CN109633488A - A kind of lamps and lanterns test macro and lamps and lanterns test method - Google Patents
A kind of lamps and lanterns test macro and lamps and lanterns test method Download PDFInfo
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- CN109633488A CN109633488A CN201811391288.4A CN201811391288A CN109633488A CN 109633488 A CN109633488 A CN 109633488A CN 201811391288 A CN201811391288 A CN 201811391288A CN 109633488 A CN109633488 A CN 109633488A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/44—Testing lamps
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Abstract
The present invention discloses a kind of lamps and lanterns test macro and lamps and lanterns test method, wherein lamps and lanterns test macro is for detecting lamp luminescence performance, including initialization module, environmental simulation module, data acquisition module, first processing module, Second processing module and result output module, lamps and lanterns test method is applied to the lamps and lanterns test macro, and it is not high and the technical issues of the abnormal luminous state of tested lamps and lanterns can not match with the field strength of corresponding electromagnetic field, frequency to solve manual testing's precision in the prior art.
Description
Technical field
The present invention relates to auto parts and components electromagnetic compatibility test field, in particular to a kind of lamp for being applicable in electromagnetic compatibility test
Have test macro and lamps and lanterns test method.
Background technique
With the rapid development of automobile industry, there has also been significant progresses for vehicle mounted electrical apparatus equipment technology.Especially light class
Appliance equipment realizes LED as light emitting host substantially, and large driven current density circuit and logic control chip are applied to it
In.Further, since the diversification of vehicle moulding, so that vehicle lamp, with its profile variation, it is seperated that inside will use multiple pcb boards
The mode of work is easily coupled to external field strong jamming, causes vehicle lamp to show abnormal if distribution design is unreasonable,
Or failure.Moreover, to make lamps and lanterns work become more and more intelligent, light display mode more and more various for lights of vehicle technology
Change, huge challenge also thus is brought to the electromagnetic compatibility testing of car light, at the same time, vehicle lamp is as state compulsion
It is required that safety member, to its normal operating conditions have strict requirements, electromagnetic compatibility test class requirement highest.
But the test of intensity variation is directed in electromagnetic compatibility test at present, need tester to pass through monitoring camera
Whether the luminance that head observes tested lamps and lanterns is normal, finally provides abnormal conclusion, Wu Fake whether occur by tester
That sees provides correct test data；Also, when tested lamps and lanterns occur work it is abnormal when, can not be by the luminous shape of tested lamps and lanterns
State and the field strength of electromagnetic field, frequency carry out matching treatment analysis.
Summary of the invention
The purpose of the present invention is to provide a kind of lamps and lanterns test macro and lamps and lanterns test methods, for solving in the prior art
Manual testing's precision is not high and can not be by the abnormal luminous state of tested lamps and lanterns and the field strength of corresponding electromagnetic field, frequency phase
With the technical issues of.
To achieve the goals above, the invention provides the following technical scheme:
A kind of lamps and lanterns test macro, for detecting lamp luminescence performance, which is characterized in that including initialization module, environment
Analog module, data acquisition module, first processing module, Second processing module and result output module；Wherein,
The initialization module, for before the test begins according to the noiseless working frequency for being tested lamps and lanterns, noiseless figure
Sheet data and noiseless light intensity data, setting test frequency acquisition and standard luminescent data；
The first processing module, it is simultaneously defeated in pairs for generating one-to-one field frequency data and magnetic field strength date
Out to the environmental simulation module and the Second processing module；
The environmental simulation module, for simulating different frequency and field according to field frequency data and magnetic field strength date
Strong electromagnetic field, to interfere the luminance of lamps and lanterns；
The data acquisition module, for acquiring the realtime image data of disturbed lamps and lanterns according to the test frequency acquisition
And real-time light intensity data, and real-time light-emitting data is generated according to described image data and the real-time light intensity data and is exported to described
Second processing module；
The Second processing module, it is different for filtering out the real-time light-emitting data with the standard luminescent comparing
Normal light-emitting data, and by the abnormal image data of the abnormal luminous data and synchronization, anomalous field frequency data and different
Normal magnetic field strength date is corresponding to be saved；And for judging to lead to abnormal luminous number occur under any anomalous field frequency data
According to critical magnetic field strength data；
The result output module is used for the abnormal luminous data, the abnormal image data, the anomalous field
Frequency data and anomalous field intensity data statistics output, obtain the test result of lamps and lanterns.
Specifically, the standard luminescent data include etalon optical power data, the photochromic data of standard and standard point bright area
Data；
The real-time light-emitting data includes that real-time light intensity data, Real-Time Optical chromatic number light area data accordingly and in real time.
Preferably, the lamps and lanterns test macro further includes third processing module, and the third processing module is for selecting
Changing magnetic field intensity data is generated under any anomalous field frequency data, and by selected anomalous field frequency data and institute
It states changing magnetic field intensity data to export to the environmental simulation module and the Second processing module, so that the second processing
Module is judged to lead to the critical magnetic field strength data for abnormal luminous data occur under selected anomalous field frequency data.
Preferably, the initialization module includes that data acquisition module initialization unit and Second processing module initialization are single
Member, wherein
The data acquisition module initialization unit, for setting the test frequency acquisition of the data acquisition module to
It is consistent with the noiseless working frequency of the tested car light；
The Second processing module initialization unit, for by the Second processing module etalon optical power data, mark
Quasi-optical chromatic number is accordingly and standard point clear zone numeric field data is respectively set to and the noiseless light intensity data of the tested car light, noiseless
Photochromic data and noiseless to light area data consistent.
Preferably, the data acquisition module includes that image data acquiring unit, light intensity data acquisition unit and data are whole
Close unit, wherein
Described image data acquisition unit is extracted for acquiring realtime image data, and according to the realtime image data
The Real-Time Optical chromatic number evidence and described light area data in real time out；Described image data acquisition unit further includes for storing
State the video memory of realtime image data；
The light intensity data acquisition unit, for acquiring the real-time light intensity data；
The Data Integration unit, for Real-Time Optical chromatic number evidence, the real-time bright area according to synchronization
Data and the real-time light intensity data generate real-time light-emitting data and export to the Second processing module.
