CN108760238A - A kind of LED magnitude tracings light parameter and standard aging monitoring device and method - Google Patents
A kind of LED magnitude tracings light parameter and standard aging monitoring device and method Download PDFInfo
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- CN108760238A CN108760238A CN201810569022.8A CN201810569022A CN108760238A CN 108760238 A CN108760238 A CN 108760238A CN 201810569022 A CN201810569022 A CN 201810569022A CN 108760238 A CN108760238 A CN 108760238A
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- 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
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Abstract
The present invention relates to LED technology field more particularly to a kind of LED magnitude tracings light parameter and standard aging monitoring device and method, device includes multigroup lane testing unit, power supply and data processor；The power supply is respectively that multigroup lane testing unit is powered, and multigroup lane testing unit is connect with data processor respectively；Every group of lane testing unit includes the detector of a LED light source to be tested and the optical signal for acquiring the LED light source to be tested；The mutually isolated setting of multigroup lane testing unit and mutually interference-free between LED light source to be tested two-by-two；The data processor includes optical signal conversion unit, comparing unit and storage unit；The storage unit is stored with the LED magnitude tracing light parameter and standard ageing parameter tables of comparisons；The optical signal conversion unit is connect with detector；The optical signal conversion unit and storage unit are connect with comparing unit respectively.
Description
Technical field
The present invention relates to LED technology field more particularly to a kind of LED magnitude tracings light parameter and standard aging monitoring devices
And method.
Background technology
LED is widely used in advertising media, stage background, building decoration, traffic information, stadiums etc..With the cities LED
Field demand is increasing, emerges more and more manufacturers.Although LED is fast-developing in recent years, since it is as one
The excessive pursuit of kind emerging industry and each manufacturer to interests so that there are one unified industry marks for LED industry
It is accurate.Especially for the problem of aging of LED, the monitoring mode of each manufacturer is all different, typically by simple
Series-parallel system, the method by directly lighting LED light source or lamps and lanterns only ensure persistently lighting for LED light source, to verify it
Parameters, the accuracy of detection such as length, fail-safe analysis, the luminous efficiency of source/light decay failure ratio in service life are relatively low.
Based on this, need a kind of testing efficiency high and LED magnitude tracings light parameter and standard aging monitoring dress with high accuracy
It sets and method.Have great importance to the properties of product of LED if can solve the above problems.
Invention content
The technical problem to be solved by the present invention is to：A kind of testing efficiency height is provided and LED magnitude tracings with high accuracy are used
Optical parameter standard aging monitoring device and method.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of LED magnitude tracings light parameter and standard aging monitoring device, including multigroup lane testing unit, power supply electricity
Source and data processor；The power supply is respectively that multigroup lane testing unit is powered, multigroup lane testing list
Member is connect with data processor respectively；
Every group of lane testing unit includes a LED light source to be tested and the light for acquiring the LED light source to be tested
The detector of signal；Multigroup lane testing unit is mutually isolated to be arranged and two-by-two between LED light source to be tested mutually not by dry
It disturbs；
The data processor includes optical signal conversion unit, comparing unit and storage unit；The storage unit storage
There are the LED magnitude tracing light parameter and standard ageing parameter tables of comparisons；The optical signal conversion unit is connect with detector；The light
Signal conversion unit and storage unit are connect with comparing unit respectively.
Another technical solution that the present invention uses for：
A kind of LED magnitude tracings light parameter and standard aging monitoring method, applied to above-mentioned LED magnitude tracing beche-de-mers without spike
Number standard aging monitoring device, includes the following steps：
S1, every group of lane testing unit detector obtain the optical signal of corresponding LED light source to be tested simultaneously after send
To optical signal conversion unit；
The optical signal of the LED light source to be tested received is converted to corresponding spectroscopic data by S2, optical signal conversion unit；
S3, by the corresponding spectroscopic data and LED magnitude tracings light parameter and standard ageing parameter table of comparisons Plays
Ageing parameter is compared, and obtains comparison result and using comparison result as the ageing parameter of LED light source to be tested.
