CN103135074B - Lighting source detection board and detection method - Google Patents
Lighting source detection board and detection method Download PDFInfo
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- CN103135074B CN103135074B CN201110373839.6A CN201110373839A CN103135074B CN 103135074 B CN103135074 B CN 103135074B CN 201110373839 A CN201110373839 A CN 201110373839A CN 103135074 B CN103135074 B CN 103135074B
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Abstract
A kind of lighting source detection board and detection method, mainly include pedestal, the dynamic optical detection device of wide area, processing means, enable carrier and sorter, wherein the dynamic optical detection device of wide area includes plural pieces solaode, enable carrier then includes pan feeding arm and conveyer belt, by pan feeding arm the lighting source being illustrated as LED drawn at the beginning and transfer is put on the belt, the detection position multiple lighting sources to be measured being delivered on pedestal by conveyer belt, power supply enable to lighting source makes it luminous, received light signal by solaode again and be converted into electric signal, and signal is reached processing means carry out fourier transform, noise is made to do Fourier inverse conversion again after eliminating, carry out the detection of stroboscopic and stroboscopic effect again, finally sorter is driven to carry out the sorting operations of each LED by processing means.
Description
[technical field]
The present invention is about a kind of stroboscopic for lighting source and the detection of stroboscopic effect, especially a kind of lighting source inspection
Survey board and detection method.
[background technology]
Along with science and technology evolution, use LED constantly to weed out the old and bring forth the new as luminaire, and properties of product are constantly continued
Improve, however caused light source luminescent intensity to change over by power supply power supply instability, circuit design and illuminator set
Count irrational factor so that LED issued light produces luminous intensity periodicity and aperiodically flashes；And this kind of flicker,
Once in the perceptible frequency range of human vision, will cause discomfort, tired out, even because light source luminescent flicker and to example
As the slewing rate speed of rotating object produces erroneous judgement, thus cause unexpected and injury.Therefore, when the fluctuation that light source luminescent is strong and weak
Change the biggest, stroboscopic is the strongest, and flicker frequency fall into visual acuity in the range of, human vision field produce stroboscopic effect
The most serious.
By statistical method, record human eye to the sense quality of light source stroboscopic as it is shown in figure 1, by human vision compared to respectively
In kind different optical flare frequencies, the situation that sensitivity is the highest is defined as 1, and with frequency change by relative sensitivity by
One is shown in figure, uses acquisition visual acuity coefficient curve.Can be obtained by Fig. 1, when flicker frequency is at 0.5Hz, human eye by
Gradually the flicker to light source produces reaction, when flicker frequency is at 10Hz, is that light source scintillation is reacted the sharpest frequency, so by human eye
And, when flicker frequency is at more than 40Hz, the sensitivity of sensation is just gradually reduced, generally in the sudden strain of a muscle of more than 100 times each second
Bright, the mankind are the most difficult to be discovered；As for the frequency of thousands of times change each second, owing to having exceeded the receptive field of human eye very
Many, therefore on human vision almost complete absence of impact.Current LED illumination light source is in manufacturing process, for avoiding allow future
User does not feels well, and all must carry out the detection of stroboscopic.
Known detection mode, is first enable LED to be measured and makes it luminous, and arrange one at LED light emission direction
Having the optical detection gyro of the chequered with black and white ring of light of multiple tracks, rotary optical detects gyro and checks that its picture on surface changes.If
In rotary course, the stable light ring patterns the most as shown in Figure 2 of LED to be measured luminescence and color phenomenon, then it represents that at present
LED to be measured in human vision sensitive range, there is no obvious stroboscopic problem, will not form strong stroboscopic effect yet；Phase
Instead, if by the different style of gyro surface observation to multiple tracks color as shown in Figure 3, and each road ring of light, can be along with top
The change of revolution speed of screw degree, shows the abundant change of direction of rotation, rotary speed and color, then it represents that LED to be measured is people
Class visible visual acuity scope there is stroboscopic problem, it should be judged to that defective products is not suitable as lighting source.
