CN102798065A - Low-lamp-position multi-dimensional road lighting system - Google Patents
Low-lamp-position multi-dimensional road lighting system Download PDFInfo
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- CN102798065A CN102798065A CN201210334282XA CN201210334282A CN102798065A CN 102798065 A CN102798065 A CN 102798065A CN 201210334282X A CN201210334282X A CN 201210334282XA CN 201210334282 A CN201210334282 A CN 201210334282A CN 102798065 A CN102798065 A CN 102798065A
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Abstract
The invention provides a low-lamp-position multi-dimensional road lighting system which comprises multiple dimensions of lighting components, including a backward lighting component, a forward lighting component, a transverse lighting component and a vertical lighting component. The lighting function, the photochromic range, the irradiation direction and the irradiation space of each lighting component are respectively independent and can be adjusted independently. According to the task nature, each component is provided with independently operating special light source and lamp installed at low position. The low-lamp-position multi-dimensional road lighting system respectively undertakes the tasks of road surface lighting, space lighting, complex weather lighting and guidance lighting tasks. In each task, the efficiency of the low-lamp-position multi-dimensional road lighting system is maximized, and the overall lighting reaches comprehensively optimal. The invention overcomes the defects of the traditional high-lamp-position lighting system and the traditional low-lamp-position lighting system, so that the light sources and the lamps with different purposes perform own duties, the problems of glare, ineffective lighting, poor longitudinal uniformity degree and the like are effectively solved, and the lighting efficiency is greatly improved. The low-lamp-position multi-dimensional road lighting system is autonomously applied and researched based on the characteristics of a small-power high-light-efficiency light source per se, the lighting system of the traditional projection lamp is radically discarded, and the mode of simply replacing the HPS (High Pressure Sodium) lamp with an LED lamp is also discarded.
Description
Technical field
The present invention is inventor's series invention---the first of " multidimensional road lighting system ", relates to a kind of new road lighting system, specifically is a kind of low lamp position multidimensional road lighting mode.
Background technology
At present, through street and the highway general lighting system of throwing light on is to adopt high lamp position street lamp, and light source is HPS, and about setting height(from bottom) 10m, about installing space 30m, about single lamp power 250W, this lighting system constitutes present main flow lighting system.This lighting system technology maturation, but because the lamp position is high, single lamp power is big, has following problem:
1, glare problem
The road Lighting Design code requirement adopts and cuts light, half light chopping street lamp reduces dazzle.This measure can limit dazzle but can't eliminate dazzle.The reason that produces dazzle is: with light chopping light fixture (comprising HPS lamp and LED lamp) is example, and the main illuminated portion of its light path does not project in the automobile driver eye, and in this sense, the light chopping light fixture has been avoided direct glare basically.But; Always there is a light-emitting area that brightness is very high in this type light fixture; Owing to have height difference H between this light-emitting area and the driver, then always exist visual angle α to make the driver can look at this light-emitting area straight, feel dazzle (seeing accompanying drawing 1) from the street lamp light-emitting area of front upper place.This dazzle is not traditional direct glare, but still belongs to disability glare.
The adequate condition that this dazzle exists is: α＞0.
Change α greater than 0, two kinds of measures are arranged.The first tilt to be placed light fixture, and the light-emitting area that makes light fixture and driver are 0 to the sight line of front upper place parallel (seeing accompanying drawing 2) thereby make the α angle.But the size at motor vehicle α angle when motion is changing the dazzle of the vehicle of diverse location so this method can't be eliminated this driving direction constantly; Simultaneously, " light-emitting area " of this inclination can shine the opposite direction of traffic, strengthened the dazzle of opposite direction of traffic on the contrary, and be therefore inadvisable.
Another kind of measure is to reduce the street lamp height, and when street lamp height and driver's eye are high when identical, making the α angle is 0.But this can bring a series of problems such as luminous intensity distribution, and it obviously is infeasible particularly existing 250W-400W HPS street lamp height being reduced to driver's eye height.
Therefore, adopt the road of high lamp position lighting system all to have to come the disability glare of bicycle directional front upper place.
(2) invalid lighting problem
For improving uniformity of illuminance, high lamp position lighting system as far as possible evenly illuminates the following space of light source, forms the light curtain district shown in accompanying drawing 3.
For the through street of sealing, automobile driver only need be observed road surface and road the place ahead situation and not need to observe simultaneously the inside and outside target conditions of road.Therefore; Road lighting does not need the top, road surface near the high light curtain space of 10m; Its light curtain space can be reduced to half the even lower; The driver discerns pavement of road and the place ahead barrier mainly relies on the illumination in this light curtain space, and we are called effective light curtain zone with the light curtain space in this height, has only the illumination in effective light curtain district just meaningful.Obviously, there is the invalid light curtain district of vast scale in existing high lamp position lighting system.
