CN117793989B - Intermediate vision-oriented LED street lamp arrangement method - Google Patents
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Abstract
The invention provides an intermediate vision-oriented LED street lamp arrangement method, which comprises the following steps: s1, setting an intermediate vision spectrum luminous efficiency function; s2, determining a proportion coefficient according to the wavelength of the LED street lamp; s3, calculating to obtain the actual visual brightness of the LED street lamp according to the theoretical visual brightness and the intermediate visual spectrum luminous efficiency function; s4, determining the average illumination of the LED street lamp according to the actual visual brightness; s5, determining luminous flux of the LED street lamp according to the average illuminance and the irradiation area; s6, determining the required power of the LED street lamp according to the luminous flux and the photoelectric conversion efficiency; s7, determining the maximum irradiation area of the LED street lamp; s8, judging whether the available quantity of the LED street lamps meets the requirement, if so, entering a step S10, otherwise, entering a step S9; s9, determining the actual use quantity of the LED street lamps; s10, determining the light emitting angle and the mounting height of the LED street lamp.
Description
Technical Field
The invention relates to the technical field of intelligent street lamps, in particular to an LED street lamp arrangement method oriented to intermediate vision.
Background
The existing main road illumination mainly adopts a high-pressure sodium lamp, the light efficiency (luminous efficiency) is 80-120 lm/w, the illuminance is 25-50 lx, the uniformity is about 0.35, the light efficiency of an early LED light source is generally in the range of 70-100 lm/w, and the early LED light source is only used on branches and secondary trunk roads. With the development of silicon-based LED and other technologies, the light efficiency of the LED light source is improved to more than 120lm/w while the overall cost is effectively restrained, the optical advantages of the LED street lamp are gradually highlighted, and the LED street lamp has the advantages of small luminous solid angle, approximately point light source, convenience in design of a secondary optical system, high uniformity and high total light efficiency. The way of implementing the street lamp lighting energy conservation in the prior art mainly comprises the following steps: 1. the variable power ballast is used for saving energy of products by using novel energy-saving light sources such as LEDs and the like as technical means, the design of low-carbon illumination is used for saving energy, the management of on-demand illumination and control energy saving as technical means is used for saving energy, the LED light source is used as a street lamp light source, and the light distribution design of the street lamp and the cooperation of a single lamp monitoring module can realize that the illumination effect and the energy saving requirement are simultaneously met.
Intermediate vision is a vision in which when the adaptation brightness of eyes is between the adaptation brightness range of photopic vision and scotopic vision, cone cells and stem cells of retina act simultaneously, at this time, the human eyes change the brightness, color, space, response feel characteristics and the like, the perception of the central fossa of the human eyes becomes as easy as the perception of the edge part becomes easier, and the perception of the edge part becomes easier as the adaptation brightness is reduced, but the color feel is gradually weakened. Because the street lamp illumination environment at night is in intermediate vision, in order to obtain safer, energy-saving and reasonable illumination effects in street lamp illumination, the accessibility of the illumination effects under intermediate vision needs to be fully considered, but at present, the CIE has no standard function of the spectrum luminous efficiency of intermediate vision, and a measuring instrument and an evaluation system based on the spectrum luminous efficiency function of intermediate vision can cause error evaluation on the luminous efficiency of a light source and the illumination effects, so that the requirement of the spectrum luminous efficiency of intermediate vision cannot be met, and the street lamp cannot achieve the optimal illumination effect.
In order to solve the problems of realizing the lighting effect and energy-saving control of the LED street lamp facing the intermediate vision, the LED street lamp arrangement method facing the intermediate vision is needed to be provided.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides an intermediate vision-oriented LED street lamp arrangement method, which aims to meet the constraint of intermediate vision illumination effect, and the maximization of the light effect under the condition of meeting the intermediate vision illumination effect is realized by controlling the LED street lamp arrangement and the light shape, the power and the height of the LED street lamp.
