CN113464893B - Roadside installation method for tunnel sunlight projection illumination with shadowless function - Google Patents
Roadside installation method for tunnel sunlight projection illumination with shadowless function Download PDFInfo
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- CN113464893B CN113464893B CN202110797005.1A CN202110797005A CN113464893B CN 113464893 B CN113464893 B CN 113464893B CN 202110797005 A CN202110797005 A CN 202110797005A CN 113464893 B CN113464893 B CN 113464893B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S11/00—Non-electric lighting devices or systems using daylight
- F21S11/002—Non-electric lighting devices or systems using daylight characterised by the means for collecting or concentrating the sunlight, e.g. parabolic reflectors or Fresnel lenses
- F21S11/005—Non-electric lighting devices or systems using daylight characterised by the means for collecting or concentrating the sunlight, e.g. parabolic reflectors or Fresnel lenses with tracking means for following the position of the sun
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/101—Outdoor lighting of tunnels or the like, e.g. under bridges
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Abstract
The invention relates to a roadside installation method of tunnel sunlight projection illumination with a shadowless function, and belongs to the field of tunnel engineering. The method comprises the following steps: s1: installing a plurality of sunlight reflecting illumination devices on two sides of a tunnel entrance; s2: calculating luminous flux of an illumination area in the tunnel; s3: the sunlight reflection illumination equipment can automatically track sunlight, and the collected sunlight passes through the optical system and then irradiates the collected sunlight into an illumination area in the tunnel in the projection direction; s4: all sunlight reflection illumination devices form brightness distribution meeting the visual requirement of tunnel driving in an illumination area in the tunnel. According to the invention, the projection direction, the illumination position and the area of each set of sunlight reflection illumination equipment are set, so that the light beam direction of each set of sunlight reflection illumination equipment can be accurately controlled, and direct sunlight illumination of direct sunlight illumination based on a shadowless illumination principle is realized.
Description
Technical Field
The invention belongs to the field of tunnel engineering, and relates to a roadside installation method for tunnel sunlight projection illumination with a shadowless function.
Background
At present, two main types of technologies for studying sunlight direct illumination tunnels are light guide tube illumination technology and optical fiber illumination technology. The light pipe illumination technology is characterized in that sunlight is transmitted to an area to be illuminated in a mode of multiple reflection in a light pipe, the sunlight is quickly attenuated in the light pipe due to multiple reflection times, the current latest technology is researched, and the sunlight loss coefficient in each 15 feet (4.57 meters) of the light pipe is 78.5 percent, so that the system has great limitation in tunnel illumination and is generally used in underground spaces with small transmission distance, such as underground garages and the like; the sunlight optical fiber illumination technology transmits sunlight through a low-loss quartz optical fiber, can transmit the sunlight to a distance of hundreds of meters at a low attenuation rate, is experimentally applied to a highway tunnel, and has the limitation of high optical fiber cost at present.
Disclosure of Invention
In view of the above, the present invention is directed to a roadside installation method for tunnel sunlight projection illumination with a shadowless function. The problems of too fast attenuation due to more reflection times in the light guide illumination technology and too high cost of optical fibers in the optical fiber illumination technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme:
a roadside installation method of tunnel sunlight projection illumination with a shadowless function comprises the following steps:
s1: a plurality of sunlight reflecting illumination devices are arranged on two sides of a tunnel entrance, the light efficiency of the sunlight reflecting illumination devices is eta, the lighting area is S, and the maximum illumination intensity of the ground in sunny days in summer is E 0 The maximum luminous flux which can be transmitted by a single set of sunlight reflection illumination equipment in summer on a sunny day is as follows:
φ 0 ＝E 0 Sη
s2: illumination area in a tunnel, required illumination luminous flux phi t Light flux phi t Calculated and determined according to the design rule of highway tunnel illumination, including the luminous flux phi required by the road surface r Light flux phi required by wall surface w Required luminous flux phi t All provided by sunlight reflecting lighting equipmentIn time, the number of sets of required equipment is:
N＝Φ t /Φ 0
s3: the sunlight reflecting illumination equipment can automatically track sunlight, the collected sunlight is irradiated into an illumination area in the tunnel in the projection direction after passing through the optical system, and the sunlight projected by the sunlight reflecting illumination equipment is set in the illumination area in the tunnel through the installation position of each sunlight reflecting illumination equipment and the setting of the horizontal deflection angle alpha and the vertical deflection angle beta of the light reflecting part of each sunlight reflecting illumination equipment;
s4: all sunlight reflection illumination devices form brightness distribution meeting the visual requirement of tunnel driving in an illumination area in the tunnel.