But, such detection mode, it is necessary to judge the change in pattern of optical detection gyro through human eye, it is impossible to reach
Detection operation to automatization, it is impossible to effectively promote detection efficiency, unlikely carries out batch detection operation；And with human eye
Judge easily to make mistakes and not accurate, cause careless omission chance during detection relatively to improve.Therefore, how LED stroboscopic can be examined
Survey in an automated manner, each LED issued light to be measured is converted into data information and is detected by computer automatic decision so that detection
Operation is more accurate, it is to avoid careless omission situation during detection occurs；Adopt lots the most further, increase output effect during detection
Rate, it will be the emphasis that the present invention is to be focused on.
[summary of the invention]
One of present invention purpose is to provide a kind of dynamic optical detection device of the wide area by such as solaode etc
Lighting source detection board, use the automatization stroboscopic detection operation being illuminated light source.
Another object of the present invention is to provide one to receive lighting source through the dynamic optical detection device of wide area produced by electricity
Raw light signal, and it is converted into electric signal computing, to obtain light source dominant flicker frequency, use the illumination learning its stroboscopic effect
Light source detection board.
It is still another object of the present invention to provide the lighting source inspection of the stroboscopic situation of a kind of Aulomatizeted Detect lighting source
Survey method.
A further object of the present invention is to provide one can detect lighting source stroboscopic situation, and judges frequency according to stroboscopic situation
Dodge the lighting source detection method of effect.
A kind of lighting source detection method disclosed according to the present invention, is provided with a detection board and detects at least one photograph to be measured
Source, Mingguang City lighting conditions, this detection board includes one for putting and the pedestal of this lighting source to be measured of enable；One wide area moves
State optical detection device；And a processing means；The method comprises the following steps:
A) enable at least one lighting source to be measured above-mentioned is luminous；
B) detect the lighting conditions of at least one lighting source to be measured above-mentioned with the dynamic optical detection device of above-mentioned wide area and be
Time be converted to the output of electric signal sequential to above-mentioned processing means；
C) extract aforementioned according to the frequency data in the electric signal of sequential, and in this frequency data one is met predetermined deleting
Except the composition of scope filter and obtain one filter this deletion scope composition after effective signal；And
D) according to above-mentioned effective signal, it is determined that at least one lighting source lighting conditions to be measured above-mentioned is the most qualified.
A kind of lighting source detection board disclosed according to the present invention, for one lighting source lighting conditions to be measured of detection,
Including: one for putting and the pedestal of this lighting source to be measured of enable；One is detected this lighting source lighting conditions to be measured and is
Time be converted to electric signal and according to the dynamic optical detection device of wide area of sequential output；And a reception is from the inspection of this wide area dynamic optical
Survey device electric signal, extract aforementioned according to the frequency data in the electric signal of sequential, in this frequency data one is met predetermined
The composition of deletion scope filters and obtains after electric signal measured by the dynamic optical detection device of this wide area filters this deletion scope composition
The processing means of effective signal.
Due to disclosed lighting source detection board and detection method, it is by being arranged on the inspection of wide area dynamic optical
Solaode reception lighting source in survey device is by the light signal produced after electricity, then light signal is converted into electric signal, mat
This, the luminescence of lighting source to be measured can be automated detection, and reach processing means and electric signal data is carried out Fourier turn
Changing, noise does Fourier inverse conversion after eliminating again, i.e. can get the scope of effective signal, thus calculates such as effective signal
Maximum emission intensity and minimum luminous intensity ratio, and/or the above composition of average canbdle power of effective signal accounts for total luminous strong
Degree ratio.Thus, it is possible to judge the stroboscopic situation of each lighting source accurately, and analyze the dominant flicker frequency of stroboscopic
Rate, thus determine the influence degree of stroboscopic effect.Therefore, utilize lighting source detection board and the detection method of the present invention, can
Reach Aulomatizeted Detect operation, effectively promote detection efficiency, and reach to detect more accurately operation, dredging when reducing detection
Leakage situation occurs, thus reaches above-mentioned projects.