Simultaneously,, can prove that even in effective light curtain zone, also there is the invalid luminance component of vast scale in existing high lamp position lighting system according to cosine law.
In fact, having only the effective lighting component in effective light curtain zone is effective lighting.Invalid illumination comprises the illumination in invalid light curtain district and the invalid luminance component in effective light curtain zone.
On the other hand, according to inverse square law, the illumination vertical distribution rule of existing high lamp position illumination is last bright dark down.This feasible illumination that is in the invalid light curtain district on top can be higher than the illumination in the effective light curtain district that is positioned at the bottom.This obviously dark following bright illumination primary demand and runs counter to driver's observation is needed.
Therefore, existing main flow lighting system all have the invalid illumination of vast scale and run counter to the illumination primary demand problem.
(3) the low problem of visibility
About the installing space 30m of high lamp position street lamp, this makes the advance vertical illumination of direction of motor vehicle be difficult to evenly (" zebra stripes " on this non-horizontal illumination meaning).Have research to point out, the vertical illumination of subregion very a little less than, even approach zero.
We know that there are the almost positive correlation in the place ahead object surface brightness and spatial vertical illumination, and brightness and the place ahead target visibility the mesopic vision scope also segmentation present positive correlation, see accompanying drawing 4.
As can be seen from Figure 4, reduce to 0.1-0.5cd/m when mean flow rate
2The time, visibility will be reduced to below 20%.
This shows under the street lighting mode of high lamp position, has the low especially zone of visibility.
The inhomogeneous direction of traffic front space brightness irregularities (flickering) that also will cause of vertical illumination also can reduce the visibility RP value of the place ahead target, shown in accompanying drawing 5.Vertical illumination inhomogeneous will cause part dark space visibility lower on the one hand, also cause the reduction of whole visibility simultaneously.
Above-mentioned analysis shows that existing general road lighting mode (high lamp position lighting system) is the basic reason that has these 3 problems, and this mode can not solve dazzle, invalid illumination and the low problem of visibility.
High lamp position lighting system is along with the application of high voltage gas discharge (comprising HPS) light source is born, and exposed tangible drawback; Along with the invention of new type light sources such as LED also will inevitably produce new more advanced lighting system.
The appearance of led light source provides opportunity for addressing the above problem really.
LED has that brightness height, volume are little, colour rendering high and low pressure safety and can disperse characteristics such as installation, and this provides suitable light source for solving three problems from another approach.
But; LED application at present mainly is to carry out simple substitution with LED and conventional light source with research and development; Nearly all LED producer completely continues to use the mentality of designing of conventional road lamp; The high-power LED street lamp of pursue tens watts, going up hectowatt in the hope of with present HPS lamp moulding, mounting means is identical or compatible; Causing current LED street lamp and mounting means is that standard designs and makes with " snakehead (dull and stereotyped snakehead) lamp " that is applicable to the HPS light source all almost, but not is that starting point is researched and developed with the LED luminescence law.
We know that low power led light source is installed suitable the dispersion, does not also have outstanding heat dissipation problem.But the middle and high lamp of the collection of high-power LED street lamp position illumination has then brought the problem bad, that durability is bad and inconvenient maintenance etc. originally should not occur of dispelling the heat; Caused a series of function and quality problems thus, caused the LED street lamp to be under suspicion on the contrary in illuminating engineering circle.
In fact, be not the change of lighting system with led light source replacement HPS light source, also can not solve above-mentioned 3 problems that high lamp position lighting system exists.
LED street lighting with the last hectowatt that simply replaces with characteristic, high lamp position does not only solve the problem that traditional HPS street lamp exists; New problems such as heat radiation have been increased on the contrary; This shows that present LED street lighting need walk out the simple pattern that substitutes, carry out with embody the LED own characteristic, performance LED advantage is researching and developing from principal mode of purpose.
In the recent period, hanging down lamp position street lighting mode begins to occur.In the street lighting of low lamp position, light fixture is directly installed on road guard, the isolation strip, to the road surface light projector, to satisfy the necessary lighting demand in road surface.
Announced a kind of two-way low level LED road lamp among the patent CN201110175282.5, this lamp adopts LED as light source, in fact is common guard rail lamp, and main difference is common guard rail lamp unilateral illumination, and this lamp can be to two-side lighting.Practice proves that guard rail lamp can not satisfy the index of through street illumination standard defined.