Optionally, when the sunlight reflection illumination device is installed, the parameters affecting the illumination area of sunlight in the tunnel include the height h from the center of the focus of the sunlight reflection illumination device to the ground, and the distance w from the center to the edge of the near-end lane 0 At a distance d from the tunnel portal 0 The horizontal deflection angle alpha and the vertical deflection angle beta of the curved surface reflector;
the distance between the near end of the illumination area of the projection light in the tunnel and the opening is d 1 Length d of longitudinal illumination area 2 The distance w of the proximal end from the tunnel wall 1 And a lateral area illumination width w 2 (ii) a And the installation parameters and the lighting area parameters of each set of sunlight reflection lighting equipment satisfy the following relations:
in the formula, D is the height of an exit port of the reflector, and gamma is the beam expansion angle of the light beam, and belongs to inherent parameters of the reflector and an optical system; when the system is adopted for tunnel sunlight illumination, each set of sunlight reflection illumination equipment sets the position and the range of an illumination area by adjusting the horizontal deflection angle alpha and the vertical deflection angle beta of the reflector.
Optionally, if the sunlight reflection illumination devices are in an adjacent state, the installation of the two sets of sunlight reflection illumination devices meets a certain distance condition:
the longitudinal spacing y satisfies the following condition:
in the formula, x represents the distance between the optical center of the two adjacent sets of equipment at the far end of the tunnel opening and the side edge of the tunnel; alpha represents the horizontal deflection angle of the set of sunlight reflection illumination equipment, which is different from the horizontal deflection angle of the front set of sunlight reflection illumination equipment; phi denotes the solar reflective lighting fixture diameter.
Optionally, when the formula (5) is satisfied, the installation parameters of different sets of sunlight reflection lighting equipment are adjusted according to the formulas (1) to (4) to enable the different sets of sunlight reflection lighting equipment to illuminate the whole area required by the sunlight projected by the different sets of equipment, and the installation parameters of the different sets of equipment are determined by adopting the following algorithm:
(1) calculating the luminous flux required by a sunlight direct illumination area in the tunnel, and calculating the luminous flux required by the road surface and the wall surface of the illumination area according to the highway tunnel illumination design rule;
(2) determining the maximum luminous flux which can be provided by a single set of reflective sunlight direct lighting equipment on sunny days according to product parameters or calculation;
(3) calculating the number of sets of required reflective sunlight direct lighting equipment by the aid of the (1) and the (2);
(4) determining the installation scheme of the reflection type sunlight direct illumination equipment at the tunnel portal according to the position of the tunnel portal, wherein the installation scheme comprises single-side installation, evenly-distributed double-side installation and unevenly-distributed double-side installation;
(5) the mounting position of a set of sunlight reflection lighting equipment closest to the hole is determined by combining the tunnel address, the tunnel orientation and the mountain height, namely the distance from the hole needs to meet the following conditions: d is more than or equal to Hctg (90 degrees to 23.26 degrees + local latitude);
(6) determining the installation distance of the sunlight reflecting illumination equipment on each side by the formula (5);
(7) determining a horizontal deflection angle alpha and a vertical deflection angle beta of each set of sunlight reflecting illumination equipment according to formulas (1) to (4); and simultaneously, in order to determine that the sunlight emitted by each set of sunlight reflecting illumination equipment is not completely shielded by the vehicle entering the tunnel, determining a horizontal deflection angle alpha and a vertical deflection angle beta of each set of sunlight reflecting illumination equipment according to formulas (1) to (4).
Optionally, the determining the horizontal deflection angle α and the vertical deflection angle β of each set of sunlight reflection illumination equipment according to the formulas (1) to (4) specifically includes:
1) Determining the illumination position and area of projection light of the first set of sunlight reflection illumination equipment on the single side in the tunnel according to the formulas (6) to (9), and setting a corresponding deflection angle;
in the formula, the subscript l represents the sunlight reflection phenomenon arranged on the left sideA direct lighting fixture, subscript r denotes a sunlight reflecting lighting fixture disposed on the right side; i denotes the fourth set from near to far from the tunnel entrance, i being 1 for the first set of sunlight reflecting lighting equipment; and d is required according to the relation of no mountain sheltering and solar altitude 10-l ≥D；
2) The illumination area within the tunnel between each side starting from the second set and the front sunlight reflecting illumination equipment satisfies the following condition for the left side:
d i0-1 ≥d (i-1)0-1 +y i-(i-1)-1 (10)
d i1-1 ＞d (i-1)0-1 and w i1-1 ＜w (i-1)1-1 (11)
In the formula, y i-(i-1)-1 The installation distance between two adjacent sunlight reflecting illumination equipment on one side is represented;
3) Setting the installation parameters of each side adjacent to each sunlight reflection illumination device according to the method of the step 2) until the following conditions are met:
d i1-1 ≤d max (12)
in the formula (d) max The farthest distance to be illuminated in the tunnel by the sunlight reflecting illumination system is shown;
the sunlight direction, the illumination position and the range of each set of sunlight reflection illumination equipment determined in the steps 1) to 3) are different, when a certain beam of light is shielded by the vehicle with the same illumination direction, at least one or more beams of sunlight are ensured not to be shielded by the vehicle, the sunlight illumination is ensured all the time in front of the driving direction, and the sunlight shadowless illumination mode under the condition that all the sunlight reflection illumination equipment is in effect is realized.