[accompanying drawing explanation]
Fig. 1 is the statistics human eye curve chart to the sense quality of light source stroboscopic；
Fig. 2 is known to detect light source stroboscopic with optical detection gyro, and shows stable light ring patterns and color phenomenon
Schematic diagram, is that the light source stroboscopic of explanation detection at present is in normal range；
Fig. 3 is the known schematic diagram detecting light source stroboscopic with optical detection gyro, and showing the different style of multiple tracks color,
It is that the light source stroboscopic of explanation detection at present is in abnormal scope；
Fig. 4 is the top view of the lighting source detection board of the present invention；
Fig. 5 is the side view of the lighting source detection board of Fig. 4；
Fig. 6 is the block chart of the lighting source detection board of Fig. 4；
Fig. 7 is the overhaul flow chart of the lighting source detection board of the present invention；
Fig. 8 be Fig. 4 lighting source detection board conveyer belt LED to be measured is transferred load to detect position top view；
Fig. 9 is the LED to be measured supplying power to be positioned at detection position of the lighting source detection board of Fig. 8 so that it is by electroluminescence,
And the side view of the lighting conditions from LED to be measured is received by solaode；
Figure 10 is that electric signal is extracted the frequency according to timing distribution by the processing means of the lighting source detection board of Fig. 9
The signal curve chart of data；
Figure 11 is that the frequency data of Figure 10 carries out fourier transform, and additionally defines the signal of a frequency boundary function
Curve chart；
Figure 12 is that the frequency boundary function of Figure 11 is multiplied with fourier transform signal curve originally the data of note calculation gained
The signal curve chart of data；
Figure 13 is that the data information of Figure 12 carries out Fourier inverse conversion again and obtains the signal curve chart of effective signal data；
Figure 14 is the signal curve chart that the waveform that Figure 12 measures has the signal data of stroboscopic phenomenon；And
Figure 15 is that the processing means of the lighting source detection board of Fig. 9 drives classification arm to move respectively according to the lighting conditions of LED
It is loaded onto the top view of the classification material casket of correspondence.
[main element symbol description]
11,13,104 signal curve
12 frequency boundary functions
41 pedestals
The 42 dynamic optical detection devices of wide area
421 solaodes
43 processing meanss
44 enable carriers
441 pan feeding arms
443 conveyer belts
45 sorters
451 classification arms
51 LED to be measured
52 have surveyed LED
[detailed description of the invention]
For the present invention aforementioned and other technology contents, feature and effect, preferable at following cooperation Figure of description
In the detailed description of embodiment, can clearly present.
The preferred embodiment of the lighting source detection board of the present invention, as shown in Fig. 4, Fig. 5 and Fig. 6, consists predominantly of pedestal
41, the dynamic optical detection device of wide area 42, processing means 43, enable carrier 44 and sorter 45, the wherein inspection of wide area dynamic optical
Survey device 42 and include plural pieces solaode 421, and enable carrier 44 is provided on pedestal 41, and include pan feeding
Arm 441 and conveyer belt 443, and sorter 45 has further included a classification arm 451, can through pan feeding arm 441 and classification arm 451
Carrying out transfer operation for picking and placeing element, lighting source the most to be measured can be LED, cold-cathode tube or other light-emitting component.As
Testing process shown in Fig. 7, at the beginning as shown in step 701, is drawn lighting source to be measured by pan feeding arm 441 and transfer is put
Put on conveyer belt 443, and the lighting source to be measured of this example is to be illustrated as LED51 to be measured, and by conveyer belt 443 by be measured
The detection position as shown in Figure 8 that LED 51 is delivered on pedestal 41
Next, such as step 702, in the lump with reference to shown in Fig. 9, power supply enable, to being positioned at the LED to be measured 51 detecting position, makes
It is by electroluminescence, for another example step 703, the solaode 421 of the dynamic optical detection device of wide area 42 receive from LED to be measured
The lighting conditions of 51, and be immediately converted to electric signal, then export to processing means 43 according to sequential, the most as indicated in step 704,
Passed through the frequency data according to sequential in the carrying out extraction electric signal of a DAQ card high speed by processing means 43, and extract
After frequency data be converted into curve the most as shown in Figure 10, then frequency data is entered such as step 705 and through processing means 43
Row fourier transform program, extracts fourier transform signal curve 11 as shown in figure 11, in this example, needs when detecting
The noise first carrying out more than two KHz filters, and therefore, can additionally define a frequency boundary function 12, for as meeting frequency
The demarcation line of high-frequency range more than predetermined deletion two KHz of rate signal, the unwanted composition of signal that order is the most measured
Filter, and retain the composition of below remaining two KHz.