Patent (ZL 200720095548.4) CN201014304Y then discloses a kind of low-mounting height street lamp, adopts the MH lamp as light source, and installing space is 8m to 11m, and setting height(from bottom) is in 1.2m.Should low lamp position illumination section overcome the bigger invalid light curtain district problem that high lamp position lighting system exists; As adopt led light source, can partly solve the heat dissipation problem of high-power LED light source etc.But still there is following problem:
1, illumination efficiency is low
Should low lamp position lighting system, though overcome the problem that there is bigger invalid lighting space in the illumination of high lamp position to a certain extent, because the pitch smaller between the light source, consequently the transverse illumination component strengthens, and is reverse, the orthodromic illumination component is very little.Analysis shows; The transverse illumination component is mainly effective for raising visibility level of object on road surface under the improper weather condition; Transverse illumination is very little for the desired brightness contrast contribution that the basic brightness in road surface is provided, forms between objects in front surface brightness and raising objects in front and the road surface background of driver's observation road ahead and barrier under the normal weather condition, is not the effective means of road lighting.
In fact, the disclosed lighting system of CN 201014304Y is in the leading indicator of lighting energy saving---have a clear superiority in unlike existing high lamp position lighting system on the power density.
2, the visibility level is low
Should hang down lamp position lighting system; Reverse, luminance component adopts same light source and light fixture in the same way; Colourity is identical, the irradiation space is not independent; Between road surface background and objects in front, can't form higher brightness contrast and color contrast, and the luminance uniformity on road surface is lower, causes the visibility level of objects in front lower.
3, this low lamp position lighting system, all illumination concentrates on below the 1.5m height of road surface, can not observe the necessary space of barrier, the place ahead illumination for the driver provides.
4, this low lamp position lighting system can not really be eliminated dazzle, in driver's FOV, still can feel to come from front side light fixture " light-emitting area " dazzle (because of setting height(from bottom) at 1.2m).
5, there is " stroboscopic " problem in this low lamp position lighting system, is prone to cause driver's visual fatigue.
In sum; Throw light on and hang down two kinds of lighting systems of lamp position illumination in above-mentioned high lamp position; Remain a lamp in itself and born the illumination of road lighting, space, complicated weather triple tasks of throwing light on simultaneously, they spatially, the time goes up mutual restriction, can not all reach the best; Logically, have only above-mentioned task is decomposed, by independently small-power, high-effect light source, light fixture and Lighting Control Assembly are accomplished separately; Control respectively, independent operating just possibly accomplished the best respectively aspect road lighting, space illumination, the complicated weather illumination; Thereby reach overall the best; Thereby improve illumination efficiency greatly, improve the visibility level, energy savings.
Summary of the invention
The present invention combines 7 of the multiple demands of through street illumination, 2 of specific questions.On this basis, the inventor proposes following relevant countermeasure, sees the following form.
Lighting demand:
Specific question:
The present invention proposes a kind of new road lighting system---a kind of low lamp position multidimensional road lighting mode; This lighting system is made up of the luminance component of a plurality of dimensions; Comprise one dimension reverse illumination component, one dimension luminance component, one dimension transverse illumination component and the vertical luminance component of one dimension in the same way, each component all has light source and the light fixture of oneself.
The luminance component of said a plurality of dimensions is independent separately on illumination functions, photochromic scope, direction of illumination, irradiation space, can adjust separately; On control mode, but each luminance component isolated operation or combined running; On operational mode, can adopt normal mode or energy saver mode; With different control modes and operational mode optimum organization, can give play to more high-effect.
The light source of said each luminance component and light fixture, all independent operating; Light fixture is installed in the both sides, through street, highly is not higher than 1.5m, separately setting or integrated.
The basic principle of said low lamp position reverse illumination foundation is: the road surface is the main background of driver's observation the place ahead barrier, and it is the basic demand of tunnel illumination that necessary road surface brightness is provided, and reducing dazzle and improving luminance uniformity is the vital task of tunnel illumination.When street lamp is positioned at the road both sides, with garage direction of illumination in the opposite direction towards road surface, motor vehicle the place ahead light projector, and regular reflection, if disregard the energy loss in the light air transfer, then light source is (seeing accompanying drawing 6) in the luminance component of driver's eye boresight direction:
E
r: the reflection illumination vector of light source on the road surface;
E
e: road reflection illumination is at the component of driver's eye boresight direction;
α: the incidence angle of light source, i.e. angle between road surface normal and the light source light projector direction;
θ: the angle on light source light projector direction plane, place and plane, pilot's line of vision direction place.