The beneficial effects of the present invention are：
A kind of LED magnitude tracings light parameter and standard aging monitoring device and method provided by the invention are more by being arranged
The mutually isolated lane testing unit of group, it is mutually interference-free between LED light source to be tested two-by-two, and every group of lane testing
Detector in unit acquires the optical signal of corresponding LED light source to be tested, and optical signal is turned after optical signal conversion unit
Be changed to corresponding spectroscopic data, and with LED magnitude tracings with light parameter and standard ageing parameter table of comparisons Plays ageing parameter into
Row compares, and obtains comparison result and using comparison result as the ageing parameter of LED light source to be tested, multigroup lane testing unit can
It tests simultaneously, improves testing efficiency, carried out analyzing and determining that its corresponding aging is joined according to the actual optical signal of LED light source to be tested
Number, and it is mutually interference-free between LED light source to be tested two-by-two, to ensure measuring accuracy.
Description of the drawings
Fig. 1 is the structural schematic diagram of the LED magnitude tracing light parameter and standard aging monitoring devices of the present invention；
Fig. 2 is the concrete structure schematic diagram of the LED magnitude tracing light parameter and standard aging monitoring devices of the present invention；
Fig. 3 is the step flow chart of the LED magnitude tracing light parameter and standard aging monitoring methods of the present invention；
Label declaration：
1, lane testing unit；11, LED light source to be tested；12, detector；
2, power supply；
3, data processor；31, optical signal conversion unit；32, comparing unit；33, storage unit.
Specific implementation mode
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and coordinate attached
Figure is explained.
The design of most critical of the present invention is：Detector acquisition in every group of lane testing unit is corresponding to be tested
The optical signal of LED light source is converted to corresponding spectroscopic data, and with the LED magnitude tracings light parameter and standard ageing parameter table of comparisons
Plays ageing parameter is compared, ageing parameter of the comparison result as LED light source to be tested.
Please refer to Fig. 1-2, a kind of LED magnitude tracings light parameter and standard aging monitoring device provided by the invention, including
Multigroup lane testing unit, power supply and data processor；The power supply is respectively multigroup lane testing unit
Power supply, multigroup lane testing unit are connect with data processor respectively；
Every group of lane testing unit includes a LED light source to be tested and the light for acquiring the LED light source to be tested
The detector of signal；Multigroup lane testing unit is mutually isolated to be arranged and two-by-two between LED light source to be tested mutually not by dry
It disturbs；
The data processor includes optical signal conversion unit, comparing unit and storage unit；The storage unit storage
There are the LED magnitude tracing light parameter and standard ageing parameter tables of comparisons；The optical signal conversion unit is connect with detector；The light
Signal conversion unit and storage unit are connect with comparing unit respectively.
As can be seen from the above description, the beneficial effects of the present invention are：
LED magnitude tracings provided by the invention light parameter and standard aging monitoring device, it is multigroup mutually isolated by being arranged
Lane testing unit, it is mutually interference-free between LED light source to be tested two-by-two, and the spy in every group of lane testing unit
It surveys device and acquires the optical signal of corresponding LED light source to be tested, optical signal is converted to after optical signal conversion unit corresponding
Spectroscopic data, and be compared with LED magnitude tracings with light parameter and standard ageing parameter table of comparisons Plays ageing parameter, it obtains
Comparison result and using comparison result as the ageing parameter of LED light source to be tested, multigroup lane testing unit can be tested, be carried simultaneously
High testing efficiency carries out analyzing and determining its corresponding ageing parameter according to the actual optical signal of LED light source to be tested, and two-by-two
It is mutually interference-free between LED light source to be tested, to ensure measuring accuracy.
Further, the data processor further includes smoothing processing unit, sampling unit and alignment unit；The light letter
Number converting unit is connect with smoothing processing unit, and the sampling unit is connect with detector, the smoothing processing unit and sampling
Unit is connect with alignment unit respectively, and the alignment unit is connect with comparing unit.
Seen from the above description, transformed spectroscopic data is smoothed, optimizes data, and at the same time sampling is visited
The dark current data for surveying device carries out calibration process to the spectroscopic data after smoothing processing according to the dark current data, played
Filter effect so that finally obtained spectroscopic data is more accurate, to promote measuring accuracy.
Further, the data processor further includes average value processing unit, the average value processing unit respectively with calibration
Unit is connected with comparing unit.
Seen from the above description, the spectroscopic data after multigroup calibration process is carried out by mean value meter by average value processing unit
Calculation is handled, and a final spectroscopic data is obtained, to promote subsequent measuring accuracy.
Further, the power supply uses the power supply of constant current output.
Seen from the above description, measuring accuracy can further be promoted using the power supply of constant current output, is not powered
Electric current influences.
Further, the spectral region of the LED light source to be tested is visual optical band 380nm-780nm, the detection
Device uses Si detectors.
