CN100453996C - Method for detecting light intensity of main-beam light by non main light axle illuminancy - Google Patents
Method for detecting light intensity of main-beam light by non main light axle illuminancy Download PDFInfo
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- CN100453996C CN100453996C CNB2005100858244A CN200510085824A CN100453996C CN 100453996 C CN100453996 C CN 100453996C CN B2005100858244 A CNB2005100858244 A CN B2005100858244A CN 200510085824 A CN200510085824 A CN 200510085824A CN 100453996 C CN100453996 C CN 100453996C
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Abstract
Tests to far-beam lights of various in-use vehicles are used for analyzing that the light intensity dispersion of near-distance main light axles of various far-beam lights is large, and errors of detecting the light intensity of far light by the main light axles in the prior art are large. The present invention provides a method for detecting light intensity of far-beam lights by non main light axle illuminancy. Multipoint detecting values which deviate from the center of a main light axle by a certain distance are superposed. Consequently, the light intensity of the far-beam lights of various vehicles can be accurately detected in a near distance.
Description
Technical field
Method for detecting light intensity of main-beam light by non main light axle illuminancy is a detector closely with non-primary optical axis illumination dazzle light being carried out a kind of method that light intensity detects, and belongs to automotive performance detection method technical field.
Background technology
The present long-distance light light intensity of China detects, and is to detect the distance light light intensity with primary optical axis illumination, the demarcation of GB regulation distance light calibrating device, be equal greater than 7 meters apart from the time, measure primary optical axis illumination and demarcate light intensity by the pointolite formula.With the high beam light intensity of car, normally 10 meters apart from the time, measure primary optical axis illumination and determine light intensity, in actual detected, normally at closely 3 meters or 1 meter etc., with detector detection distance light light intensity by the pointolite formula.Test shows: identical light intensity with the primary optical axis illumination of car various high beams closely discrete very big, and near regulation detects closely, the rate of change of the primary optical axis illumination relative distance of high beam is bigger, closely missing by a mile thereby cause with primary optical axis luminance detection distance light light intensity, the present invention adopts non-primary optical axis illumination to detect light intensity, thereby improves the closely accuracy of detection of dazzle light light intensity greatly.
Summary of the invention
1, various dazzle lights are primary optical axis illumination discrete very big closely, referring to curve among Figure of description Fig. 21 and curve 2, by different scattered lights the primary optical axis intersection is caused, and departing from the light of primary optical axis center than far point, be subjected to the influence of scattered light less, referring to Figure of description Fig. 1, after departing from primary optical axis center certain distance, the illumination change of each point is very mild, the influence that scattered light is described is less, and, illumination and distance Curve rate of change at these points also reduce greatly, so, at the each point that departs from primary optical axis center certain distance, not only the various high beams of identical light intensity are discrete less in the illumination that closely detects, and illumination and distance Curve are also milder, the various high beams of identical light intensity have good convergence at in-plant illumination curve, referring to curve among Figure of description Fig. 23 and curve 4.
2, peripheral sampling detects light intensity on preposition light receiving plate, on photoelectric cell formula detector, can shield outermost peripheral in photometry and place a plurality of photoelectric cells, and after photometry screen center and high beam beam center centering, a plurality of photronic electric signal of superposition detect light intensity; On the CCD detector, can carry out superposition to the peripheral each point briliancy of captured centering image and detect light intensity.
3, the demarcation mode of detector, adopt relative method, its principle is: at the regulation each point that departs from primary optical axis center certain distance, because the influence of scattered light is very little, the various high beams of identical light intensity, comprise and demarcate used distance light calibrating device, in similar detection closely, less in the discreteness of these regulation each point detected parameters superposition sums.Can demarcate by the mode of existing GB requirement, only primary optical axis made into non-primary optical axis.
Description of drawings
Figure of description Fig. 1 is full light beam illumination curve figure, and A is the primary optical axis center, and after the off-center distance was greater than 2 of B, C, illumination curve changed very mild, is subjected to the influence of scattered light less.Figure of description Fig. 2 is the curve of identical light intensity high beam illumination and distance, and curve 1 and curve 2 are respectively minimum and maximum illumination of primary optical axis and distance Curve, and curve 3 and curve 4 are respectively minimum and maximum illumination of non-primary optical axis and distance Curve.Obviously curve 1,2 is discrete very big, and curve 3,4 has good convergence.
Embodiment
1, the dazzle light of 12 new different models, be numbered respectively 1～No. 12, wherein No. 2 and No. 6 is imported auto high beam (hollow lamp), tests under the dark place screen condition.