In order to achieve the above purpose, the invention provides an intermediate vision-oriented LED street lamp arrangement method, which comprises the following steps:
S1, setting an intermediate vision spectrum luminous efficiency function;
this step also includes:
Step S11, setting an intermediate vision spectrum luminous efficiency function as follows:
s2, determining a proportion coefficient according to the wavelength of the LED street lamp;
s3, calculating to obtain the actual visual brightness of the LED street lamp according to the theoretical visual brightness and the intermediate visual spectrum luminous efficiency function;
S4, determining the average illumination of the LED street lamp according to the actual visual brightness;
s5, determining luminous flux of the LED street lamp according to the average illuminance and the irradiation area;
s6, determining the required power of the LED street lamp according to the luminous flux and the photoelectric conversion efficiency;
s7, determining the maximum irradiation area of the LED street lamp;
this step also includes:
step S71, determining the maximum irradiation area of the LED street lamp when the maximum power is calculated according to the following formula:
S8, judging whether the available quantity of the LED street lamps meets the requirement, if so, entering a step S10, otherwise, entering a step S9;
s9, determining the actual use quantity of the LED street lamps;
S10, determining the light emitting angle and the mounting height of the LED street lamp,
This step also includes:
Step S101, making the maximum irradiation area of the LED street lamp at the maximum power be the light-shaped area,
Step S102, determining the light emitting angle and the mounting height of the LED street lamp according to the following formula:
Wherein, Is an intermediate vision spectral luminous efficiency function,/>Is the wavelength of the LED street lamp,/>Is a proportionality coefficient of the material,Is a photopic spectrum photopic efficiency function,/>Is a photopic spectrum photopic efficiency function,/>Is the maximum irradiation area of the LED street lamp,/>Is the maximum power of the LED street lamp,/>Is the theoretical visual brightness,/>Is the photoelectric conversion efficiency of the LED street lamp,/>Is the maximum value of the luminous efficiency of the intermediate vision spectrum,/>Is the light shape area of the LED street lamp,/>Is the installation height of the LED street lamp,/>The LED street lamp is a luminous angle of the LED street lamp.
As a further description of the above technical solution: the step S2 includes:
Step S21, when Scale factor/>Is a constant;
step S22, when When the ratio is greater thanThe following relationship is satisfied:
Wherein, Is a first regression coefficient,/>Is the required net film illuminance,/>Is the first regression coefficient related to the required net film illuminance,/>Is a second regression coefficient,/>Is the second regression coefficient related to the required net film illuminance,/>Is the third regression coefficient,/>Is the third regression coefficient related to the required net film illuminance.
As a further description of the above technical solution: the step S3 includes:
Step S31, calculating the actual visual brightness of the LED street lamp according to the following formula:
Wherein, Is the actual visual brightness.
As a further description of the above technical solution: the step S4 includes:
step S41, calculating the average illumination of the LED street lamp according to the following formula:
Wherein, Is the average illuminance of the LED street lamp.
As a further description of the above technical solution: the step S5 includes:
Step S51, calculating the luminous flux of the LED street lamp according to the following formula:
Wherein, Is the luminous flux of the LED street lamp,/>The illumination area of the LED street lamp.
As a further description of the above technical solution: the step S6 includes:
Step S61, calculating the required power of the LED street lamp according to the following formula:
Wherein, Is the required power of the LED street lamp.
As a further description of the above technical solution: the step S8 includes:
step S81, setting the length of the area actually covered by all the LED street lamps as Width is/>The available quantity of the LED street lamps is/>，
Step S82, ifThen LED street lamp is used for/>At a distance ofThe middle part is placed on one side along the arrangement direction of the LED street lamp or is arranged on the other side along the/>At a distance ofTwo sides of the middle part along the arrangement direction of the LED street lamp are staggered, wherein,/>Expressed as long/>Sum width ofThe median maximum edge, then, go to step S10;
Step S83, if Then go to step S9.