Seen from the above description, it is that its measurement accuracy is not susceptible to environment temperature, humidity using the reason of Si detectors
It influences, and cost is relatively low.And existing PMT detectors are easy to be influenced by the temperature and humidity of environment, generate non-linear drift
It moves, for burn-in test, temperature fluctuation is larger, moreover ccd detector is generally used for two-dimensional imaging formula and high-end beam splitting type system
System is relatively more, and its is with high costs.
Further, the relative position of the LED light source and detector to be tested in the lane testing unit of each group keeps one
It causes.
Seen from the above description, to ensure that the detector acquisition condition of the lane testing unit of each group is identical, not by its position
Setting different factors influences.
Further, the LED light source to be tested in every group of lane testing unit is all from a batch of product.
Seen from the above description, to ensure that the primary condition of the LED light source to be tested of the lane testing unit of each group is identical,
It is not influenced by the different factors of itself.
Refering to Fig. 3, a kind of LED magnitude tracings light parameter and standard aging monitoring method provided by the invention is applied to upper
The LED magnitude tracing light parameter and standard aging monitoring devices stated, include the following steps：
S1, every group of lane testing unit detector obtain the optical signal of corresponding LED light source to be tested simultaneously after send
To optical signal conversion unit；
The optical signal of the LED light source to be tested received is converted to corresponding spectroscopic data by S2, optical signal conversion unit；
S3, by the corresponding spectroscopic data and LED magnitude tracings light parameter and standard ageing parameter table of comparisons Plays
Ageing parameter is compared, and obtains comparison result and using comparison result as the ageing parameter of LED light source to be tested.
As can be seen from the above description, the beneficial effects of the present invention are：
LED magnitude tracings provided by the invention light parameter and standard aging monitoring method, it is multigroup mutually isolated by being arranged
Lane testing unit, it is mutually interference-free between LED light source to be tested two-by-two, and the spy in every group of lane testing unit
It surveys device and acquires the optical signal of corresponding LED light source to be tested, optical signal is converted to after optical signal conversion unit corresponding
Spectroscopic data, and be compared with LED magnitude tracings with light parameter and standard ageing parameter table of comparisons Plays ageing parameter, it obtains
Comparison result and using comparison result as the ageing parameter of LED light source to be tested, multigroup lane testing unit can be tested, be carried simultaneously
High testing efficiency carries out analyzing and determining its corresponding ageing parameter according to the actual optical signal of LED light source to be tested, and two-by-two
It is mutually interference-free between LED light source to be tested, to ensure measuring accuracy.
Further, step S3 is specially：
The corresponding spectroscopic data obtained by step S2 is smoothed, while the dark current number of sampled detector
According to；
Calibration process is carried out to the spectroscopic data after smoothing processing according to the dark current data；
Will calibration treated spectroscopic data and LED magnitude tracings it is old with light parameter and standard ageing parameter table of comparisons Plays
Change parameter to be compared, obtains comparison result and using comparison result as the ageing parameter of LED light source to be tested.
Seen from the above description, transformed spectroscopic data is smoothed, optimizes data, and at the same time sampling is visited
The dark current data for surveying device carries out calibration process to the spectroscopic data after smoothing processing according to the dark current data, played
Filter effect so that finally obtained spectroscopic data is more accurate, to promote measuring accuracy.
Further, step S3 is specially：
Spectroscopic data after multigroup calibration process is subjected to mean value computation processing, obtains a final spectroscopic data；
By final spectroscopic data and LED magnitude tracings light parameter and standard ageing parameter table of comparisons Plays ageing parameter
It is compared, obtains comparison result and using comparison result as the ageing parameter of LED light source to be tested.
Seen from the above description, the spectroscopic data after multigroup calibration process is carried out by mean value meter by average value processing unit
Calculation is handled, and a final spectroscopic data is obtained, to promote subsequent measuring accuracy.
Fig. 1-2 is please referred to, the embodiment of the present invention one is：
A kind of LED magnitude tracings light parameter and standard aging monitoring device provided by the invention, including multigroup channel are surveyed
Try unit 1, power supply 2 and data processor 3；The power supply 2 is respectively that multigroup lane testing unit 1 is powered, more
The lane testing unit 1 of group is connect with data processor 3 respectively；The power supply 2 is electric using the power supply of constant current output
Source can further promote measuring accuracy using the power supply of constant current output, not influenced by supply current.