Preferably, the Second processing module includes light intensity processing unit, photochromic processing unit and lights regional processing list
Member, wherein
The light intensity processing unit, for extracting the real-time light intensity data and the mark according to the real-time light-emitting data
Quasi-optical strong comparing filters out abnormal light intensity data, and the anomalous field of synchronization is read according to the abnormal light intensity data
Abnormal image data and correspondence in frequency data, anomalous field intensity data, abnormal luminous data and described image memory
It saves；
The photochromic processing unit, for extracting the Real-Time Optical chromatic number evidence and the mark according to the real-time light-emitting data
Quasi-optical color comparing filters out abnormal photochromic data, and according to the anomalous field of the photochromic reading data synchronization of the exception
Abnormal image data and correspondence in frequency data, anomalous field intensity data, abnormal luminous data and described image memory
It saves；
It is described to light regional processing unit, for lighting area data in real time according to the real-time light-emitting data extraction is described
Abnormal point clear zone numeric field data is filtered out with the standard point bright area comparing, and is read according to abnormal point clear zone numeric field data
It takes in anomalous field frequency data, anomalous field intensity data, abnormal luminous data and the described image memory of synchronization
Abnormal image data and corresponding save.
A kind of lamps and lanterns test method is applied to above-mentioned lamps and lanterns test macro, for detecting the luminescent properties of lamps and lanterns, including step
It is rapid:
S1, basis is tested noiseless working frequency, noiseless image data and the noiseless light of lamps and lanterns before the test begins
Strong data, setting test frequency acquisition and standard luminescent data；
S2, one-to-one field frequency data and magnetic field strength date are generated using first processing module；
S3, the electromagnetic field that different frequency and field strength are simulated according to field frequency data and magnetic field strength date, with interference
The luminance of lamps and lanterns；
S4, the realtime image data and real-time light intensity data that disturbed lamps and lanterns are acquired according to the test frequency acquisition, and
Real-time light-emitting data is generated according to the realtime image data and the real-time light intensity data；
S5, the real-time light-emitting data and the standard luminescent comparing filter out to abnormal luminous data, and by institute
It is corresponding with the abnormal image data of synchronization, anomalous field frequency data and anomalous field intensity data to state abnormal luminous data
It saves；And judge to lead to the critical magnetic field strength number for abnormal luminous data occur under any anomalous field frequency data
According to；
S6, by the abnormal luminous data, the abnormal image data, the anomalous field frequency data and the exception
Magnetic field strength date statistics output, obtains the test result of lamps and lanterns.
Specifically, the step S1 includes:
S101, the noiseless working frequency one with tested car light is set by the test frequency acquisition of data acquisition module
It causes；
S102, by the photochromic data of etalon optical power data, standard and standard point clear zone numeric field data in Second processing module
It is respectively set to and the noiseless light intensity data of tested car light, noiseless photochromic data and noiseless lights area data one
It causes.
Preferably, the step S4 includes:
S401, acquisition realtime image data, extract Real-Time Optical chromatic number evidence and real-time point according to the realtime image data
Clear zone numeric field data, and by realtime image data storage into video memory；
Meanwhile the acquisition real-time light intensity data；
S402, according to the Real-Time Optical chromatic number of synchronization according to, described light area data and the Real-Time Optical in real time
Strong data generate real-time light-emitting data and export to Second processing module.
Specifically, the step S5 includes:
S501, the real-time light intensity data and etalon optical power comparing sieve are extracted according to the real-time light-emitting data
Abnormal light intensity data is selected, and reads anomalous field frequency data, the abnormal magnetic of synchronization according to the abnormal light intensity data
Abnormal image data and corresponding preservation in field intensity data, abnormal luminous data and described image memory；
S502, the Real-Time Optical chromatic number evidence and the photochromic comparing sieve of the standard are extracted according to the real-time light-emitting data
Abnormal photochromic data are selected, and according to the anomalous field frequency data of the photochromic reading data synchronization of the exception, abnormal magnetic
Abnormal image data and corresponding preservation in field intensity data, abnormal luminous data and described image memory；
S503, area data and the standard point bright area number are lighted in real time according to the real-time light-emitting data extraction is described
Abnormal point clear zone numeric field data is filtered out according to comparison, and according to the anomalous field of the abnormal point bright area reading data synchronization
Abnormal image data and correspondence in frequency data, anomalous field intensity data, abnormal luminous data and described image memory
It saves；
S504, selection generate changing magnetic field intensity data under any anomalous field frequency data, and will be selected
Anomalous field frequency data and the changing magnetic field intensity data are exported to environmental simulation module and Second processing module, so that
The Second processing module is judged to lead to the critical of abnormal luminous data occur under selected anomalous field frequency data
Magnetic field strength date.
Compared with prior art, lamps and lanterns test macro and lamps and lanterns test method provided by the invention have below beneficial to effect
Fruit:
A kind of lamps and lanterns test macro provided by the invention, before the test begins, initialization module setting test frequency acquisition
With standard luminescent data, default test frequency acquisition is consistent with the noiseless working frequency of tested lamps and lanterns, can make other modules only
It works within the duty cycle of tested lamps and lanterns, reduces the difficulty of subsequent acquisition and comparison, can also facilitate and judge tested lamps and lanterns
Whether working frequency is abnormal because of electromagnetic interference；Standard luminescent data in default Second processing module, it is subsequent objective to facilitate
It is whether abnormal that lamp luminescence state accurately is tested using date comprision.
First processing module generates one-to-one field frequency data and magnetic field strength date, the field frequency data are
Start from scratch the discrete data increased in the form of logarithmic function, covers whole frequency domains of lamps and lanterns Electromagnetic Interference Test, and every
A field frequency data have the magnetic field strength date for being corresponding to it and exporting in pairs, and environmental simulation module is according to field frequency data
The electromagnetic field of different frequency and field strength is simulated, with magnetic field strength date to interfere the luminance of lamps and lanterns, first processing module
With being used cooperatively for environmental simulation module, realize magnetic field environment can controlled and digitization.