When α → 89 °, E
e→ E
r.cos θ, when promptly the light source height reduces, road reflection will increase at the light radiation of observing on the sight line; In road lighting, the α angle of the light source that install much smaller than low level at the α angle of the high-order light source of installing is so road reflection illumination is also thrown light on much smaller than low lamp position at the component of driver's eye boresight direction during the illumination of high lamp position.
When θ → 90 °, the light source irradiation direction is vertical with the track, at this moment, and E
e→ 0, illumination efficiency is extremely low.
Light source truly is reflected into irregular reflection on the road surface, irregular reflection is regular reflection and irreflexive stack, defers to Lambert law.
Above-mentioned analysis shows; When light source is parallel to road surface (low lamp position), direction of illumination and garage's (reverse illumination) in the opposite direction irradiation road surface, the place ahead so that light projector angle is approaching, can obtains higher road reflection brightness, the higher brightness uniformity on the pilot's line of vision direction and can control dazzle at smaller value; Among the present invention, the function of reverse illumination component provides necessary road surface brightness, the higher brightness uniformity and control dazzle at smaller value; The light source that is used for reverse illumination; Colour temperature is not higher than 4000K, highly is lower than the automobile driver eye-level display, and direction of illumination is in the opposite direction with place track garage; The range of exposures horizontal direction is respectively 90 ° to 180 ° and 180 ° to 270 °; 180 ° to 220 ° of vertical direction (seeing accompanying drawing 7), the irradiation space is side space and road surface under the lamp high position, no elevation angle scattering (seeing accompanying drawing 8); Operational mode is two kinds of normal mode (Chang Quankai in normal lighting time) and energy saver modes (light modulation on the normal mode basis).
Basic principle is thrown light in the same way for (seeing accompanying drawing 9) in said low lamp position:
E
e＝E
r·cosα·cosβ
E
r: light source is at the reflection illumination vector on barrier surface;
E
e: the reflection illumination on barrier surface is at the component of driver's eye boresight direction;
α: the incidence angle of light source, i.e. angle between road surface and the light source light projector direction;
β: the angle between reflection illumination vector and the driver's eye optical axis.
When α → 0 ° and during β → 0 °, E
e→ E
r, promptly observe the light radiation E on the sight line
eTo obtain maximum; Above-mentioned analysis shows, when light source is parallel to road surface (low lamp position), direction of illumination with garage's direction identical (illumination in the same way) pre-irradiation side space so that light projector angle is approaching, can obtain higher barrier reflecting brightness on the pilot's line of vision direction; Among the present invention; The function of luminance component is with the light source than high-color rendering in the same way; The space illumination in road the place ahead is provided for automobile driver; When using jointly, through strengthening the brightness contrast between road surface background and the place ahead barrier, the visibility level that color contrast improves barrier with low lamp position reverse illumination component; The light source that is used for throwing light in the same way, colour temperature are higher than the reverse illumination component, and colour rendering index is greater than 70; Height is near the automobile driver eye-level display; Direction of illumination is identical with garage's direction in track, place, and the range of exposures horizontal direction is respectively 0 ° to 90 ° and 270 ° to 0 ° (seeing accompanying drawing 10), 0 ° to 40 ° of vertical direction (seeing accompanying drawing 11); The irradiation space is a lamp high position superjacent air space, does not have common factor with the reverse illumination component; Operational mode is normal mode (in normal lighting time standard-sized sheet) at times and energy saver mode (light modulation on the normal mode basis).
The basic principle of said transverse illumination foundation is: descend in weather conditions such as rain, mist, haze, cigarettes, the reason of the remarkable step-down of efficient of motor vehicle high beam is in the air in motor vehicle the place ahead, to have assembled the aerosol micel of a large amount of suspension.This incident light that causes part directive motor vehicle objects in front on the one hand also no show object is just absorbed and scattering by the water clusters on the light path; Its scattered portion forms white veil; Promptly " white (mist) wall effect " causes the driver not see the barrier in road the place ahead; Be that the incident light light after reflection that arrives the motor vehicle objects in front is absorbed and scattering by being suspended in airborne aerosol micel on the other hand, weakened catoptrical brightness and contrast, cause the visibility of motor vehicle the place ahead barrier to reduce greatly.When the angle between incident light and the pilot's line of vision when vertical, can effectively overcome " white (mist) wall " phenomenon, be the effective ways that solve the greasy weather road lighting; Among the present invention, the function of transverse illumination component provides direction of illumination and is bordering on vertical space illumination with driver's direction of visual lines, improves the visibility level of complicated weather condition inferoanterior barrier; The light source and the light fixture that are used for transverse illumination; Tool is than the spectrum of high penetrating power; Its direction of illumination is vertical with garage's direction in track, place, and the range of exposures horizontal direction is respectively 0 ° to 180 ° and 180 ° to 0 °, parallel with the road surface (seeing accompanying drawing 12); The irradiation space is upper and lower space, lamp high position and road surface, with reverse illumination, luminance component has common factor in the same way; Operational mode is two kinds of normal mode (not opening under the normal weather, only standard-sized sheet when rain, mist, cigarette, haze weather) and energy saver modes (light modulation on the normal mode basis).