Therefore, function 12 of frequency being demarcated is multiplied with fourier transform signal curve 11 originally and remembers calculation, is i.e. formed such as figure
Signal curve 13 shown in 12, next such as step 706, the data information obtained by calculating according to the note that is multiplied carries out Fourier reverse again
Change, so that it may obtain one and the most filtered the flicker frequency composition higher than the high-frequency range of two kHz region, and boundary
Make effective signal curve 104 of dominant flicker frequency.
For another example step 707, the above composition of average canbdle power carrying out effective signal accounts for the calculating of total luminous intensity ratio,
The waveform measured as LED 51 to be measured is to have stroboscopic phenomenon, and during waveform as shown in figure 14, can be by the waveform that measures
Maximum brightness A and minimum brightness B calculates through formula 100 × (A-B)/(A+B), the i.e. available LED to be measured detected at present
Stroboscopic ratio produced by 51；Certainly, except calculating stroboscopic ratio, also can additionally calculate effective signal maximum emission intensity
With minimum luminous intensity ratio, maximum brightness area C and minimum brightness area D is calculated through formula: 100 × (C/C+D), i.e.
The data information of intensity produced by the LED to be measured 51 detected at present can be calculated, and by each LED's 51 to be measured
Data information is separately stored in the middle of memory body.
Last such as step 708, in the lump with reference to shown in Fig. 6 and Figure 15, by processing means 43 depend on each detected complete
The lighting conditions of the survey different stroboscopics corresponding to LED 52, drives the classification arm 451 of sorter 45 according to having surveyed sending out of LED 52
Light situation, transfers load in the classification material casket of correspondence respectively, and transfer i.e. completes to detect operation after terminating, and proceeds next group and treat
The detection operation of the LED surveyed.
Due to disclosed lighting source detection board and detection method, it is to receive LED by solaode
By the light signal produced after electricity, and reconvert becomes to be available for the electric signal data that processing means receives so that the stroboscopic of lighting source
Situation can be automated detection, and signal is carried out the process of electric signal data by processing means, turns with such as Fourier
Change, after the noise in the electric signal data that order receives eliminates, then the conversion of the signal after noise will be eliminated carry out Fourier again
Inverse conversion, i.e. can get the scope of effective signal, thus resolves the frequency of its main stroboscopic further, calculate such as the most again
The effectively maximum emission intensity of signal and minimum luminous intensity ratio, and/or calculate the average canbdle power of effective signal with
Upper composition accounts for total luminous intensity ratio, to detect through computer automation, it is judged that the stroboscopic effect impact of each lighting source is strong
Strong degree, makes whole detection flow process can reach full automation, and effective lifting detects speed, is especially intended to carry out batch detection
During operation, its detection efficiency more can significantly rise, and can have detection efficiency more accurately, thus careless omission when reducing detection
Situation occurs, and reaches above-mentioned all of purpose.
The above only presently preferred embodiments of the present invention, when not limiting, with this, the scope that the present invention implements, the most all
Made simple equivalence change according to the present patent application claims and description and modified, the most still belong to patent of the present invention and contain
In the range of lid.
Claims (9)
1. a lighting source detection method, is provided with a detection board and detects at least one lighting source lighting conditions to be measured, should
Detection board includes one for putting and the pedestal of this lighting source to be measured of enable；One dynamic optical detection device of wide area；And one
Individual processing means；The method comprises the following steps:
A) enable at least one lighting source to be measured above-mentioned is luminous；
B) lighting conditions of at least one lighting source to be measured above-mentioned instant is detected with the dynamic optical detection device of above-mentioned wide area
Be converted to the output of electric signal sequential to above-mentioned processing means, it is characterised in that the method also includes:
C) extract aforementioned according to the frequency data in the electric signal of sequential, and in this frequency data one is met predetermined deletion
The composition of scope filter and obtain one filter this deletion scope composition after effective signal, the most above-mentioned deletion scope includes one
The flicker frequency of individual luminance is higher than the region of two KHz；And
D) according to above-mentioned effective signal, it is determined that at least one lighting source lighting conditions to be measured above-mentioned is the most qualified.
2. detection method as claimed in claim 1, wherein above-mentioned steps c) also includes with secondary step c1 of fourier conversion) enter
The above-mentioned extraction of row；And after above-mentioned extraction completes, in the said frequencies data being extracted, delete and above-mentioned meeting make a reservation for delete model
Secondary step c2 of the composition enclosed).