Every group of lane testing unit 1 is including a LED light source 11 to be tested and for acquiring the LED light source to be tested
The detector 12 of optical signal；Multigroup lane testing unit it is mutually isolated setting and two-by-two between LED light source 11 to be tested mutually
Without interruption；The spectral region of the LED light source to be tested 11 is visual optical band 380nm-780nm, and the detector uses
Si detectors.LED light source to be tested 11 and the relative position of detector 12 in the lane testing unit of each group are consistent.Often
LED light source to be tested 11 in the lane testing unit of group is all from a batch of product.
The data processor 3 includes optical signal conversion unit 31, comparing unit 32 and storage unit 33；The storage is single
Member 33 is stored with the LED magnitude tracing light parameter and standard ageing parameter tables of comparisons；The optical signal conversion unit 31 and detector
12 connections；The optical signal conversion unit 31 and storage unit 33 are connect with comparing unit 32 respectively.The data processor is also
Including smoothing processing unit, sampling unit and alignment unit；The optical signal conversion unit is connect with smoothing processing unit, described
Sampling unit is connect with detector, and the smoothing processing unit and sampling unit are connect with alignment unit respectively, and the calibration is single
Member is connect with comparing unit.Transformed spectroscopic data is smoothed, data are optimized, and at the same time sampled detector
Dark current data carries out calibration process to the spectroscopic data after smoothing processing according to the dark current data, plays filter effect,
So that finally obtained spectroscopic data is more accurate, to promote measuring accuracy.The data processor further includes average value processing
Unit, the average value processing unit are connect with alignment unit and comparing unit respectively.By average value processing unit by multigroup school
Accurate treated that spectroscopic data carries out mean value computation processing, obtains a final spectroscopic data, smart to promote subsequent test
Degree.
The wherein described optical signal conversion unit accesses probe by light intensity and soft exchange component (optical fiber) is matched and detected
Device connects, and light intensity access probe is that (the semi-transparent material glass of white, diffusing reflection is good, and light transmission uniformity is good, visible light for newborn glass
Without apparent light transmission selectivity in range), country's technical maturity, can be used star under domestic manufacturer such as Hefei An Guang research institutes at present
Moon company's buying.Soft exchange component (optical fiber) directly purchases country's SMA9.5 standard interface optical fiber.
Fig. 3 is please referred to, the embodiment of the present invention two is：
A kind of LED magnitude tracings provided by the invention light parameter and standard aging monitoring method is applied to above-mentioned LED amounts
Value is traced to the source with light parameter and standard aging monitoring device, is included the following steps：
S1, every group of lane testing unit detector obtain the optical signal of corresponding LED light source to be tested simultaneously after send
To optical signal conversion unit；
The optical signal of the LED light source to be tested received is converted to corresponding spectroscopic data by S2, optical signal conversion unit；
S3, by the corresponding spectroscopic data and LED magnitude tracings light parameter and standard ageing parameter table of comparisons Plays
Ageing parameter is compared, and obtains comparison result and using comparison result as the ageing parameter of LED light source to be tested.
Wherein, step S3 is specially：
The corresponding spectroscopic data obtained by step S2 is smoothed, while the dark current number of sampled detector
According to；
Calibration process is carried out to the spectroscopic data after smoothing processing according to the dark current data；
Will calibration treated spectroscopic data and LED magnitude tracings it is old with light parameter and standard ageing parameter table of comparisons Plays
Change parameter to be compared, obtains comparison result and using comparison result as the ageing parameter of LED light source to be tested.
Wherein, step S3 is specially：
Spectroscopic data after multigroup calibration process is subjected to mean value computation processing, obtains a final spectroscopic data；
By final spectroscopic data and LED magnitude tracings light parameter and standard ageing parameter table of comparisons Plays ageing parameter
It is compared, obtains comparison result and using comparison result as the ageing parameter of LED light source to be tested.
In conclusion a kind of LED magnitude tracings light parameter and standard aging monitoring device and method provided by the invention, lead to
It crosses and multigroup mutually isolated lane testing unit is set, it is mutually interference-free between LED light source to be tested two-by-two, and every group
Detector in lane testing unit acquires the optical signal of corresponding LED light source to be tested, and optical signal is converted by optical signal
Corresponding spectroscopic data is converted to after unit, and old with light parameter and standard ageing parameter table of comparisons Plays with LED magnitude tracings
Change parameter to be compared, obtains comparison result and using comparison result as the ageing parameter of LED light source to be tested, multigroup channel is surveyed
Examination unit can be tested simultaneously, improve testing efficiency, carried out analyzing and determining its correspondence according to the actual optical signal of LED light source to be tested
Ageing parameter, and it is mutually interference-free between LED light source to be tested two-by-two, to ensure measuring accuracy.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, include similarly
In the scope of patent protection of the present invention.