As a further description of the above technical solution: the step S9 includes:
step S91, calculating the actual use quantity of the LED street lamp according to the following formula:
Step S92, mutually arranging LED street lamps For a distance of separation of/>The middle part is placed on one side along the arrangement direction of the LED street lamp or is arranged on the other side along the/>For a distance of separation of/>The LED street lamps are placed at two sides in a staggered manner along the arrangement direction of the LED street lamps, and step S10 is carried out;
Wherein, Is the actual use quantity of the LED street lamp.
As a further description of the above technical solution: the step S102 further includes:
Step S1021, when the light shape of the LED street lamp is circular, the area of the light shape The following formula should be satisfied:
Step S1022, when the light shape of the LED street lamp is elliptical, the light shape area The following formula should be satisfied:
Step S1023, when the light shape of the LED street lamp is rectangular, the area of the light shape The following formula should be satisfied:
Step S1024, when the light shape of the LED street lamp is triangular, the area of the light shape The following formula should be satisfied:
Wherein, Is the luminous angle of the LED street lamp perpendicular to the arrangement direction of the LED street lamp,/>The LED street lamp is characterized in that the light emitting angle of the LED street lamp is horizontal to the light emitting angle of the arrangement direction of the LED street lamp.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of an arrangement method of an LED street lamp facing to intermediate vision;
fig. 2 is a schematic diagram of a light pattern of a first embodiment of an LED street lamp arrangement method facing to intermediate vision according to the present invention;
fig. 3 is a schematic diagram of a light pattern of a second embodiment of an LED street lamp arrangement method for intermediate vision according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, in a first aspect of the present invention, an LED street lamp arrangement method facing intermediate vision is provided, including:
s1, setting an intermediate vision spectrum luminous efficiency function.
Optionally, this step further includes:
Step S11, setting an intermediate vision spectrum luminous efficiency function as follows:
Wherein, Is an intermediate vision spectral luminous efficiency function,
Is the wavelength of the LED street lamp, the unit is nm,
Is a proportionality coefficient of the material,
Is a scotopic vision spectral luminous efficiency function,
Is a photopic spectral photopic efficiency function.
S2, determining a proportion coefficient according to the wavelength of the LED street lamp;
Optionally, this step further includes:
Step S21, when Scale factor/>Is a constant;
step S22, when When the ratio is greater thanThe following relationship is satisfied:
Wherein, Is the wavelength of the LED street lamp, the unit is nm,
Is the first coefficient of regression that is to be applied,
Is the required net film illuminance in units of/>，
Is the first regression coefficient related to the required net-film illuminance,
Is the second coefficient of regression that is the coefficient of the second,
Is a second regression coefficient related to the required web illuminance,
Is the third coefficient of regression that is to be applied,
Is the third regression coefficient related to the required net film illuminance.
Optionally, the required net film illuminanceCan be set according to actual application scenes and application requirements, different requirements of the net film illumination have different first regression coefficients, second regression coefficients and third regression coefficients, and the net film illumination and the first regression coefficients/>Second regression coefficient/>Third regression coefficient/>For example, see:
Table one: correspondence table of net film illuminance and regression coefficient
Optionally, the required omentum illuminance may be a value different from the omentum illuminance of the table, a corresponding first regression coefficientSecond regression coefficient/>Third regression coefficient/>Recalculation is also required.
And S3, calculating to obtain the actual visual brightness of the LED street lamp according to the theoretical visual brightness and the intermediate visual spectrum luminous efficiency function.
Optionally, this step further includes:
Step S31, calculating the actual visual brightness of the LED street lamp according to the following formula:
Wherein, Is the actual visual brightness of the display,
Is theoretical visual brightness, can be set according to actual application requirements,
Is the maximum/>, of the luminous efficiency of the intermediate vision spectrum。
Optionally, the maximum value of the luminous efficiency of the intermediate vision spectrumCan be according to the required net film illuminanceThe determination is exemplified by:
and (II) table: maximum value comparison table of required net film illuminance and intermediate vision spectrum luminous efficiency
S4, determining the average illumination of the LED street lamp according to the actual visual brightness;
Optionally, this step further includes:
step S41, calculating the average illumination of the LED street lamp according to the following formula:
Wherein, Is the average illuminance of the LED street lamp,/>The LED street lamp is a luminous angle of the LED street lamp.