Under above-mentioned electromagnetic field environment, data acquisition module acquires disturbed lamps and lanterns according to preset test frequency acquisition
Realtime image data and real-time light intensity data, generate real-time light-emitting data；Later, Second processing module is real-time by what is received
Light-emitting data and preset standard luminescent comparing filter out abnormal luminous data, and by abnormal luminous data and synchronization
Abnormal image data, anomalous field frequency data and anomalous field intensity data are corresponding saves, solve tested lamps and lanterns
The technical issues of abnormal luminous state matches with the field strength of corresponding electromagnetic field, frequency, convenient for the accurate objective from data
Analyze the relationship between lamp luminescence abnormal state and the interference of electromagnetic field；Second processing module can also judge in any abnormal magnetic
Lead to the critical magnetic field strength data for abnormal luminous data occur under field frequencies range data, it, also can be by exception during judgement
Light-emitting data is corresponding with the abnormal image data of synchronization, anomalous field frequency data and anomalous field intensity data to be saved,
The accurate critical value for causing lamp luminescence abnormal state is objectively obtained from data.
Final result output module is by each abnormal luminous data and the abnormal image data of synchronization, anomalous field
Frequency data and the corresponding statistics output of anomalous field intensity data, obtain accurate lamps and lanterns test result, solve the prior art
Middle manual testing's precision is not high and can not be by the abnormal luminous state of tested lamps and lanterns and the field strength of corresponding electromagnetic field, frequency phase
The technical issues of matching.
The present invention also provides a kind of lamps and lanterns test method, which is obtained accurately using above-mentioned lamps and lanterns test macro
Lamps and lanterns test result, it is not high and can not be by the abnormal luminous shape of tested lamps and lanterns to solve manual testing's precision in the prior art
The technical issues of state matches with the field strength of corresponding electromagnetic field, frequency.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of modular diagram of lamps and lanterns test macro provided in an embodiment of the present invention；
Fig. 2 is a kind of modular diagram of intensity collection unit provided in an embodiment of the present invention；
Fig. 3 is a kind of electrical block diagram of intensity collection unit provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of tested lamps and lanterns point bright area provided in an embodiment of the present invention；
Fig. 5 is a kind of schematic diagram of lamps and lanterns test method provided in an embodiment of the present invention.
1- anechoic chamber, 2- optical fiber；
3- data acquisition module, 31- reference voltage unit；
32- photoelectric conversion unit, 33- sampled signal adjustment unit；
331- automatic adaptation device, 34- acquisition unit；
341- micro-control unit, 3411-A/D converter；
342-CAN bus.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel all other embodiment obtained without creative labor belongs to the model that the present invention protects
It encloses.
Embodiment one
Referring to Fig. 1, a kind of lamps and lanterns test macro provided in an embodiment of the present invention is wrapped for detecting lamp luminescence performance
Include initialization module, environmental simulation module, data acquisition module, first processing module, Second processing module and result output mould
Block.
Initialization module connects and acts on data acquisition module and Second processing module, according to the noiseless of tested lamps and lanterns
Working frequency, noiseless image data and noiseless light intensity data, setting test frequency acquisition and standard luminescent data；Initialization
Module includes data acquisition module initialization unit and Second processing module initialization unit, data acquisition module initialization unit
For setting consistent with the noiseless working frequency of tested car light for the test frequency acquisition of data acquisition module；Second processing
Module initialization unit is used for the photochromic data of etalon optical power data, standard and standard point bright area in Second processing module
Data are respectively set to and the noiseless light intensity data of tested car light, noiseless photochromic data and noiseless light area data
Unanimously.
Before the test begins, initialization module setting test frequency acquisition and standard luminescent data preset test acquisition frequency
Rate is consistent with the noiseless working frequency of tested lamps and lanterns, other modules can be made only to work within the duty cycle of tested lamps and lanterns, dropped
Whether low subsequent acquisition and the difficulty of comparison can also facilitate the working frequency for judging tested lamps and lanterns because electromagnetic interference generation is different
Often；Standard luminescent data in default Second processing module facilitate and subsequent objective are accurately tested lamp using date comprision
Whether abnormal has luminance.
Preferably, it is straight according to the model for being tested lamps and lanterns to can be initialization module for test frequency acquisition and standard luminescent data
It connects and is arranged after transferring corresponding noiseless working frequency, noiseless image data and noiseless light intensity data in database；
It is also possible to initialization module and acquires multiple groups without dry in the case where not applying to tested lamps and lanterns and interfering using data acquisition module
Image data and light intensity data are disturbed, averaged extracts noiseless working frequency, noiseless image data and noiseless light
It is arranged after strong data.
It is worth noting that, the default standard luminescent data of initialization module are not necessarily a definite value, it is also possible to
Meet the interval value of vehicle lamp electromagnetic interference error criterion；Standard luminescent data include etalon optical power data, the photochromic number of standard
Accordingly and standard point clear zone numeric field data.
First processing module for generate one-to-one field frequency data and magnetic field strength date and in pairs output to
Environmental simulation module and Second processing module；The field frequency data be start from scratch increased in the form of logarithmic function it is discrete
Data cover whole frequency domains of lamps and lanterns Electromagnetic Interference Test, and each field frequency data are corresponding to it pairs of output
Magnetic field strength date.
Environmental simulation module simulates the electromagnetism of different frequency and field strength according to field frequency data and magnetic field strength date
, to interfere the luminance of lamps and lanterns, first processing module is used cooperatively with environmental simulation module, realizes magnetic field environment
It can controlled and digitization.
Data acquisition module is according to the preset test frequency acquisition of initialization module, to acquire the real-time figure of disturbed lamps and lanterns
As data and real-time light intensity data, and real-time light-emitting data is generated according to acquired image data and real-time light intensity data and is exported
To the Second processing module, wherein real-time light-emitting data includes that real-time light intensity data, Real-Time Optical chromatic number are lighted accordingly and in real time
Area data.
