CN102103015B - Method for dynamically measuring illumination spot of LED road - Google Patents
Method for dynamically measuring illumination spot of LED road Download PDFInfo
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- CN102103015B CN102103015B CN200910113095A CN200910113095A CN102103015B CN 102103015 B CN102103015 B CN 102103015B CN 200910113095 A CN200910113095 A CN 200910113095A CN 200910113095 A CN200910113095 A CN 200910113095A CN 102103015 B CN102103015 B CN 102103015B
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Abstract
The invention discloses a method for dynamically measuring an illumination spot of an LED road, which comprises the following steps of: firstly, taking a vehicle road illumination spot measuring system as a test device, selecting the road section between two lamps in the same row as a measuring area, and starting to measure the path when a vehicle of the vehicle road illumination spot measuring system is at a position which is 86 meters away from the first lamp in the measuring area; stimulating the road conditions observed by eyes of people in a driving state in running path of the vehicle, and rapidly and conveniently collecting the spot data such as brightness, glare, illumination and chromaticity and the like of the LED road illumination spot. Therefore, the results calculated according to the spot data are more comprehensive and objective; various spot data can be sampled under the same test conditions at the same time; it is unnecessary to block the road during the measurement; and the method has higher operability.
Description
Technical field
The present invention relates to the on-the-spot dynamic measurement method of a kind of LED road lighting.
Background technology
The in-site measurement of LED road or tunnel illumination mainly is in order to gather field datas such as brightness, uniformity of illuminance, dazzle and environment compare at present.To the collection and the processing procedure of field data, mostly according to definition to those data.
Described luminous flux φ: refer to the amount that derives from radiation flux φ v, this amount be according to radiation to the standard luminosity observer of International Commission on Illumination's (being called for short CIE) be used for estimate.
For photopic vision: φ v=Km ∫
0 ∞D φ v (λ)/d λ V (λ) d λ
Φ
In the formula: d φ v (λ)/d λ is the spectral distribution of radiation flux, and V (λ) is a spectral luminous efficiency.
Described luminous intensity Iv; I (light source assigned direction): refer to leave the luminous flux d φ v that propagates in the d Ω of solid angle unit that is comprising assigned direction of light source: formula Iv=d φ v/d Ω.
Described (light) brightness Lv; L: (actual or imaginary lip-deep set point on assigned direction): by the amount of formula Lv=d φ v/dA cos θ d Ω definition.
D φ v is the luminous flux of in comprising the solid angle d Ω of assigned direction, propagating through the light source of set point in the formula; DA is the area of section that comprises this light beam of set point; Θ is the angle between cross section normal and the radiation beam direction.
Described illumination E; Ev: refer to project luminous flux d φ v on the bin that comprises this point divided by this bin area dA, formula Ev=d φ v/dA.
Described road surface mean flow rate Lav: refer to the regulation of (being called for short CIE), the mean value of each point brightness that record or that calculate on predefined point on the road surface according to International Commission on Illumination.Formula Lav=∑ Li/n.
The total uniformity coefficient Uo of described road surface brightness: the ratio of minimum brightness and mean flow rate on the face that shows the way, formula Uo=Lmin/Lav.
The vertical uniformity coefficient U of described road surface brightness
L: refer to the ratio of minimum brightness and high-high brightness on same the track center line, formula UL=Lmin/Lmax.
Described road surface average illumination Eav: refer to the regulation of (being called for short CIE), the mean value of each point illumination that record or that calculate on predefined point on the road surface, formula Eav=∑ Ei/n according to International Commission on Illumination.
Described road illumination uniformity coefficient Ue: the ratio of minimal illumination and average illumination on the face that shows the way, formula Ue=Emin/Eav.
Mean flow rate (illumination) is kept on described road surface, i.e. road surface mean flow rate (illumination) value of keeping: mean flow rate (illumination) value that decay and the light fixture that refers to luminous flux when counting the light source programmed replacement adopted when causing factor (optical loss coefficient) back such as decrease in efficiency designing and calculating because of pollution.
Described dazzle: refer to because Luminance Distribution or the brightness range in the visual field suitable, or have extreme contrast, so that cause uncomfortable sensation or reduce the visual phenomenon of the thin portion of object observing ability.