3. detection method as claimed in claim 2, wherein above-mentioned steps c) also includes obtaining a filter with fourier inverse transform
Secondary step c3 except the effective signal after this deletion scope composition).
4. detection method as claimed in claim 3, also includes by defining the secondary of dominant flicker frequency in above-mentioned effective signal
Step c4).
5. detection method as claimed in claim 3, also includes that being calculated maximum emission intensity by above-mentioned effective signal sends out with minimum
Light intensity ratio；And/or the above composition of average canbdle power accounts for secondary step c5 of total luminous intensity ratio).
6. a lighting source detection board, for detecting a lighting source lighting conditions to be measured, including:
One for putting and the pedestal of this lighting source to be measured of enable；
One detect this lighting source lighting conditions to be measured and be immediately converted to electric signal and according to sequential output wide area dynamic
Optical detection device, it is characterised in that this board also includes:
One receives from this wide area dynamic optical detection device electric signal, extracts the aforementioned frequency according in the electric signal of sequential and provide
Material, composition meeting predetermined deletion scope in this frequency data is filtered and is obtained this wide area dynamic optical detection device institute
Recording electric signal and filter the processing means of the effective signal after this deletion scope composition, the most above-mentioned deletion scope includes that one is sent out
The flicker frequency of light state is higher than the region of two KHz.
7. lighting source detection board as claimed in claim 6, wherein this wide area device for dynamically detecting include the most a piece of too
Sun can battery.
Lighting source detection board the most as claimed in claims 6 or 7, wherein said base includes one group of cause being arranged on
Can carrier.
Lighting source detection board the most as claimed in claims 6 or 7, further includes one group of classification driven by this processing means and fills
Put.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110373839.6A CN103135074B (en) | 2011-11-22 | 2011-11-22 | Lighting source detection board and detection method |
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| CN201110373839.6A CN103135074B (en) | 2011-11-22 | 2011-11-22 | Lighting source detection board and detection method |
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| CN103135074A CN103135074A (en) | 2013-06-05 |
| CN103135074B true CN103135074B (en) | 2016-10-19 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487238A (en) * | 2013-09-17 | 2014-01-01 | 中国科学院半导体研究所 | Light source stroboscopic testing device |
| US9584704B2 (en) * | 2015-01-08 | 2017-02-28 | Gean Technology Co. Limited | Method for detecting electronic lighting flickering |
| CN105301523A (en) * | 2015-10-30 | 2016-02-03 | 马瑞利汽车零部件(芜湖)有限公司 | Car lamp bulb detection device |
| CN105445677A (en) * | 2015-11-13 | 2016-03-30 | 广州市鸿利光电股份有限公司 | Detection method and device for light source stroboflash |
| CN107907841A (en) * | 2017-11-23 | 2018-04-13 | 广东天圣高科股份有限公司 | A kind of lamps and lanterns automatic detecting table |
| CN108375358B (en) * | 2018-02-09 | 2019-11-12 | 乐福特科技（深圳）有限公司 | A kind of nonstandard components detection platform of the rotating illuminating formula with stationary fixture |
| CN113707072B (en) * | 2021-09-03 | 2023-01-31 | 合肥维信诺科技有限公司 | Flicker debugging method and device for display panel |
| CN115840159B (en) * | 2022-09-19 | 2023-06-20 | 大庆恒驰电气有限公司 | Intelligent robot |
| CN116718267B (en) * | 2023-08-08 | 2023-10-31 | 四川京炜交通工程技术有限公司 | Mobile traffic technology monitoring imaging stroboscopic light-supplementing lamp illuminance measurement method |
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| JPH05133840A (en) * | 1991-11-11 | 1993-05-28 | Nippon Telegr & Teleph Corp <Ntt> | Measuring apparatus of optical frequency filter |
| GR1002072B (en) * | 1992-12-21 | 1995-11-30 | Johnson & Johnson Vision Prod | Illumination system for opthalmic lens inspection. |
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| CN101126784A (en) * | 2007-09-18 | 2008-02-20 | 浙江大学 | Photoelectric detector amplitude versus frequency character test method for optical fiber peg-top |
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