Preferably, data acquisition module includes image data acquiring unit, light intensity data acquisition unit and Data Integration list
Member.
Wherein, image data acquiring unit further includes the video memory being used cooperatively, for storing realtime image data,
Image data acquiring unit acquires realtime image data, and extracts Real-Time Optical chromatic number evidence and real-time point according to realtime image data
Clear zone numeric field data；At the same time, light intensity data acquisition unit acquires the real-time light intensity data；Later, Data Integration unit root
According to the Real-Time Optical chromatic number evidence of synchronization, lights area data and the real-time light-emitting data of real-time light intensity data generation in real time and export
To Second processing module.Preferably, data are carried out between Data Integration unit and Second processing module in the form of CAN bus
Interaction, the efficiency of improve data transfer.
Real-time light-emitting data and standard luminescent comparing are filtered out abnormal luminous data by Second processing module, and will sieve
Abnormal image data, anomalous field frequency data and the anomalous field intensity data of the abnormal luminous data and synchronization selected
It is corresponding to save.
In addition, Second processing module can also cooperate third processing module, environmental simulation module, data acquisition module to sentence
Break the critical magnetic field strength data for causing abnormal luminous data occur under any anomalous field frequency data.
Second processing module includes light intensity processing unit, photochromic processing unit and lights regional processing unit.Wherein, light intensity
Processing unit extracts real-time light intensity data according to real-time light-emitting data and etalon optical power comparing filters out abnormal light intensity data,
And anomalous field frequency data, the anomalous field intensity data, exception of synchronization are read according to each abnormal light intensity data
The abnormal image data of synchronization and corresponding preservation in light-emitting data and video memory.
Photochromic processing unit extracts Real-Time Optical chromatic number according to real-time light-emitting data and filters out according to the photochromic comparing of standard
Abnormal photochromic data, and according to the anomalous field frequency data of each abnormal photochromic reading data synchronization, anomalous field
The abnormal image data of synchronization and corresponding preservation in intensity data, abnormal luminous data and video memory.
It lights regional processing unit and area data and standard point bright area number is lighted according to the extraction of real-time light-emitting data in real time
Abnormal point clear zone numeric field data is filtered out according to comparison, and according to the anomalous field frequency of abnormal point bright area reading data synchronization
The abnormal image data and correspondence of synchronization in data, anomalous field intensity data, abnormal luminous data and video memory
It saves.
It should be noted that by taking light for vehicle as an example, referring to Fig. 4, the light emitting region of lamps and lanterns, i.e. point bright area journey multi-region
The display in domain, Multiple Shape, any one region are likely to be arrived by electric jamming, i.e., each region needs during the test
It monitors；By taking vehicle turn signal as an example, working signal is the Dynamic Signal of a 1.25Hz, and test process need to monitor whether out
Now because of the turn signals disabler failure such as extinguishing caused by anti-interference；It is with " horse race at present there are also dynamic steering lamp in state-of-the-art technology
What the form of lamp " was lighted one by one, partial region extinguishing may occur in anti-interference test, or to light logic incorrect
Failure；The above failure all needs to light whether area data is realized extremely by judgement.
In addition to this, Second processing module can also lighting situation (lighting area data) and judge according to tested car light
The working frequency of tested car light whether because the interference of electromagnetic field generate it is abnormal: it is noiseless due to test frequency acquisition and tested car light
Working frequency is consistent, therefore, if in test collection period, the car light that should be lit originally or the car light area that should be lit
If domain does not light, then judge that the working frequency of tested car light breaks down.
Specifically, third processing module is for selecting any anomalous field frequency data, in selected anomalous field frequency
Changing magnetic field intensity data is generated under rate data, and by selected anomalous field frequency data and changing magnetic field intensity number
According to output to environmental simulation module and the Second processing module；Environmental simulation module is according to selected anomalous field frequency number
Corresponding electromagnetic field is generated to interfere the luminance of tested lamps and lanterns according to changing magnetic field intensity data, is next adopted by data
Collection module acquires the realtime image data and real-time light intensity data of disturbed lamps and lanterns in real time, according to acquired image data and reality
When light intensity data generate real-time light-emitting data and export to the Second processing module；Second processing module by real-time light-emitting data with
Standard luminescent comparing filters out abnormal luminous data, while the institute that will be filtered out under selected anomalous field frequency data
The abnormal luminous data having are corresponding with the abnormal image data of synchronization and anomalous field intensity data to be saved, later at second
Module is managed according to all anomalous field intensity datas filtered out, judges to lead under selected anomalous field frequency data
Cause the critical magnetic field strength data for abnormal luminous data occur.
Using a kind of lamps and lanterns test macro provided in an embodiment of the present invention, in the electromagnetic field that environmental simulation module is simulated
Under environment, data acquisition module according to it is preset test frequency acquisition come acquire disturbed lamps and lanterns realtime image data and in real time
Light intensity data generates real-time light-emitting data；Later, Second processing module is by the real-time light-emitting data received and preset standard
Light-emitting data comparison filters out abnormal luminous data, and by abnormal luminous data and the abnormal image data of synchronization, exception
Field frequency data and anomalous field intensity data are corresponding to be saved, solve by the abnormal luminous state of tested lamps and lanterns with it is corresponding
The technical issues of field strength, the frequency of electromagnetic field match, convenient for analyzing to accurate objective lamp luminescence abnormal state from data
With the relationship before the interference of electromagnetic field；Second processing module can also judge to cause to occur under any anomalous field frequency data
The critical magnetic field strength data of abnormal luminous data also can be by abnormal luminous data and synchronization during judgement
Abnormal image data, anomalous field frequency data and anomalous field intensity data are corresponding to be saved, and is objectively drawn from data
Play the accurate critical value of lamp luminescence abnormal state.
A kind of lamps and lanterns test macro provided in an embodiment of the present invention further includes result output module, is used for abnormal luminous number
According to, abnormal image data, anomalous field frequency data and the statistics output of anomalous field intensity data, obtain the test knot of lamps and lanterns
Fruit.Preferably, the test result be using anomalous field frequency as independent variable, the corresponding abnormal image data of corresponding display,
The chart or curve of anomalous field frequency data and anomalous field intensity data.