Described disability glare: refer to reduce the visual object visibility but harmful light of not necessarily producing uncomfortable sensation.
Described threshold value increment (TI) is the tolerance of disability glare, when referring to exist the dazzle source, in order to reach the purpose of seeing object equally clearly, the number percent of the required increase of brightness contrast between object and background thereof.
Described non-comfort glare (G): refer to influence driver's euphorosia degree but not necessarily produce to reduce harmful light of visual object visibility; Available dazzle controlling grade (G) is weighed.
Described environment is than (SR): the ratio that refers to average level illumination on average level illumination and the wide driveway of adjacent 5m in the wide zone of 5m, driveway outside.
Described lighting power density: refer to the illumination total consumed power (power consumption that comprises power supply, cable etc.) on the unit road area.
Described axis of reference: refer to through LED street lamp luminous actinal surface center and the axis vertical with luminous actinal surface.
Described luminosity center: refer to the axis of reference of LED street lamp and the intersection point of luminous actinal surface.
Described asessory shaft: refer to that axis of reference and asessory shaft have determined C0 °/C180 ° plane.
Described the 3rd: refer to that axis of reference and the 3rd have determined C90 °/C270 ° plane.
Point under the described lamp: refer to the point under the LED street lamp, usually on axis of reference.
Described measure attitude: refer to the placement attitude of LED street lamp when measuring.
Described canonical measure attitude: refer to the luminous actinal surface maintenance level of LED street lamp and luminous downwards, axis of reference vertically downward, and C90 ° of plane be in the roadside, C270 ° of plane is in the limit, room, C0 °/C180 ° and road axially parallel.
Described colour rendering index, general colour rendering index: the numerical value that refers to represent the color rendering properties of light source height.Be the tolerance of object color and the degree that conforms to reference to object color under the light source irradiation under light source irradiation.CIE regulation blackbody radiation body is with reference to light source, and its colour rendering index is decided to be 100; CIE has also stipulated 8 samples of colour as contrasting sample, and the colour rendering index average that obtains with this sample test is called general colour rendering index (Ra).
Described colour temperature, colour temperature: the temperature of Planckian radiator when the chromaticity that refers to the Planckian radiator radiation is identical with the chromaticity of given colour stimulus is the colour temperature of this colour stimulus.
Described correlated colour temperature Tc: refer to that under the observation condition of identical apparent brightness and regulation the consciousness look of Planckian radiator radiation and the consciousness look of given colour stimulus are when similar, the temperature of Planckian radiator is the correlated colour temperature of this colour stimulus.
Usually the on-the-spot test project of LED road lighting comprises:
1, photometric measurement: road surface mean flow rate Lav, the total uniformity coefficient Uo of road surface brightness, the vertical uniformity coefficient UL of road surface brightness, road surface average illumination Eav, road illumination uniformity coefficient Ue, environment compare SR;
2, colour measurement: the lighting source chromaticity coordinates (x, y), general color index Ra, correlated colour temperature Tc;
3, dazzle is measured: the threshold value increment TI of disability glare, non-comfort glare controlling grade G;
4, efficiency is measured: lighting power density LPD.
At present; Different field datas adopt the mode of gathering separately usually in the on-the-spot test project to above-mentioned LED road lighting, promptly use different instrument and equipments that corresponding field data is repeatedly sampled successively, and such metering system is not only loaded down with trivial details, measure difficulty, dyscalculia and need to block road; Artificial bigger with the method cost; And all field datas of can't under identical test condition, sampling simultaneously, especially can't imitate human eye and under driving condition, observe the road surface, can't imitate the running car path on-the-spot kinetic measurement is carried out in road lighting; Make test result have serious deviation, lack the reference significance of reality.
Summary of the invention
In order to address the above problem; But fundamental purpose of the present invention is to provide in a kind of simulated automotive driving path; Human eye observed pavement conditions under driving condition; To the method that on-the-spot kinetic measurement is carried out in the LED road lighting, mainly gather field datas such as brightness, luminance uniformity, uniformity of illuminance, dazzle and colourity.