S5, determining luminous flux of the LED street lamp according to the average illuminance and the irradiation area;
Optionally, this step further includes:
Step S51, calculating the luminous flux of the LED street lamp according to the following formula:
Wherein, Is the luminous flux of the LED street lamp,/>The illumination area of the LED street lamp.
S6, determining the required power of the LED street lamp according to the luminous flux and the photoelectric conversion efficiency;
Optionally, this step further includes:
Step S61, calculating the required power of the LED street lamp according to the following formula:
Wherein, Is the required power of the LED street lamp,
Is the photoelectric conversion efficiency of the LED street lamp.
S7, determining the maximum irradiation area of the LED street lamp;
Optionally, this step further includes:
step S71, determining the maximum irradiation area of the LED street lamp when the maximum power is calculated according to the following formula:
Wherein, Is the maximum irradiation area of the LED street lamp,/>Is the maximum power of the LED street lamp.
S8, judging whether the available quantity of the LED street lamps meets the requirement, if so, entering a step S10, otherwise, entering a step S9;
Optionally, this step further includes:
step S81, setting the length of the area actually covered by all the LED street lamps as Width is/>The available quantity of the LED street lamps is/>；
Step S82, ifThe LED street lamps are mutually LED/>For a distance of separation of/>The middle LED street lamp is arranged along one side of the arrangement direction of the LED street lamp (when the LED street lamp is arranged along the length/>When the LED street lamps are arranged in the direction, the LED street lamps are arranged along the length/>, and the LED street lamps are arranged along the length/>, so that the LED street lamps are arranged along the length/>, and the LED street lamps are arranged along theSingle-sided or double-sided placement; when the LED street lamp is a LED street lamp with the width of the LED street lamp being equal to the width of the LED street lampWhen the LED street lamps are arranged in the direction, the LED street lamps are indicated to be arranged along the widthSingle-sided or double-sided placement, the same applies below), or at/>, each otherFor a distance of separation of/>Two sides of the middle part along the arrangement direction of the LED street lamp are staggered, wherein,/>Expressed as long/>Sum width/>The median maximum edge, then, go to step S10;
Step S83, if Then go to step S9.
S9, determining the actual use quantity of the LED street lamps;
Optionally, this step further includes:
step S91, calculating the actual use quantity of the LED street lamp according to the following formula:
That is to say, For/>Is an upward integer of (1), wherein,/>Is the actual use quantity of the LED street lamp.
Step S92, mutually arranging LED street lampsFor a distance of separation of/>The middle LED street lamps are arranged on one side along the arrangement direction of the LED street lamps or are mutually arranged at/>For a distance of separation of/>And (5) arranging the LED street lamps at two sides in a staggered manner along the arrangement direction of the LED street lamps, and then entering step S10.
S10, determining the light emitting angle and the mounting height of the LED street lamp.
Optionally, this step further includes:
Step S101, making the maximum irradiation area of the LED street lamp at the maximum power be the light-shaped area,
Step S102, determining the light emitting angle and the mounting height of the LED street lamp according to the following formula:
Wherein, Is the light-shaped area of the LED street lamp,
Is the installation height of the LED street lamp,
The LED street lamp is a luminous angle of the LED street lamp.
Alternatively, the light shape of the LED street lamp can be designed into one of a circle, an ellipse, a rectangle and a triangle according to the characteristics of the LED light source similar to a point light source, and the light shape area and the light emitting angleAnd determining the installation height of the LED street lamp.