2, each numbering high beam is installed in power supply respectively on the adjustable 12V stabilized voltage supply of ± 1% precision.During measurement, earlier each numbering high beam is placed on screen on 10 meters of illuminometer sensor distance, after manually the illuminometer sensor scan searches out maximal illumination point, fixation of sensor is motionless, adjust the voltage of adjustable stabilized voltage supply, when illuminometer respectively when steady display 100LX, 200LX, promptly respectively number the high beam light intensity when being respectively 10000cd, 20000cd, write down its corresponding voltage value respectively.
3, each numbering high beam is placed on high illuminometer sensor distance and is respectively 3 meters and 1 meter, after manually the illuminometer sensor scan searches out maximal illumination point, fixation of sensor is motionless, adjust voltage and be stabilized in the magnitude of voltage that is write down, promptly adjust the corresponding light intensity of high beam at 10 meters, measure 3 meters and 1 meter apart from the time corresponding illumination.Thereby obtain the curve 1 and the curve 2 of the minimum and maximum illumination of primary optical axis.
4, respectively at 3 meters and 1 meter, deviate on the predetermined distance point, carry out illumination photometry under the identical light intensity, can get curve 3 and curve 4 at the maximal illumination point.
5, embodiment:
The present used full-automatic high beam detector of China's vehicle inspection and test station is 3 meters and measures high beam primary optical axis illumination apart from the photoelectric cell formula and detect light intensity.Full-automatic high beam detector detects data to 12 high beam light intensity and sees table, and it is qualified before the test full-automatic high beam detector to be demarcated with the distance light calibrating device.
| Numbering | V1 | I1 | δ1％ | V2 | I2 | δ2％ |
| 1 | 8.48 | 10100 | 1.0％ | 10.42 | 20300 | 1.5％ |
| 2 | 9.32 | 5200 | -48.0％ | 11.53 | 10100 | -49.5％ |
| 3 | 10.03 | 12200 | 22.0％ | 12.49 | 24900 | 24.5％ |
| 4 | 6.68 | 9400 | -6.0％ | 8.16 | 19400 | -3.0％ |
| 5 | 9.53 | 14600 | 46.0％ | 11.67 | 30500 | 52.5％ |
| 6 | 7.63 | 3200 | -68.0％ | 9.37 | 6800 | -66.0％ |
| 7 | 10.48 | 10400 | 4.0％ | 13.00 | 21900 | 9.5％ |
| 8 | 10.25 | 8200 | -18.0％ | 12.29 | 17100 | -14.5％ |
| 9 | 9.50 | 10900 | 9.0％ | 11.53 | 22500 | 12.5％ |
| 10 | 7.94 | 13300 | 33.0％ | 9.60 | 26800 | 34.0％ |
| 11 | 8.46 | 13700 | 37.0％ | 10.17 | 27200 | 36.0％ |
| 12 | 9.31 | 7800 | -22.0％ | 11.34 | 15400 | -23.0％ |
V1, V2---each numbers the operating voltage V of high beam nominal light intensity when being respectively 10000cd, 20000cd
I1, I2---each numbers the detection light intensity of high beam nominal light intensity detector when being respectively 10000cd, 20000cd
δ---light intensity error, δ=[(detecting light intensity-nominal light intensity)]/nominal light intensity * 100
As seen from the above table: the full-automatic high beam detector of currently used 3 meters distances is bigger to detecting error in the light intensity with high beam, is caused by detecting principle and structure imperfection.
Improve and test by non-primary optical axis luminance detection light intensity, place several photoelectric cells in photometry screen outermost peripheral, after photometry screen center and high beam beam center centering, each photronic electric signal of superposition detects light intensity.12 high beam light intensity are detected data to be seen table.
| Numbering | V1 | I1 | δ1％ | V2 | I2 | δ2％ |
| 1 | 8.48 | 9400 | -6.0％ | 10.42 | 18400 | -8.0％ |
| 2 | 9.32 | 9300 | -7.0％ | 10.53 | 19500 | -2.5％ |
| 3 | 10.03 | 11100 | 11.0％ | 12.49 | 21400 | 7.0％ |
| 4 | 6.68 | 10800 | 8.0％ | 8.16 | 20700 | 3.5％ |
| 5 | 9.53 | 12100 | 21.0％ | 11.67 | 23500 | 17.5％ |
| 6 | 7.63 | 9600 | -4.0％ | 9.37 | 18900 | -5.5％ |
| 7 | 10.48 | 10300 | 3.0％ | 13.00 | 21000 | 5.0％ |
| 8 | 10.25 | 10800 | 8.0％ | 12.29 | 21100 | 5.5％ |
| 9 | 9.50 | 10500 | 5.0％ | 11.53 | 20300 | 1.5％ |
| 10 | 7.94 | 11800 | 18.0％ | 9.60 | 23200 | 16.0％ |
| 11 | 8.46 | 10300 | 3.0％ | 10.17 | 21800 | 9.0％ |
| 12 | 9.31 | 9600 | -4.0％ | 11.34 | 18700 | -6.5％ |
By non-primary optical axis luminance detection light intensity method, to detector improve and perfect effect fairly obvious, its maximum error 21.0% is 28.0% with the difference of least error-7.0%, as long as demarcate proper, then 12 strong composition errors of high beam institute photometry can be controlled at that GB requires ± 15% scope in.