The basic principle of said vertical illumination foundation is: the road surface has an accident, and when needing the indication orientation, the vertical light that a branch of penetration power is strong can form local terrestrial reference in the irradiation place; Among the present invention, the function of vertical luminance component provides guidance lighting, when needing rescue when having an accident, and the clear and definite aloft accident that indicates orientation; Be used for the light source and the light fixture of vertical illumination, its direction of illumination is vertical with the road surface, 87 ° to 93 ° of ranges of exposures, (seeing accompanying drawing 13), and the irradiation space is the road top, does not have common factor with other luminance component, light source is photochromic to be monochromatic or a plurality of photochromic alternate; Operational mode is not for open at ordinary times, and is only manually opened under the special requirement situation.
Said low lamp position multidimensional road lighting mode, for non-horizontal highway section, because visual range shortens, the more horizontal highway section of power density power density strengthens; For the non-rectilinear highway section, because visual range shortens, power density strengthens than straight line highway section power density.
The key technology of said low lamp position multidimensional road lighting mode is to limit dazzle; Restriction is used for the measure of the light source of reverse illumination for the dazzle of this driving direction formation, is to adopt on the light fixture to cut a light shadow shield and a reasonable luminous intensity distribution; The measure of the dazzle that restriction is used for throwing light in the same way, the light source of transverse illumination constitutes for the opposite direction of traffic is on the intermediate isolating band, to install louvered anti-dazzle grid additional.
Said low lamp position multidimensional road lighting mode has opening, the luminance component formation base illumination of above-mentioned a plurality of dimensions, and the measure of further improving illumination functions is to add more multidimensional luminance component.
Beneficial effect of the present invention is: the Traditional Road lighting system is decomposed into multidimensional illumination, constitutes reverse illumination component, luminance component, transverse illumination component and vertical luminance component in the same way.Bear road lighting, space illumination and illumination of complicated weather and guidance lighting task respectively.According to task character, special-purpose light source and light fixture are set, be target to improve driver's sense; With power density (being significantly less than the power density of existing HID lamp and the high lamp of LED lamp position lighting system) and not have the street lighting dazzle be two constraintss, under the mesopic vision theoretical direction, in each task; Each performs its own functions for different purposes light sources and light fixture; Independent control makes its realizes maximal efficiency, thereby makes general lighting reach polyoptimal.
The mechanism of eliminating dazzle based on low lamp position multidimensional road lighting mode is; The position illumination of the high lamp of tradition is only made an issue of on Design of Luminaires; It is to adopt aggregate measures that multidimensional illumination system is eliminated the dazzle key, and the Sun-shading type isolation strip is set in the design lamps light shield, shelters from the dazzle of opposite driving.
The present invention has following comparative advantages:
1, compares with high lamp position lighting system
1) energy-conservation
There is bigger invalid lighting space in high lamp position lighting system, in the space of effective lighting, also has bigger invalid luminance component; Thereby cause the illumination efficiency of high lamp position lighting system low; Its essence is that the irradiation space is excessive, shines nonessential zone, and direction of illumination is also unreasonable; In the multidimensional lighting system that the present invention proposes, the approach one that improves illumination efficiency is to have dwindled the field of illumination greatly, and makes Illumination Distribution reasonable; For road lighting, the efficient of the reverse radiation modality in low lamp position is far above existing general lighting system, for the illumination of the place ahead barrier, low lamp position in the same way the efficient of radiation modality far above existing general lighting system.Above-mentioned dual mode combines, and Each performs its own functions for light source and light fixture, and power density will greatly reduce than existing high lamp position lighting system.