Optionally, the step S102 further includes:
Step S1021, please refer to FIG. 2, when the light shape of the LED street lamp is circular, the area of the light shape The following formula should be satisfied:
Step S1022, when the light shape of the LED street lamp is elliptical, the light shape area The following formula should be satisfied:
Step S1023, when the light shape of the LED street lamp is rectangular, the area of the light shape The following formula should be satisfied:
in step S1024, please refer to FIG. 3, when the light shape of the LED street lamp is triangular, the area of the light shape The following formula should be satisfied:
Wherein, Is the light-emitting angle of the LED street lamp perpendicular to the arrangement direction of the LED street lamp,
The LED street lamp is characterized in that the light emitting angle of the LED street lamp is horizontal to the light emitting angle of the arrangement direction of the LED street lamp.
In a second aspect of the invention, an intermediate vision-oriented LED street lamp arrangement system is provided, and the LED street lamps are arranged by adopting the intermediate vision-oriented LED street lamp arrangement method as described above.
Optionally, an LED street lamp arrangement system facing intermediate vision includes: the LED lamp comprises an LED light source, a radiator, a lens and a lampshade, wherein the optical system comprises a lens, a reflector and a reflector controller.
Optionally, the shunt driving power supply, the reflector controller, the lifting motor, the variable power ballast and the communication module are electrically connected with the MCU controller, and the MCU controller is connected with the remote control terminal through the communication module.
Specifically, the shunt driving power supply and the MCU controller jointly act to realize the switching control of the light shape, the reflector controller and the MCU controller jointly act to realize the control adjustment of the light emitting angle, the lifting motor and the MCU controller jointly act to realize the adjustment of the mounting height, the remote control terminal communication module and the MCU controller jointly act to receive the light shape, the light emitting angle, the mounting height adjustment instruction and the street lamp arrangement switch instruction, and the variable power ballast and the MCU controller jointly act to realize the power adjustment of the LED light source.
Optionally, the LED lamp integrates an environmental sensor and is connected with the MCU controller for monitoring the temperature, humidity and air quality information of the surrounding environment.
Optionally, the light source of the LED lamp is a high color temperature lamp set and a low color temperature lamp set, wherein the high color temperature lamp set is a white or blue lamp set, and the low color temperature lamp set is a yellow or warm white lamp set.
Optionally, the communication module is a wired network connection module and/or a wireless network connection module.
Optionally, the wireless network connection module is one of zigbee, wifi, loRa, NB-Iot, PLCC, star flash, 4G and 5G.
The LED street lamp arrangement method for the intermediate vision provided by the invention takes the illumination effect of the intermediate vision as constraint, and the technical purpose of maximizing the illumination effect under the illumination effect of the intermediate vision is realized by controlling the arrangement of the LED street lamps and the light shape, the power and the height of the LED street lamps.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (5)
1. The method for arranging the LED street lamps facing the intermediate vision is characterized by comprising the following steps of:
S1, setting an intermediate vision spectrum luminous efficiency function;
this step also includes:
Step S11, setting an intermediate vision spectrum luminous efficiency function as follows:
s2, determining a proportion coefficient according to the wavelength of the LED street lamp;
this step also includes:
Step S21, when Scale factor/>Is a constant;
step S22, when When the ratio is greater thanThe following relationship is satisfied:
s3, calculating to obtain the actual visual brightness of the LED street lamp according to the theoretical visual brightness and the intermediate visual spectrum luminous efficiency function;
The step S3 includes:
Step S31, calculating the actual visual brightness of the LED street lamp according to the following formula:
S4, determining the average illumination of the LED street lamp according to the actual visual brightness;
s5, determining luminous flux of the LED street lamp according to the average illuminance and the irradiation area;
s6, determining the required power of the LED street lamp according to the luminous flux and the photoelectric conversion efficiency;
s7, determining the maximum irradiation area of the LED street lamp;
this step also includes:
step S71, determining the maximum irradiation area of the LED street lamp when the maximum power is calculated according to the following formula:
S8, judging whether the available quantity of the LED street lamps meets the requirement, if so, entering a step S10, otherwise, entering a step S9;
this step also includes:
step S81, setting the length of the area actually covered by all the LED street lamps as Width is/>The available quantity of the LED street lamps is/>；
Step S82, ifThen LED street lamp is used for/>At a distance ofThe middle part is placed on one side along the arrangement direction of the LED street lamp or is arranged on the other side along the/>At a distance ofTwo sides of the middle part along the arrangement direction of the LED street lamp are staggered, wherein,/>Expressed as long/>Sum width ofThe median maximum edge, then, go to step S10;
Step S83, if Then go to step S9;
s9, determining the actual use quantity of the LED street lamps;
this step also includes:
step S91, calculating the actual use quantity of the LED street lamp according to the following formula:
；
Step S92, mutually arranging LED street lamps For a distance of separation of/>The middle part is placed on one side along the arrangement direction of the LED street lamp or is arranged on the other side along the/>For a distance of separation of/>The LED street lamps are placed at two sides in a staggered manner along the arrangement direction of the LED street lamps, and step S10 is carried out;
S10, determining a light emitting angle and an installation height of an LED street lamp;
this step also includes:
Step S101, making the maximum irradiation area of the LED street lamp at the maximum power be the light-shaped area,
Step S102, determining the light emitting angle and the mounting height of the LED street lamp according to the following formula:
Wherein, Is an intermediate vision spectral luminous efficiency function,/>Is the wavelength of the LED street lamp,/>Is a proportionality coefficient,/>Is a photopic spectrum photopic efficiency function,/>Is a photopic spectrum photopic efficiency function,/>Is the maximum irradiation area of the LED street lamp,/>Is the maximum power of the LED street lamp,/>Is the theoretical visual brightness,/>Is the photoelectric conversion efficiency of the LED street lamp,Is the maximum value of the luminous efficiency of the intermediate vision spectrum,/>Is the light shape area of the LED street lamp,/>Is the installation height of the LED street lamp,/>Is the luminous angle of the LED street lamp,/>Is a first regression coefficient,/>Is the required net film illuminance,/>Is the first regression coefficient related to the required net film illuminance,/>Is a second regression coefficient,/>Is the second regression coefficient related to the required net film illuminance,/>Is the third regression coefficient,/>Is the third regression coefficient related to the required net film illuminance,Is the actual visual brightness,/>Is the actual use quantity of the LED street lamp.
2. The method for arranging LED street lamps facing to intermediate vision according to claim 1, wherein the step S4 comprises:
step S41, calculating the average illumination of the LED street lamp according to the following formula:
Wherein, Is the average illuminance of the LED street lamp.
3. The method for arranging LED street lamps facing to intermediate vision according to claim 2, wherein the step S5 includes:
Step S51, calculating the luminous flux of the LED street lamp according to the following formula:
Wherein, Is the luminous flux of the LED street lamp,/>The illumination area of the LED street lamp.
4. The method for arranging LED street lamps facing to intermediate vision according to claim 3, wherein the step S6 includes:
Step S61, calculating the required power of the LED street lamp according to the following formula:
Wherein, Is the required power of the LED street lamp.
5. The method for arranging LED street lamps facing to intermediate vision according to claim 1, wherein the step S102 further comprises:
Step S1021, when the light shape of the LED street lamp is circular, the area of the light shape The following formula should be satisfied:
Step S1022, when the light shape of the LED street lamp is elliptical, the light shape area The following formula should be satisfied:
Step S1023, when the light shape of the LED street lamp is rectangular, the area of the light shape The following formula should be satisfied:
Step S1024, when the light shape of the LED street lamp is triangular, the area of the light shape The following formula should be satisfied:
Wherein, Is the luminous angle of the LED street lamp perpendicular to the arrangement direction of the LED street lamp,/>The LED street lamp is characterized in that the light emitting angle of the LED street lamp is horizontal to the light emitting angle of the arrangement direction of the LED street lamp.
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| CN202410217662.8A CN117793989B (en) | 2024-02-28 | 2024-02-28 | Intermediate vision-oriented LED street lamp arrangement method |
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