As it can be seen that result output module is by the abnormal image data of each abnormal luminous data and synchronization, abnormal magnetic
Field frequencies range data and the corresponding statistics output of anomalous field intensity data, obtain accurate lamps and lanterns test result, solve existing skill
Manual testing's precision is not high in art and can not be by the abnormal luminous state of tested lamps and lanterns and the field strength of corresponding electromagnetic field, frequency
The technical issues of matching.
Since the electromagnetic compatibility test of lamps and lanterns is carried out in darkroom, the light intensity data in the embodiment of the present invention acquires single
Member can use following scheme:
Fig. 3 or Fig. 4 is please referred to, which carries out in anechoic chamber, 1, the light intensity number in lamps and lanterns test macro
It include light guide module and data acquisition module 3 according to acquisition unit, light guide module is by the light intensity signal of tested lamps and lanterns from anechoic chamber, 1
It exports and is transferred to data acquisition module 3.
The electromagnetic compatibility test of lamps and lanterns is to be placed in lamps and lanterns in anechoic chamber, to carry out, and light intensity number provided in this embodiment
According to acquisition unit be equipped with dedicated for by the light intensity signal of tested lamps and lanterns from anechoic chamber, derived light guide module, light guide module
It is realized using optical fiber 2, one end of optical fiber 2 is fixed on tested lamp surface, and the other end is pierced by by the waveguide aperture of anechoic chamber, 1,
It is connected to the intensity collection interface of 1 external data acquisition module of anechoic chamber, optical fiber 2 itself will not introduce new electromagnetic interference letter
Number, the light intensity signal of tested lamps and lanterns can be exported completely in the case where the anti-interference test for not influencing to carry out tested lamps and lanterns,
And then data acquisition is carried out in data acquisition module 3；Optical fiber 2 can have 1,2 or a plurality of, realize the light intensity letter of multichannel
Number acquisition, and optical fiber 2 has biggish light intensity input reference signal, and sensitive wave length range (λ) is in 430nm-1010nm, covering
Eye recognition range.Data acquisition module 3 is set to outside the anechoic chamber, and acquisition module 3 includes the light being successively electrically connected
Electrotransformation unit 32, sampled signal adjustment unit 33 and acquisition unit 34.
Wherein, photoelectric conversion unit 32, including the photo resistance Re connecting with optical fiber 2, specifically, photo resistance Re is set to
In intensity collection interface, one end of optical fiber is fixed on the tested lamp surface in anechoic chamber, 1, and other end connection intensity collection connects
Mouth is simultaneously affixed on the surface photo resistance Re, and light intensity signal derived from optical fiber 2 is converted corresponding analog voltage by photo resistance Re to be believed
Number.
It preferably, further include turning inside photoelectric conversion unit 32 with the concatenated divider resistance Rref of photo resistance Re, photoelectricity
Change 32 one end of unit and connect operating voltage VCC, other end ground connection, that is, divider resistance Rref mono- terminates operating voltage VCC, another
Photo resistance Re is terminated, one end ground connection that photo resistance Re is not connect with divider resistance Rref；Conversely, can also be by photo resistance
Re mono- terminates operating voltage VCC, another termination divider resistance Rref, one end that divider resistance Rref is not connect with photo resistance Re
Ground connection.Photo resistance Re according to optical fiber 2 be transmitted through come light intensity signal change and obtain different resistance values, and then can be by adopting
The different analog voltage signals generated on collection photo resistance Re characterize the variation of tested lamps and lanterns luminous intensity.
Sampled signal adjustment unit 33 is connected to after photoelectric conversion unit 32, for generating photoelectric conversion unit 32
Analog voltage signal zoom in or out, including operational amplifier U1 and the 6th resistance R6；Operational amplifier U1 electrode input end
It is coupled between divider resistance Rref and photo resistance Re, operational amplifier U1 negative input is coupled to the one of the 6th resistance R6
End, the output end of the other end coupling operational amplifier U1 of the 6th resistance R6.Wherein, operational amplifier U1 can use LM358
Equal LM series operational amplifier can also be put using the integrated computation amplification chip or operation that other are able to achieve voltage amplification function
Big circuit.Sampled signal adjustment circuit, can automatic identification optimal light energy degree collection value, avoid making because light intensity is excessive or light intensity is too small
It is unreasonable at sampled value.Sampled signal adjustment unit 33 further includes for analog voltage signal to be fitted to suitable amplification factor
Automatic adaptation device 331, to obtain a suitable collection value as benchmark, it is notable that the amplification factor be greater than 0
And when less than 1, realizes the diminution to analog voltage signal, be applicable to reducing luminous intensity collection value into a little automobile headlamps etc.
The biggish lamps and lanterns of light intensity；When the amplification factor is greater than 1, realizes the amplification to analog voltage signal, be applicable to adopt light intensity
Set value amplifies a little lesser lamps and lanterns of atmosphere lamp isocandela；When the amplification factor is equal to 1, analog voltage signal initial value is kept not
Become.
One end of automatic adaptation device 331 is coupled between the operational amplifier U1 and the 6th resistance R6, other end coupling
Yu Di.
Specifically, the adapter circuit of automatic adaptation device 331 including multiple groups parallel connection, adapter circuit is by the relay that is cascaded
Device and adaptation resistance composition；Relay is coupled to the control pin of micro-control unit 341 and by the control of micro-control unit 341.
For example, in Fig. 2 automatic adaptation device 331 include first to the 5th relay S1~S5, first resistor to the 5th resistance R1~
R5；Wherein, first one end relay S1 is coupled between operational amplifier U1 and the 6th resistance, and the one end first resistor R1 is coupled to
First relay S1, the other end are coupled to ground.Similarly, relay S2~S5 is connect with resistance R2~R5 using the same manner, and
Each relay S1~S5 is respectively coupled to the control pin of micro-control unit 341.Wherein, relay can be by micro-control with other
The electronic switch substitution that unit 341 processed controls.