The on-the-spot dynamic measurement method of a kind of LED road lighting of the present invention mainly comprises following step:
Step 1, vehicle mounted road is thrown light on the in-site measurement system as testing apparatus
Described vehicle mounted road illumination in-site measurement system is installing hyperchannel brightness acquisition system, hyperchannel illumination acquisition system, dazzle detection system, road reflection characteristic tester, spectrum colourity test macro and range observation and a positioning system on vehicle;
But the installing of described hyperchannel brightness acquisition system and dazzle detection system one or same position, the synchronization implementation data acquisition, wherein the optical axis of the optical receiver of hyperchannel brightness acquisition system apart from ground 1.5 meters high and 1 ° of angle of cut of parallel downward one-tenth with the road surface;
The light probe light-sensitive surface built on stilts of illuminometer is no more than 200 millimeters in the described hyperchannel illumination acquisition system;
The light receiving surface of the optical receiver in the described spectrum colourity test macro upwards places horizontal level, can be installed in the optional position of vehicle body and roof;
The light receiving surface of the optical receiver of described road reflection characteristic tester is towards the road surface;
Described range observation and positioning system position current measuring position;
Step 2, the selection of measuring the highway section
Selecting the highway section between two light fixtures of same row is measured zone, and the position of vehicle first street lamp 86M in the range observation zone of vehicle mounted road illumination in-site measurement system begins to measure route;
The sampling of step 3, field data
(1) brightness and dazzle measurement point sampling: this hyperchannel brightness acquisition system and dazzle detection system begin image data simultaneously in the position of range observation zone first street lamp 86M; Until covering whole measurement zone; Adopt the mode of continuous sweep vertically to take a sample, and be positioned at each track center line and laterally take a sample;
(2) illumination photometry point sampling: through hyperchannel illumination acquisition system image data in measurement zone, adopt the mode of continuous sweep vertically to take a sample, and be positioned at each track center line and laterally take a sample;
(3) colour measurement point sampling: get point under the street lamp, sample through spectrum colourity test macro.
The on-the-spot illumination measurement equipment of the present invention through on vehicle, installing; Human eye observed pavement conditions under driving condition in the simulated automotive driving path; To the on-the-spot various field datas such as luminosity and colourity that relate to of LED road lighting; Carry out fast, gather easily, make more comprehensive and objective according to the result of calculation of this field data.Because vehicle mounted road illumination in-site measurement system is automatic collection site data in driving path, therefore, the various field datas of can under identical test condition, sampling simultaneously needn't be blocked road during measurement, have stronger operability.
Description of drawings
Fig. 1 is a measurement of the present invention highway section synoptic diagram;
Fig. 2 is a vehicle mounted road illumination in-site measurement system schematic of the present invention;
Fig. 3 is the on-the-spot instrumentation plan of road lighting of the present invention.
Below in conjunction with accompanying drawing and specific embodiment the present invention is made further detailed description.
Embodiment
The on-the-spot dynamic measurement method of a kind of LED road lighting of the present invention mainly comprises following step:
Step 1, vehicle mounted road is thrown light on the in-site measurement system as the testing apparatus (see figure 2);
Described vehicle mounted road illumination in-site measurement system is installing hyperchannel brightness acquisition system 1, hyperchannel illumination acquisition system 2, dazzle detection system 3, road reflection characteristic tester 4, spectrum colourity test macro 5 and range observation and a positioning system 6 on vehicle.
But described hyperchannel brightness acquisition system 1 and dazzle detection system 3 one or same position installing, the synchronization implementation data acquisition, wherein the optical axis of the optical receiver of hyperchannel brightness acquisition system 1 apart from ground 1.5 meters high and 1 ° of angle of cut of parallel downward one-tenth with the road surface;
The light probe light-sensitive surface built on stilts of illuminometer is no more than 200 millimeters in the described hyperchannel illumination acquisition system 2;
The light receiving surface of the optical receiver in the described spectrum colourity test macro 5 upwards places horizontal level, can be installed in the optional position of vehicle body and roof;
The light receiving surface of the optical receiver of described road reflection characteristic tester 4 is towards the road surface;
6 pairs of current measuring positions of described range observation and positioning system position, and for habit has technology, can be the gps satellite positioning systems, and perhaps, the distance data of going through collection vehicle are converted into distance value.