Claims (10)
1. a kind of LED magnitude tracings light parameter and standard aging monitoring device, which is characterized in that including multigroup lane testing list
Member, power supply and data processor；The power supply is respectively that multigroup lane testing unit is powered, and multigroup is described logical
Road test cell is connect with data processor respectively；
Every group of lane testing unit includes a LED light source to be tested and the optical signal for acquiring the LED light source to be tested
Detector；The mutually isolated setting of multigroup lane testing unit and mutually interference-free between LED light source to be tested two-by-two；
The data processor includes optical signal conversion unit, comparing unit and storage unit；The storage unit is stored with LED
The magnitude tracing light parameter and standard ageing parameter table of comparisons；The optical signal conversion unit is connect with detector；The optical signal
Converting unit and storage unit are connect with comparing unit respectively.
2. LED magnitude tracings according to claim 1 light parameter and standard aging monitoring device, which is characterized in that described
Data processor further includes smoothing processing unit, sampling unit and alignment unit；The optical signal conversion unit and smoothing processing
Unit connects, and the sampling unit is connect with detector, and the smoothing processing unit and sampling unit connect with alignment unit respectively
It connects, the alignment unit is connect with comparing unit.
3. LED magnitude tracings according to claim 2 light parameter and standard aging monitoring device, which is characterized in that described
Data processor further includes average value processing unit, and the average value processing unit is connect with alignment unit and comparing unit respectively.
4. LED magnitude tracings according to claim 1 light parameter and standard aging monitoring device, which is characterized in that described
Power supply uses the power supply of constant current output.
5. LED magnitude tracings according to claim 1 light parameter and standard aging monitoring device, which is characterized in that described
The spectral region of LED light source to be tested is visual optical band 380nm-780nm, and the detector uses Si detectors.
6. LED magnitude tracings according to claim 1 light parameter and standard aging monitoring device, which is characterized in that each group
Lane testing unit in the relative position of LED light source and detector to be tested be consistent.
7. LED magnitude tracings according to claim 1 light parameter and standard aging monitoring device, which is characterized in that every group
Lane testing unit in LED light source to be tested be all from a batch of product.
8. a kind of LED magnitude tracings light parameter and standard aging monitoring method is applied to described in claim 1-7 any one
LED magnitude tracings light parameter and standard aging monitoring device, which is characterized in that include the following steps：
S1, every group of lane testing unit detector obtain the optical signal of corresponding LED light source to be tested simultaneously after be sent to light
Signal conversion unit；
The optical signal of the LED light source to be tested received is converted to corresponding spectroscopic data by S2, optical signal conversion unit；
S3, by the corresponding spectroscopic data and the light parameter and standard ageing parameter table of comparisons Plays aging of LED magnitude tracings
Parameter is compared, and obtains comparison result and using comparison result as the ageing parameter of LED light source to be tested.
9. LED magnitude tracings according to claim 8 light parameter and standard aging monitoring method, which is characterized in that step
S3 is specially：
The corresponding spectroscopic data obtained by step S2 is smoothed, while the dark current data of sampled detector；
Calibration process is carried out to the spectroscopic data after smoothing processing according to the dark current data；
Calibration treated spectroscopic data is joined with the light parameter and standard ageing parameter table of comparisons Plays aging of LED magnitude tracings
Number is compared, and obtains comparison result and using comparison result as the ageing parameter of LED light source to be tested.
10. LED magnitude tracings according to claim 9 light parameter and standard aging monitoring method, which is characterized in that step
S3 is specially：
Spectroscopic data after multigroup calibration process is subjected to mean value computation processing, obtains a final spectroscopic data；
Final spectroscopic data and LED magnitude tracings are carried out with light parameter and standard ageing parameter table of comparisons Plays ageing parameter
Compare, obtains comparison result and using comparison result as the ageing parameter of LED light source to be tested.
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Cited By (1)
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| CN112433142A (en) * | 2020-11-13 | 2021-03-02 | 上海时代之光照明电器检测有限公司 | Intelligent LED light source board life test system |
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