Automatic adaptation device 331 cooperates sampled signal adjustment unit 33, for voltage signal to be fitted to suitable times magnification
Number keeps measurement more accurate；Due to needing to detect the both of which of tested lamps and lanterns in test, first is that under working condition, i.e. lamps and lanterns
It is always on, another kind is OFF state, i.e., lamps and lanterns extinguish.Under both modes, the voltage value that photo resistance Re is up-sampled may
It is excessive may also be too small, cause when there is light-intensity variation exception, the fluctuation range of analog voltage signal can on photo resistance Re
It can meeting very little.Therefore, when micro-control unit 341 collects relevant voltage value, can first compared with inner setting voltage range value,
If it is determined that measured value then controls the relay of automatic adaptation device 331 not in this section, different resistance values is selected into electric discharge electricity
The amplification factor of Auto-matching electric signal is carried out on road with this, so that micro-control unit 341 collects reasonable voltage value, increases and surveys
Try accuracy.
Acquisition unit 34 is connected to after signal adjustment unit, including the micro-control unit 341 being used cooperatively and CAN bus
342, analog voltage signal is converted digital signal by micro-control unit 341, which is the collected light intensity number of institute
According to light intensity data is exported by CAN bus 342 and gives Data Integration unit.
Specifically, micro-control unit 341 is MCU, also known as one chip microcomputer or single-chip microcontroller, micro-control unit 341
Including A/D converter 3411 and CAN output interface, wherein the input pin of A/D converter 3411 connects operational amplifier
The output end of U1, for converting digital signal, high sampling rate collection voltages value, micro-control unit 341 for analog voltage signal
After the digital signal simple process of voltage value, CAN output interface connects data integral unit by CAN bus 342.Make
Tested lamps and lanterns light is exported with optical fiber, electric signal is converted optical signal into, is acquired by high-speed a/d and be sent to microcontroller list
Member 341, light intensity data is transmitted to Data Integration cell processing by way of CAN bus by control unit 341, is able to achieve multichannel letter
It number acquires, is not limited by peripheral apparatus simultaneously, while guaranteeing acquisition rate, light intensity data is exported give Data Integration list in time
Member.The light intensity data that micro-control unit 341 acquires each channel is transmitted by bus form to Data Integration unit, using CAN
The mode of bus transfer can transmit light intensity data to Data Integration unit with low delay multichannel.
Fig. 3 or Fig. 4 is please referred to, light intensity data acquisition unit further includes reference voltage unit, which includes
Diode D1, three-terminal voltage-stabilizing integrated chip U2, first capacitor C1, the second capacitor C2, third capacitor C3 and the 4th capacitor C4；Its
In, three-terminal voltage-stabilizing integrated chip U2 model 78XX series, preferably model 7805.
The anode of diode D1 is coupled to external 12V power supply, and cathode couples the first pin of three-terminal voltage-stabilizing integrated chip U2,
First capacitor C1 anode is coupled to diode D1 cathode, and the second capacitor C2 anode is coupled to diode D1 cathode, three-terminal voltage-stabilizing collection
Ground, the third pin coupling third capacitor C3 anode of three-terminal voltage-stabilizing integrated chip U2 and the are coupled at the second pin of chip U2
Four capacitor C4 anodes；The third pin output services voltage VCC of the three-terminal voltage-stabilizing integrated chip U2 is other subsequent circuit lists
Member provides stable operating voltage.
Preferably, light intensity data acquisition unit is equipped with shell, and shell is for accommodating and protecting electronic component, and shell
On offer opening for optical fiber and CAN bus cabling, it is convenient to be transmitted with external signal；Shell uses metal material, example
Iron shell is such as selected, electromagnetic interference signal can be further reduced.Light intensity data acquisition unit provided by the invention, guide-lighting mould
The light intensity signal of tested lamps and lanterns is transferred to the photoelectric conversion unit of data acquisition module by block, by photo resistance (Re) by institute
It states light intensity signal derived from optical fiber and is converted into corresponding analog voltage signal, then believed analog voltage by sampled signal adjustment unit
Number amplification, be finally converted to digital signal (i.e. light intensity data) by the micro-control unit in acquisition unit, and by CAN bus it is defeated
Out to the Data Integration unit of electromagnetic compatibility test, realizes and acquire the intensity signal of tested lamps and lanterns in the form of light intensity data
Out, it while avoiding for entire light intensity data acquisition unit to be placed on and introduces new electromagnetic interference in anechoic chamber, it is thus also avoided that
Electromagnetic compatibility test environment generates interference to the work of light intensity data acquisition unit, keeps the light intensity data of acquisition more accurate.
Embodiment two
Referring to Fig. 5, a kind of lamps and lanterns test method provided in an embodiment of the present invention, applied to the lamps and lanterns in above-described embodiment
Test macro, for detecting the luminescent properties of lamps and lanterns, comprising steps of
S1, basis is tested noiseless working frequency, noiseless image data and the noiseless light of lamps and lanterns before the test begins
Strong data, setting test frequency acquisition and standard luminescent data；
S2, one-to-one field frequency data and magnetic field strength date are generated；
S3, the electromagnetic field that different frequency and field strength are simulated according to field frequency data and magnetic field strength date, with interference
The luminance of lamps and lanterns；
S4, the realtime image data and real-time light intensity data that disturbed lamps and lanterns are acquired according to test frequency acquisition, and according to
Realtime image data and real-time light intensity data generate real-time light-emitting data；
S5, real-time light-emitting data and standard luminescent comparing filter out to abnormal luminous data, and by abnormal luminous number
It is saved according to corresponding with the abnormal image data of synchronization, anomalous field frequency data and anomalous field intensity data；And sentence
It is disconnected to go out to lead to the critical magnetic field strength data for abnormal luminous data occur under any anomalous field frequency data；
S6, abnormal luminous data, abnormal image data, anomalous field frequency data and anomalous field intensity data are counted
Output, obtains the test result of lamps and lanterns.