Step 2, the selection (seeing Fig. 1 and Fig. 3) of measuring the highway section;
Be chosen in the spacing of light fixture, highly, encorbelment, the aspect such as photochromic of the elevation angle and light source has the flat road surface of typicalness; Forthright vertically on, measured zone should be between two light fixtures of same row, like the zone that dotted line between street lamp L3 among Fig. 3 and the street lamp L2 is represented, wherein first street lamp L2 is at observer's (being vehicle mounted road illumination in-site measurement system) the place ahead 86M place; As shown in Figure 2, the vehicle of this vehicle mounted road illumination in-site measurement system is that the position of first street lamp 86M in the range observation zone begins to measure route.
The sampling of step 3, field data;
(1) brightness and dazzle measurement point sampling: this hyperchannel brightness acquisition system 1 begins image data simultaneously with dazzle detection system 3 86M place before measurement zone; Until covering whole measurement zone; Adopt the mode (step-length look require and different) of continuous sweep vertically to take a sample, and be positioned at each track center line and laterally take a sample.When measuring road surface brightness and tunnel illumination brightness; If the light receiving surface position of hyperchannel brightness acquisition system 1 optical receiver is parallel to the direction on road surface all the time; Just mean the observer when measuring all the time on the vertical line at measurement point, such test result should be indicated as " moving the brightness uniformity that the observer observes ".
(2) illumination photometry point sampling: through hyperchannel illumination acquisition system 2 image data in measurement zone, adopt the mode (step-length look require and different) of continuous sweep vertically to take a sample, and be positioned at each track center line and laterally take a sample.
(3) colour measurement point sampling: get point under the street lamp, sample through spectrum colourity test macro 5.
Described disability glare is examined with the threshold value increment
Threshold value increment (TI) calculates through following formula
Wherein: K is the constant with observer's change of age, gets K=650 (being equivalent to observer's age is 23 years old), can calculate through following formula if any specific (special) requirements:
A is observer's age (year).
Ee: be meant the total illumination that new lamp produces on the plane of observer's eye pupil place perpendicular to direction of visual lines; It is high that human eye should be positioned at apart from the road surface 1.5m, laterally is positioned at apart from WL/4 place, edge, track, vertically locates for measured zone front distance 2.75 (H-1.5), and wherein H is setting height(from bottom) (m), and sight line is got in the vertical plane, under the optical axis direction from the horizontal by 1 ° of direction.
Lav: the initial mean flow rate that is the road surface.
Θ: be the angle at sight line and the light fixture center that produces dazzle, unit is degree.
This formula is set up during in 0.05cd/m2＜Lav＜5cd/m2 and 1.5 °＜θ＜60 °.
Of the present invention focusing on: select for use vehicle mounted road illumination in-site measurement system as testing apparatus; Harvester with various field datas; According to the condition and the requirement on human eye observed road surface under driving condition in the simulated automotive driving path, be installed on the vehicle and the collection site data.
Claims (1)
1. the on-the-spot dynamic measurement method of a LED road lighting is characterized in that mainly comprising following step:
Step 1, vehicle mounted road is thrown light on the in-site measurement system as testing apparatus
Described vehicle mounted road illumination in-site measurement system is installing hyperchannel brightness acquisition system, hyperchannel illumination acquisition system, dazzle detection system, road reflection characteristic tester, spectrum colourity test macro and range observation and a positioning system on vehicle;
The installing of described hyperchannel brightness acquisition system and dazzle detection system one or same position, the synchronization implementation data acquisition, wherein the optical axis of the optical receiver of hyperchannel brightness acquisition system apart from ground 1.5 meters high and 1 ° of angle of cut of parallel downward one-tenth with the road surface;
The light probe light-sensitive surface built on stilts of illuminometer is no more than 200 millimeters in the described hyperchannel illumination acquisition system;
The light receiving surface of the optical receiver in the described spectrum colourity test macro upwards places horizontal level, is installed in the optional position of vehicle body and roof;
The light receiving surface of the optical receiver of described road reflection characteristic tester is towards the road surface;
Described range observation and positioning system position current measuring position;
Step 2, the selection of measuring the highway section
Select highway section between two light fixtures of same row as measured zone, the position of vehicle first street lamp 86M in the range observation zone of vehicle mounted road illumination in-site measurement system begins to measure route;
The sampling of step 3, field data
(1) brightness and dazzle measurement point sampling: this hyperchannel brightness acquisition system and dazzle detection system begin image data simultaneously in the position of range observation zone first street lamp 86M; Until covering whole measurement zone; Adopt the mode of continuous sweep vertically to take a sample, and be positioned at each track center line and laterally take a sample;
(2) illumination photometry point sampling: through hyperchannel illumination acquisition system image data in measurement zone, adopt the mode of continuous sweep vertically to take a sample, and be positioned at each track center line and laterally take a sample;
(3) colour measurement point sampling: get point under the street lamp, sample through spectrum colourity test macro.