2) reduce dazzle
Under the lighting system of high lamp position; Reverse light projector component can cause this driving direction to attend the direct glare of garage front upper place; The light projector component basic reason that then causes the opposite direction of traffic to attend the direct glare of garage front upper place is that light source is positioned on driver's eye-level display and light projector downwards in the same way, thereby directly is exposed in the ken of driver the place ahead; In the multidimensional lighting system that the present invention proposes, light source is positioned under driver's eye-level display and downward light projector, and takes to cut a light measure; Light source is positioned near driver's eye-level display and the light projector that makes progress, and takes down to cut a light measure.Above-mentioned two kinds of light projectors can avoid light source directly to be exposed in the ken of driver the place ahead with a section light measure, significantly reduce glare index than existing high lamp position lighting system.
3) improve visibility
Because the multidimensional lighting system has been separated reverse illumination component, the irradiation space and the light modulation separately of luminance component in the same way, can form stronger road surface background and the brightness contrast between the objects in front; In addition, through for the reverse illumination component, in the same way luminance component colourity separately control strengthen color contrast; Above-mentioned two kinds of measures all will improve the visibility level of objects in front than existing high lamp position lighting system.
4) the present invention compares with the high lamp of tradition position and need not high lamp stand; Assembled in situ is simple, is convenient to regular maintenance simultaneously, needn't seal the track in order to change light fixture; No matter still weigh, all reduce greatly than general road lighting system at present from operating cost from investment once.
2, compare with existing low lamp position lighting system
The present invention with compare in the invention of the disclosed low-mounting height street lamp of CN 201014304Y, at first, different fully with the several essential characteristics of the method for operation at lighting theory, major function, direction of illumination, irradiation space.The function of reverse illumination component provides the road lighting of road ahead among the present invention, is used for the light source and the light fixture of reverse illumination, and its direction of illumination is in the opposite direction with the garage in track, place, and the irradiation space is side space and road surface under the lamp high position; The function of luminance component is the space illumination that road the place ahead is provided for automobile driver in the same way, light source that is used for throwing light in the same way and light fixture, and its direction of illumination is identical with garage's direction in track, place, and the irradiation space is a lamp high position superjacent air space; Above-mentioned two luminance component have been born whole tasks of road lighting under the normal weather condition.
Be not difficult to find out; In the lighting system of the disclosed low-mounting height street lamp of CN 201014304Y invention only with one dimension component of the present invention---the transverse illumination component is close; And the transverse illumination component among the present invention is not participated in road lighting under the normal weather condition and only as auxiliary luminance component, function is the visibility level that improves under the complicated weather condition.On the method for operation, transverse illumination is not turned on light under normal weather, only when rain, mist, cigarette, haze weather, opens; Because bearing the radiation modality of the reverse illumination component of road lighting under the normal weather condition among the present invention is reverse no elevation angle scattering, makes the road surface brightness of pilot's line of vision direction improve greatly, dazzle reduces greatly, and vertically the uniformity also is significantly increased.And luminance component is when using with reverse illumination jointly in the same way, and direction of illumination, irradiation space and reverse illumination component do not have common factor, therefore can be through strengthening and the brightness contrast of road surface background and the visibility level that color contrast improves objects in front; This can't accomplish in the disclosed low-mounting height street lamp invention of CN 201014304Y.
In sum; What the present invention was based on that small-power high light effect source own characteristic carries out uses research and development from principal mode; Overcome the drawback that traditional high lamp position lighting system and existing low lamp position lighting system exist; Solve dazzle, invalid illumination and vertically problems such as uniformity difference, significantly improve illumination efficiency, have good road surface brightness, the vertically uniformity and inductivity when cutting down the consumption of energy significantly, and do not have " stroboscopic " problem.
Description of drawings
Fig. 1 is that existing high lamp position lighting system exists the dazzle sketch map;
Fig. 2 is the sketch map that can't eliminate dazzle;
Fig. 3 is a high lamp position illumination light curtain sketch map;
Fig. 4 is the relation of road surface mean flow rate and visibility RP;
Fig. 5 be brightness evenly with the relation of visibility RP;
Fig. 6 is a reverse illumination principle schematic of the present invention;
Fig. 7 is the present invention's lighting theory sketch map in the same way;
Fig. 8 is the horizontal direction sketch map of reverse illumination of the present invention;
Fig. 9 is the vertical direction sketch map of reverse illumination of the present invention;
Figure 10 is the horizontal direction sketch map that the present invention is thrown light in the same way;
Figure 11 is the vertical direction sketch map that the present invention is thrown light in the same way;
Figure 12 is the horizontal direction sketch map of transverse illumination of the present invention;
Figure 13 is the vertical direction sketch map of the vertical illumination of the present invention;
The specific embodiment
Below in conjunction with embodiment the present invention is described further, it should be understood that embodiment only is used for the purpose of illustration, never limits protection scope of the present invention.