Method for detecting light intensity of main-beam light by non main light axle illuminancy when closely detecting, detects for the discrete very large various high beam light intensity of primary optical axis illumination, has the little advantage of the error of detection.
Claims (1)
1, a kind of method for detecting light intensity of main-beam light by non main light axle illuminancy, be that detector is 3 meters or 1 meter method that the detection distance detects the dazzle light light intensity, it is characterized in that: get up to detect light intensity departing from primary optical axis center illumination or the detected parameters superposition measured than far point light, on photoelectric cell formula detector, place a plurality of photoelectric cells in photometry screen outermost peripheral, after photometry screen center and high beam beam center centering, a plurality of photronic electric signal of superposition detect light intensity; On the CCD detector, the peripheral each point briliancy of captured centering image is carried out superposition detect light intensity.
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| CNB2005100858244A CN100453996C (en) | 2005-07-14 | 2005-07-14 | Method for detecting light intensity of main-beam light by non main light axle illuminancy |
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| CNB2005100858244A CN100453996C (en) | 2005-07-14 | 2005-07-14 | Method for detecting light intensity of main-beam light by non main light axle illuminancy |
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| CN100453996C true CN100453996C (en) | 2009-01-21 |
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| CNB2005100858244A Expired - Fee Related CN100453996C (en) | 2005-07-14 | 2005-07-14 | Method for detecting light intensity of main-beam light by non main light axle illuminancy |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101556208B (en) * | 2008-04-10 | 2010-12-15 | 天津圣纳科技有限公司 | Intelligent lighting automatic detection and analysis system and detection method thereof |
| CN108510755A (en) * | 2017-03-07 | 2018-09-07 | 詹水旺 | A kind of method of automatic identification Misuse dazzle light |
| CN111044267B (en) * | 2019-12-28 | 2021-09-21 | 佛山市华控电机科技有限公司 | High beam calibrator calibration device and method for headlamp detector |
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| CN2046456U (en) * | 1988-11-16 | 1989-10-25 | 王银明 | Headlight light detecting device for motor vehicle |
| CN1015576B (en) * | 1987-08-19 | 1992-02-19 | 索尼公司 | Tape dubbing apparatus |
| CN2610318Y (en) * | 2003-03-11 | 2004-04-07 | 庞建梁 | Post photoelectric scanning plate of testing instrument for vehicle head-light |
| CN1584538A (en) * | 2004-06-06 | 2005-02-23 | 吴明 | Detection and correction for distancing light and detector relative position |
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2005
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1015576B (en) * | 1987-08-19 | 1992-02-19 | 索尼公司 | Tape dubbing apparatus |
| CN2046456U (en) * | 1988-11-16 | 1989-10-25 | 王银明 | Headlight light detecting device for motor vehicle |
| CN2610318Y (en) * | 2003-03-11 | 2004-04-07 | 庞建梁 | Post photoelectric scanning plate of testing instrument for vehicle head-light |
| CN1584538A (en) * | 2004-06-06 | 2005-02-23 | 吴明 | Detection and correction for distancing light and detector relative position |
Non-Patent Citations (6)
| Title |
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| 汽车前照灯检测仪试验分析. 吴明.公路与汽运，第3(总108)期. 2005 |
| 汽车前照灯检测仪试验分析. 吴明.公路与汽运，第3(总108)期. 2005 * |
| 汽车前照灯远光强度实验室(暗室)测量与校正仪测量结果差异分析. 秦玉根.上海汽车，第3期. 1994 |
| 汽车前照灯远光强度实验室(暗室)测量与校正仪测量结果差异分析. 秦玉根.上海汽车，第3期. 1994 * |
| 汽车远光灯光强和照度实验分析. 吴明.公路与汽运，第2(总107)期. 2005 |
| 汽车远光灯光强和照度实验分析. 吴明.公路与汽运，第2(总107)期. 2005 * |
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