Specifically, step S1 includes:
S101, the noiseless working frequency one with tested car light is set by the test frequency acquisition of data acquisition module
It causes；
S102, by the photochromic data of etalon optical power data, standard and standard point clear zone numeric field data in Second processing module
It is respectively set to and the noiseless light intensity data of tested car light, noiseless photochromic data and noiseless lights area data one
It causes.
Preferably, step S4 includes:
S401, acquisition realtime image data extract Real-Time Optical chromatic number evidence and in real time point clear zone according to realtime image data
Numeric field data, and by the storage of realtime image data into video memory；
Meanwhile acquiring real-time light intensity data；
S402, according to the Real-Time Optical chromatic number of synchronization according to, in real time light area data and real-time light intensity data generate it is real
When light-emitting data and export to Second processing module.
Specifically, step S5 includes:
S501, abnormal light intensity is filtered out according to the real-time light intensity data of real-time light-emitting data extraction and etalon optical power comparing
Data, and sent out according to the anomalous field frequency data, anomalous field intensity data, exception that abnormal light intensity data reads synchronization
Abnormal image data and corresponding preservation in light data and video memory；
S502, that Real-Time Optical chromatic number is extracted according to real-time light-emitting data is abnormal photochromic according to filtering out with the photochromic comparing of standard
Data, and according to the anomalous field frequency data of abnormal photochromic reading data synchronization, anomalous field intensity data, abnormal hair
Abnormal image data and corresponding preservation in light data and video memory；
S503, it is extracted according to real-time light-emitting data and lights area data and standard point bright area comparing filters out in real time
Abnormal point clear zone numeric field data, and according to the anomalous field frequency data of abnormal point bright area reading data synchronization, abnormal magnetic
Abnormal image data and corresponding preservation in field intensity data, abnormal luminous data and video memory；
S504, selection generate changing magnetic field intensity data under any anomalous field frequency data, and will be selected
Anomalous field frequency data and changing magnetic field intensity data are exported to environmental simulation module and Second processing module, so that second
Processing module is judged to lead to the critical magnetic field strength for abnormal luminous data occur under selected anomalous field frequency data
Data.
In addition to this, in lamps and lanterns test method provided in an embodiment of the present invention, step S5 further include:
S505, Second processing module is utilized to judge the working frequency for being tested car light according to the area data of lighting for being tested car light
Whether because of interference of electromagnetic field generation exception: in test collection period, if the functional area of tested car light or tested car light does not have
It is lit, then judges that the working frequency of tested car light breaks down.
The lamps and lanterns test method obtains accurate lamps and lanterns test result using above-mentioned lamps and lanterns test macro, solves existing skill
Manual testing's precision is not high in art and can not be by the abnormal luminous state of tested lamps and lanterns and the field strength of corresponding electromagnetic field, frequency
The technical issues of matching.
Compared with prior art, the beneficial effect of lamps and lanterns test method provided in an embodiment of the present invention and above-described embodiment one
The beneficial effect of the lamps and lanterns test macro of offer is identical, and the other technical characteristics in this method are disclosed with above-described embodiment system
Feature it is identical, this will not be repeated here.
It will appreciated by the skilled person that realizing that all or part of the steps in foregoing invention method is can to lead to
Program is crossed to instruct relevant hardware and complete, above procedure can store in computer-readable storage medium, the program
When being executed, each step including above-described embodiment method, and the storage medium may is that ROM/RAM, magnetic disk, CD,
Storage card etc..The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, appoints
What those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, answer
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of lamps and lanterns test macro, for detecting lamp luminescence performance, which is characterized in that including initialization module, environment mould
Quasi- module, data acquisition module, first processing module, Second processing module and result output module；Wherein,
The initialization module, for before the test begins according to the noiseless working frequency for being tested lamps and lanterns, noiseless picture number
According to noiseless light intensity data, setting test frequency acquisition and standard luminescent data；
The first processing module, for generate one-to-one field frequency data and magnetic field strength date and in pairs output to
The environmental simulation module and the Second processing module；
The environmental simulation module, for simulating different frequency and field strength according to field frequency data and magnetic field strength date
Electromagnetic field, to interfere the luminance of lamps and lanterns；
The data acquisition module, for acquiring the realtime image data and reality of disturbed lamps and lanterns according to the test frequency acquisition
When light intensity data, and real-time light-emitting data is generated according to described image data and the real-time light intensity data and is exported to described second
Processing module；
The Second processing module, for the real-time light-emitting data and the standard luminescent comparing to be filtered out abnormal hair
Light data, and by the abnormal image data of the abnormal luminous data and synchronization, anomalous field frequency data and abnormal magnetic
Field intensity data are corresponding to be saved；And for judging to lead to abnormal luminous data occur under any anomalous field frequency data
Critical magnetic field strength data；
The result output module is used for the abnormal luminous data, the abnormal image data, the anomalous field frequency
Data and anomalous field intensity data statistics output, obtain the test result of lamps and lanterns.
2. lamps and lanterns test macro according to claim 1, which is characterized in that the standard luminescent data include etalon optical power
The photochromic data of data, standard and standard point clear zone numeric field data；
The real-time light-emitting data includes that real-time light intensity data, Real-Time Optical chromatic number light area data accordingly and in real time.
3. lamps and lanterns test macro according to claim 2, which is characterized in that the lamps and lanterns test macro further includes at third
Module is managed, the third processing module generates changing magnetic field intensity number for selecting under any anomalous field frequency data
According to, and selected anomalous field frequency data and the changing magnetic field intensity data are exported to the environmental simulation module
With the Second processing module so that the Second processing module is judged to cause under selected anomalous field frequency data
There are the critical magnetic field strength data of abnormal luminous data.
4. lamps and lanterns test macro according to claim 2, which is characterized in that the initialization module includes data acquisition module
Initialization block unit and Second processing module initialization unit, wherein
The data acquisition module initialization unit, for setting the test frequency acquisition of the data acquisition module to and institute
The noiseless working frequency for stating tested car light is consistent；
The Second processing module initialization unit, for by the etalon optical power data in the Second processing module, standard light
Chromatic number is accordingly and standard point clear zone numeric field data is respectively set to and the noiseless light intensity data of the tested car light, noiseless photochromic
Data and noiseless to light area data consistent.
