photo, extracts corresponding pixel data, and each photograph pixel carries out
Packed-pixel data are formed after comparison, and calculate Pixel surface normal, is fitted using least square method, obtains mirror-reflection
The normal of piece, the normal angle and theoretical mirror-reflection piece angle changing rate, difference size must then adjust for minute surface sheet emitting
Amount, join Fig. 2 shown in.
With reference to shown in Fig. 3, in step (3), the method for data acquisition specifically includes：
S1, judge whether to have taken background picture, if shooting is complete, BGFlag=0 performs program of turning on light, if BGFlag
=1 or 2, then it carries out background picture shooting and preserves, juxtaposition BGFlag=0.
S2, as BGFlag=0, open a LED light, and be delayed a period of time, the important role of delay makes LED
The exposure intensity of lamp releases completely.
S3, delay time arrive, and take pictures, and close this LED light.
The photo and background picture shot in s4, s3 subtracts each other, and removes the influence of contextual factor.
The result obtained in s5, s4 is compared with the pixel threshold set, although the main explanation background influence quilt of this step
Stripping is gone out, but still can have the hypo-intense pixels point for being not received by current light reflected light.Threshold value is in journey
Before sequence performs, by the test to camera, have been selected and set.
S6, the picture element matrix obtained in s5 is saved in combinatorial matrix intensity, and records the lamp opened at this time
Number is put into combinatorial matrix Light number.
S7, judge that lamp has all ended, yes then terminates, and NO then continues to execute 1.
S8 and then s2-s5 is performed, obtained matrix result and the pixel that is stored in combinatorial matrix intensity is strong
Degree is compared, and retains the larger value of image pixel intensities, updated matrix is saved in combinatorial matrix intensity.And remember
The number for recording the lamp opened at this time is put into combinatorial matrix Light number.(by the number of recording lamp and order, convenient for
It searches afterwards and which lamp is opened, which pictures corresponding be)
S9, s7 is performed, so repeatedly, finally draws the combinatorial matrix of a pixel.
Pass through the combinatorial matrix obtained in s9, it can be deduced that the normal line vector of each pixel is intended by least square method
After conjunction, it can be deduced that the surface normal vector of eyeglass therefore deduces that the surface normal vector of every eyeglass, and calculates appearance
Face angle degree, printing preserve this information, are supplied to focusing personnel.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
Also there are other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of the application principle is not departed from, several improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (3)
1. a kind of focusing data processing method of Salar light-gathering eyeglass, which is characterized in that
A focusing system is provided, which includes concentrator, light guide plate and camera, and the vertex on the concentrator convex surface is fixed on
Level ground, the concave surface array of the concentrator are equipped with multiple mirror-reflection pieces, and the light guide plate and camera are arranged at described
The surface of concentrator, and on the center line of the concentrator, the light guide plate is by can be individually by the small of unlatching/closing
Lighting lamp group into,
The method of focusing data processing is carried out using above system to be included：
S1, judge whether camera has taken background picture, if shooting is complete, BGFlag=0 performs program of turning on light, if
BGFlag=1 or 2 then carries out background picture shooting and preserves, juxtaposition BGFlag=0；
S2, as BGFlag=0, open a small headlamp, and be delayed a period of time, the irradiation of small headlamp made by delay
Intensity releases completely；
S3, delay time arrive, and take pictures, and close this small headlamp；
The photo and background picture shot in s4, step s3 subtracts each other, and removes the influence of contextual factor, after obtaining background influence stripping
Pixel value；
For the pixel value result obtained in s5, step s4 compared with the pixel threshold set, stripping is not received by current light
The hypo-intense pixels point of line reflection light；
S6, the picture element matrix obtained in step s5 is saved in combinatorial matrix intensity, and records the small-sized photograph opened at this time
The number of bright lamp is put into combinatorial matrix Light number；
S7, judge whether small headlamp all ends, yes then terminates, and NO then continues to execute step s1；
S8, perform step s2-s5, by obtained matrix result and the image pixel intensities that are stored in combinatorial matrix intensity into
Row compares, and retains the larger value of image pixel intensities, updated matrix is saved in combinatorial matrix intensity, and records this
The number of the small headlamp of Shi Kaiqi is put into combinatorial matrix Light number；
S9, step s7 is performed, so repeatedly, finally draws the combinatorial matrix of a pixel, pass through the combination obtained in step s9
Matrix, it can be deduced that the normal line vector of each pixel, after least square fitting, it can be deduced that the surface normal of eyeglass
Vector, therefore deduces that the surface normal vector of every eyeglass, and calculates mirror angle.
2. the focusing data processing method of Salar light-gathering eyeglass according to claim 1, it is characterised in that：The photograph
Machine and light guide plate are installed at 2 times of focal lengths of the concentrator.
3. the focusing data processing method of Salar light-gathering eyeglass according to claim 1, it is characterised in that：The background
Picture refers to that before small headlamp is opened one photo of shooting stores imaging data as background pictures.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101903818A (en) * | 2007-12-21 | 2010-12-01 | 三井造船株式会社 | Mounting position measuring device |
| CN102150282A (en) * | 2008-07-03 | 2011-08-10 | 葛瑞佛德太阳能股份有限公司 | Solar collector assembly |
| CN102495640A (en) * | 2011-12-08 | 2012-06-13 | 深圳市联讯创新工场科技开发有限公司 | Heliostat calibration method and system for solar power station |
| CN102589157A (en) * | 2012-02-22 | 2012-07-18 | 湘潭牵引电气设备研究所有限公司 | Disc-type solar light condensation device |
| 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 |
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2016
- 2016-03-18 CN CN201610156750.7A patent/CN105676411B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101903818A (en) * | 2007-12-21 | 2010-12-01 | 三井造船株式会社 | Mounting position measuring device |
| CN102150282A (en) * | 2008-07-03 | 2011-08-10 | 葛瑞佛德太阳能股份有限公司 | Solar collector assembly |
| CN102495640A (en) * | 2011-12-08 | 2012-06-13 | 深圳市联讯创新工场科技开发有限公司 | Heliostat calibration method and system for solar power station |
| CN102589157A (en) * | 2012-02-22 | 2012-07-18 | 湘潭牵引电气设备研究所有限公司 | Disc-type solar light condensation device |
| 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 |
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