Using low lamp position multidimensional lighting system, to carry out road lighting optimal design process following:
1, on the through street of one section closed operation, confirm the power density higher limit of the type road according to design specification, by low lamp position multidimensional lighting system cloth lamp, choose lamp height, lamp apart from light source, light fixture parameters such as, single lamp power and distribution curve fluxs by experience;
2, calculate lighting parameters such as road surface brightness, the uniformity, space illumination, the uniformity, glare index, visibility index according to above-mentioned parameter;
3, the parameter with above-mentioned lighting parameter and design specification compares.If satisfy, then get into 4 comprehensively; Do not satisfy, light source, light fixture parameters such as adjustment lamp height, lamp distance, single lamp power and distribution curve flux return 2;
4, obtain and satisfy the pairing light source of lighting parameter, the light fixture parameter of standard, as the basis of next step electrical design;
5, electrical design: comprise power supply and control; Each luminance component both can adopt normal mode or energy saver mode independent operating on the method for operation, also can different mode be carried out combined running;
6, on the intermediate isolating band, install the anti-dazzle grid additional, light source and light fixture are installed on the railing, parapet of through street both sides through metallic support and debugging.
The above only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and in spirit that claim of the present invention limited and scope, can carry out many changes, modification to it, even equivalent, but all will be in protection scope of the present invention.
Claims (10)
1. low lamp position multidimensional road lighting mode; It is characterized in that: this lighting system is made up of the luminance component of a plurality of dimensions; Comprise one dimension reverse illumination component, one dimension luminance component, one dimension transverse illumination component and the vertical luminance component of one dimension in the same way, each component all has light source and the light fixture of oneself.
2. a kind of low lamp position multidimensional road lighting mode according to claim 1 is characterized in that: the luminance component of said a plurality of dimensions is independent separately on illumination functions, photochromic scope, direction of illumination, irradiation space, can adjust separately; On control mode, but each luminance component isolated operation or combined running; On operational mode, can adopt normal mode or energy saver mode; With different control modes and operational mode optimum organization, can give play to more high-effect.
3. a kind of low lamp position multidimensional road lighting mode according to claim 1 is characterized in that: the light source of said each luminance component and light fixture, all independent operating; Light fixture is installed in the both sides, through street, highly is not higher than 1.5m, separately setting or integrated.
4. a kind of low lamp position multidimensional road lighting mode according to claim 1; It is characterized in that: the basic principle of said reverse illumination is: the road surface is the main background of driver's observation the place ahead barrier; It is the basic demand of road lighting that necessary road surface brightness is provided, and reducing dazzle and improving luminance uniformity is the vital task of road lighting; Inventor's research shows: when light source is parallel to road surface (low lamp position), direction of illumination and garage's (reverse illumination) in the opposite direction irradiation road surface, the place ahead so that light projector angle is approaching, can obtains higher road reflection brightness, the higher brightness uniformity on the pilot's line of vision direction and can control dazzle at smaller value; Among the present invention, the function of reverse illumination component provides necessary road surface brightness, the higher brightness uniformity and control dazzle at smaller value; The light source that is used for reverse illumination; Colour temperature is not higher than 4000K, highly is lower than the automobile driver eye-level display, and direction of illumination is in the opposite direction with place track garage; The range of exposures horizontal direction is respectively 90 ° to 180 ° and 180 ° to 270 °; 180 ° to 220 ° of vertical direction, the irradiation space is side space and road surface under the lamp high position, the scattering of the no elevation angle; Operational mode is normal mode (Chang Quankai in normal lighting time) or energy saver mode (light modulation on the normal mode basis).
5. a kind of low lamp position multidimensional road lighting mode according to claim 1 is characterized in that: the said basic principle of illumination in the same way is: brightness contrast, color contrast and the color rendering properties of light source between raising road surface background and the place ahead barrier helps improving the visibility level of barrier; Inventor's research shows: when light source is parallel to road surface (low lamp position), direction of illumination with garage's direction identical (illumination in the same way) pre-irradiation side space so that light projector angle is approaching, can obtain higher barrier reflecting brightness on the pilot's line of vision direction; Among the present invention; The function of luminance component is with the light source than high-color rendering in the same way; The space illumination in road the place ahead is provided for automobile driver; When using jointly, through strengthening the brightness contrast between road surface background and the place ahead barrier, the visibility level that color contrast improves barrier with low lamp position reverse illumination component; The light source that is used for throwing light in the same way, height is near the automobile driver eye-level display, and colour temperature is higher than the reverse illumination component; Colour rendering index is greater than 70; Direction of illumination is identical with garage's direction in track, place, and the range of exposures horizontal direction is respectively 0 ° to 90 ° and 270 ° to 0 °, 0 ° to 40 ° of vertical direction; The irradiation space is a lamp high position superjacent air space, does not have common factor with the reverse illumination component; Operational mode is normal mode (in normal lighting time standard-sized sheet) at times or energy saver mode (light modulation on the normal mode basis).