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Families Citing this family (17)
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| CN102359864A (en) * | 2011-07-18 | 2012-02-22 | 中国计量学院 | Luminous environment device for evaluating projection of high-luminance large screen with glaring light source |
| JP5742753B2 (en) * | 2012-03-06 | 2015-07-01 | 岩崎電気株式会社 | Luminance measuring device |
| CN103543002A (en) * | 2012-07-17 | 2014-01-29 | 中国科学院西安光学精密机械研究所 | Overall performance field test system for LED streetlamps |
| CN203502111U (en) * | 2013-09-18 | 2014-03-26 | 重庆交通大学 | Road illumination quality detection device |
| CN103528801B (en) * | 2013-10-24 | 2016-04-06 | 浙江农林大学 | LED lamp type unified glare value optical measuring device |
| CN104266823B (en) * | 2014-10-26 | 2018-06-05 | 北京工业大学 | Based on safety depending on the tunnel portal section lighting criteria measuring method and its system on daytime recognized |
| CN104533441B (en) * | 2014-10-26 | 2017-01-11 | 北京工业大学 | Standard measuring and calculating method and system based on safety visibility for lighting of entrance section of tunnel at night |
| CN104316171B (en) * | 2014-10-26 | 2016-06-15 | 北京工业大学 | Based on safety depending on the tunnel interlude standard of illumination measuring method recognized and system thereof |
| CN104390698A (en) * | 2014-11-20 | 2015-03-04 | 厦门元谷信息科技有限公司 | Preposed measuring device for dynamically testing road illumination on-site |
| CN104484563B (en) * | 2014-12-11 | 2018-07-31 | 厦门元谷节能环保集团有限公司 | A method of dynamic evaluation being carried out to road lighting dazzle using imaging brightness meter |
| CN106454147B (en) * | 2016-10-25 | 2019-06-11 | 浙江宇视科技有限公司 | Image Acquisition light compensation method and device |
| CN106767779A (en) * | 2016-11-25 | 2017-05-31 | 重庆市计量质量检测研究院 | A kind of illumination intensity for road illumination self-operated measuring unit and measuring method |
| CN106679804B (en) * | 2016-12-09 | 2022-03-29 | 上海航空电器有限公司 | Portable modular luminance and chrominance detection method |
| CN107796598B (en) * | 2017-09-19 | 2019-11-19 | 厦门元谷节能环保集团有限公司 | The method for drafting in survey calculation region in the visual field of road lighting scene dynamic measurement |
| CN107527490A (en) * | 2017-09-29 | 2017-12-29 | 北京市市政工程设计研究总院有限公司 | Intensity of illumination measuring system in vehicle-mounted tunnel based on OBD |
| CN113498238B (en) * | 2020-04-07 | 2023-12-05 | 合肥工业大学 | Tunnel illumination detection system and method |
| CN112393885B (en) * | 2020-11-30 | 2023-08-04 | 宁波市奉化浩轩光电有限公司 | LED lighting system for automobile headlight and detection method of LED lighting system |
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Address after: 1F-C1 361000 in Fujian Province, Xiamen torch hi tech Zone Software Park Alltronics floor C District Patentee after: Xiamen Yuangu energy conservation and Environmental Protection Group Co. Ltd. Address before: 1F-C1 361000 in Fujian Province, Xiamen torch hi tech Zone Software Park Alltronics floor C District Patentee before: Xiamen Yuangu Information Technology Co., Ltd. |