5. lamps and lanterns test macro according to claim 2, which is characterized in that the data acquisition module includes image data
Acquisition unit, light intensity data acquisition unit and data integral unit, wherein
Described image data acquisition unit extracts institute for acquiring realtime image data, and according to the realtime image data
It states Real-Time Optical chromatic number evidence and described lights area data in real time；Described image data acquisition unit further includes for storing the reality
When image data video memory；
The light intensity data acquisition unit, for acquiring the real-time light intensity data；
The Data Integration unit, for according to the Real-Time Optical chromatic number of synchronization according to, described light area data in real time
Real-time light-emitting data is generated with the real-time light intensity data and is exported to the Second processing module.
6. lamps and lanterns test macro according to claim 5, which is characterized in that the Second processing module includes light intensity processing
Unit, photochromic processing unit and light regional processing unit, wherein
The light intensity processing unit, for extracting the real-time light intensity data and the standard light according to the real-time light-emitting data
Strong comparing filters out abnormal light intensity data, and the anomalous field frequency of synchronization is read according to the abnormal light intensity data
Abnormal image data and corresponding preservation in data, anomalous field intensity data, abnormal luminous data and described image memory；
The photochromic processing unit, for extracting the Real-Time Optical chromatic number evidence and the standard light according to the real-time light-emitting data
Color comparing filters out abnormal photochromic data, and according to the anomalous field frequency of the photochromic reading data synchronization of the exception
Abnormal image data and corresponding preservation in data, anomalous field intensity data, abnormal luminous data and described image memory；
It is described to light regional processing unit, for lighting area data and institute in real time according to the real-time light-emitting data extraction is described
It states standard point bright area comparing and filters out abnormal point clear zone numeric field data, and is same according to the abnormal point bright area reading data
It is different in the anomalous field frequency data at one moment, anomalous field intensity data, abnormal luminous data and described image memory
Normal image data and corresponding preservation.
7. a kind of lamps and lanterns test method, applied to lamps and lanterns test macro described in any claim in the claims 1-6,
For detecting lamp luminescence performance, which is characterized in that comprising steps of
S1, basis is tested noiseless working frequency, noiseless image data and the noiseless light intensity number of lamps and lanterns before the test begins
According to setting test frequency acquisition and standard luminescent data；
S2, one-to-one field frequency data and magnetic field strength date are generated using first processing module；
S3, the electromagnetic field that different frequency and field strength are simulated according to field frequency data and magnetic field strength date, to interfere lamps and lanterns
Luminance；
S4, the realtime image data and real-time light intensity data that disturbed lamps and lanterns are acquired according to the test frequency acquisition, and according to
The realtime image data and the real-time light intensity data generate real-time light-emitting data；
S5, the real-time light-emitting data and the standard luminescent comparing are filtered out into abnormal luminous data, and will be described different
Normal light-emitting data is corresponding with the abnormal image data of synchronization, anomalous field frequency data and anomalous field intensity data to be protected
It deposits；And judge to lead to the critical magnetic field strength data for abnormal luminous data occur under any anomalous field frequency data；
S6, by the abnormal luminous data, the abnormal image data, the anomalous field frequency data and the anomalous field
Intensity data statistics output, obtains the test result of lamps and lanterns.
8. lamps and lanterns test method according to claim 7, which is characterized in that the step S1 includes:
S101, set consistent with the noiseless working frequency of tested car light for the test frequency acquisition of data acquisition module；
S102, by Second processing module the photochromic data of etalon optical power data, standard and standard point clear zone numeric field data distinguish
It is set as and the noiseless light intensity data of tested car light, noiseless photochromic data and noiseless to light area data consistent.
9. lamps and lanterns test method according to claim 7, which is characterized in that the step S4 includes:
S401, acquisition realtime image data extract Real-Time Optical chromatic number evidence and in real time point clear zone according to the realtime image data
Numeric field data, and by realtime image data storage into video memory；
Meanwhile the acquisition real-time light intensity data；
S402, according to the Real-Time Optical chromatic number of synchronization according to, described light area data and the real-time light intensity number in real time
According to the real-time light-emitting data of generation and export to Second processing module.
10. lamps and lanterns test method according to claim 9, which is characterized in that the step S5 includes:
S501, it is filtered out according to the real-time light-emitting data extraction real-time light intensity data with the etalon optical power comparing
Abnormal light intensity data, and it is strong according to the anomalous field frequency data of the abnormal light intensity data reading synchronization, anomalous field
Degree evidence, abnormal luminous data and abnormal image data and corresponding preservation in described image memory；
S502, it is filtered out according to the real-time light-emitting data extraction Real-Time Optical chromatic number according to the photochromic comparing of the standard
Abnormal photochromic data, and it is strong according to the anomalous field frequency data of the photochromic reading data synchronization of the exception, anomalous field
Degree evidence, abnormal luminous data and abnormal image data and corresponding preservation in described image memory；
S503, area data and standard point clear zone numeric field data ratio are lighted in real time according to the real-time light-emitting data extraction is described
To filtering out abnormal point clear zone numeric field data, and according to the anomalous field frequency of the abnormal point bright area reading data synchronization
Abnormal image data and corresponding preservation in data, anomalous field intensity data, abnormal luminous data and described image memory；
S504, selection generate changing magnetic field intensity data under any anomalous field frequency data, and by selected exception
Field frequency data and the changing magnetic field intensity data are exported to environmental simulation module and Second processing module, so that described
Second processing module is judged to lead to the critical magnetic field for abnormal luminous data occur under selected anomalous field frequency data
Intensity data.
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| CN113759192A (en) * | 2021-07-29 | 2021-12-07 | 江铃汽车股份有限公司 | EMC test method and device, readable storage medium and vehicle |
| CN115840159A (en) * | 2022-09-19 | 2023-03-24 | 大庆恒驰电气有限公司 | Intelligent robot |
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