6. a kind of low lamp position multidimensional road lighting mode according to claim 1; It is characterized in that: the basic principle of said transverse illumination is: descend in weather conditions such as rain, mist, haze, cigarettes; The incident light of light source directive motor vehicle front space can form " white (mist) wall " phenomenon; Simultaneously, partial reflection light is absorbed and scattering by being suspended in airborne aerosol micel, causes the visibility of motor vehicle the place ahead barrier to reduce; When the angle between incident light and the pilot's line of vision when vertical, can effectively overcome " white (mist) wall " phenomenon, be the effective ways that solve the greasy weather road lighting; Among the present invention, the function of transverse illumination component provides direction of illumination and is bordering on vertical space illumination with driver's direction of visual lines, improves the visibility level of complicated weather condition inferoanterior barrier; The light source and the light fixture that are used for transverse illumination; Tool is than the spectrum of high penetrating power; Its direction of illumination is vertical with garage's direction in track, place, and the range of exposures horizontal direction is respectively 0 ° to 180 ° and 180 ° to 0 °, and is parallel with the road surface; The irradiation space is upper and lower space, lamp high position and road surface, with reverse illumination, luminance component has common factor in the same way; Operational mode is normal mode (not opening under the normal weather, only standard-sized sheet when rain, mist, cigarette, haze weather) or energy saver mode (light modulation on the normal mode basis).
7. a kind of low lamp position multidimensional road lighting mode according to claim 1; It is characterized in that: the basic principle of said vertical illumination is: the road surface has an accident; When needing the indication orientation, the vertical light that a branch of penetration power is strong can form local terrestrial reference in the irradiation place; Among the present invention, the function of vertical luminance component provides guidance lighting, when needing rescue when having an accident, and the clear and definite aloft accident that indicates orientation; Be used for the light source and the light fixture of vertical illumination, its direction of illumination is vertical with the road surface, 87 ° to 93 ° of ranges of exposures, and the irradiation space is the road top, does not have common factor with other luminance component, light source is photochromic to be monochromatic or a plurality of photochromic alternate; Operational mode is not for open at ordinary times, and is only manually opened under the special requirement situation.
8. a kind of low lamp position multidimensional road lighting mode according to claim 1 is characterized in that: for non-horizontal highway section, because visual range shortens, the more horizontal highway section of power density power density strengthens; For the non-rectilinear highway section, because visual range shortens, power density strengthens than straight line highway section power density.
9. a kind of low lamp position multidimensional road lighting mode according to claim 1, its key technology is to limit dazzle; Restriction is used for the measure of the light source of reverse illumination for the dazzle of this driving direction formation, is to adopt on the light fixture to cut a light shadow shield and a reasonable luminous intensity distribution; The measure of the dazzle that restriction is used for throwing light in the same way, the light source of transverse illumination constitutes for the opposite direction of traffic is on the intermediate isolating band, to install louvered anti-dazzle grid additional.
10. a kind of low lamp position multidimensional road lighting mode according to claim 1; It is characterized in that: said this lighting system has opening; The luminance component formation base illumination of above-mentioned a plurality of dimensions, the measure of further improving illumination functions is to add more multidimensional luminance component.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210334282.XA CN102798065B (en) | 2012-09-11 | 2012-09-11 | Low-lamp-position multi-dimensional road lighting system |
| EP13837609.0A EP2896875B1 (en) | 2012-09-11 | 2013-09-11 | Multi-dimensional street lighting system |
| PCT/CN2013/083351 WO2014040540A1 (en) | 2012-09-11 | 2013-09-11 | Multi-dimensional street lighting system |
| US14/644,781 US20150362140A1 (en) | 2012-09-11 | 2015-03-11 | Multi-dimensional road lighting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210334282.XA CN102798065B (en) | 2012-09-11 | 2012-09-11 | Low-lamp-position multi-dimensional road lighting system |
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| Publication Number | Publication Date |
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| CN102798065A true CN102798065A (en) | 2012-11-28 |
| CN102798065B CN102798065B (en) | 2015-03-25 |
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| CN201210334282.XA Active CN102798065B (en) | 2012-09-11 | 2012-09-11 | Low-lamp-position multi-dimensional road lighting system |
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