Optionally, the method is used for installing a sunlight reflection lighting device when sunlight illumination and electro-optical illumination are combined, and in the step (2), when the sunlight direct lighting device is in a sunny day, the maximum luminous flux is the luminous flux required by the tunnel minus the luminous flux provided by the electro-optical illumination system, that is, the method is used for installing the sunlight reflection lighting device when sunlight illumination and electro-optical illumination are combined, and the maximum luminous flux is the luminous flux required by the tunnel minus the luminous flux provided by the electro-optical illumination system
Φ s ＝Φ t -Φ e (13)
And (3) obtaining the number of the required sunlight direct equipment, and obtaining the installation position and angle corresponding to each set of equipment according to the steps (4) to (7).
The invention has the beneficial effects that:
(1) The method comprises the steps that the projection direction, the illumination position and the area of each set of sunlight reflection illumination equipment are set, so that the light beam direction of each set of sunlight reflection illumination equipment can be accurately controlled, even if part of light is shielded by vehicles, the light still irradiates the area needing illumination, and a direct sunlight illumination mode of direct sunlight illumination based on a shadowless illumination principle is realized;
(2) The proposed installation mode can provide a feasible installation technical guidance method for the sunlight reflection illumination equipment for the tunnel;
(3) The method is suitable for a pure sunlight direct illumination system and an illumination mode combining sunlight direct illumination and electro-optic illumination, and has the universality characteristic of the prior art.
(4) The reflective sunlight direct lighting system for the tunnel is a brand new technology at home and abroad, and a practical installation guidance method for the reflective sunlight direct lighting system for the tunnel lighting is not provided, so the reflective sunlight direct lighting system can provide a positive engineering implementation technology guidance method for the application of the reflective sunlight direct lighting system in the tunnel and similar engineering.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof.
Drawings
For a better understanding of the objects, aspects and advantages of the present invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a technical implementation of the present invention;
FIG. 2 is a relationship between a mounting position and a horizontal deflection angle and an illumination area;
FIG. 3 is a relationship of mounting position and vertical deflection angle to illumination area;
FIG. 4 is a diagram of the relationship between the positions of avoiding occlusion.
Reference numerals are as follows: 101-sunlight reflecting lighting equipment installed on both sides of the tunnel entrance, 102-lighting area inside the tunnel.
Detailed Description
The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 1, the implementation principle of the present invention is:
(1) 101, the lighting effect is eta, the lighting area of the sunlight reflection illumination device is S, the maximum illuminance on the ground in a fine day in summer is E, and the maximum luminous flux that each set of sunlight reflection illumination device can transmit in a fine day in summer is:
φ 0 ＝E 0 Sη
(2) 102 is the illumination area in the tunnel, the required illumination luminous flux is phi t The luminous flux phi t Can be calculated and determined according to the highway tunnel lighting design rules (JTG/TD 70/2-01-2014), including the required luminous flux phi of the road surface r Light flux phi required by wall surface w 。
(3) The sunlight reflecting illumination device 101 has a function of automatically tracking sunlight, and irradiates the collected sunlight into the illumination area 102 in the tunnel in a projecting direction after being shaped by the optical system, and the sunlight projected by the sunlight reflecting illumination device passes through the installation position (distance d from the tunnel entrance) of each sunlight reflecting illumination device in the illumination area 102 in the tunnel 0 And distance w from road edge 0 ) And setting a horizontal deflection angle alpha and a vertical deflection angle beta of the light reflecting part of each sunlight reflecting illumination device.
(4) All sunlight reflection illumination equipment jointly form brightness distribution meeting the visual requirement of tunnel driving in an illumination area through projection light.
As shown in FIGS. 2 and 3, the invention establishes the relationship between the installation parameters of a single set of sunlight illuminating equipment and the specific illuminating position of the illuminating area in the tunnel; the method comprises the steps of establishing the requirement of avoiding shielding of different sets of sunlight lighting equipment; sunlight projected by different sets of sunlight lighting equipment is established to meet the installation requirement of the actual lighting requirement of the lighting area in the tunnel; the projection type lighting mode is established to avoid the requirement of the vehicle on the installation parameters of light shielding and the like.
On the premise of establishing the installation method, the relation between the sunlight illumination light intensity change and the actual tunnel illumination requirement under different time periods and climatic conditions is determined, and the design requirement of compensating by adopting electro-optic illumination when the sunlight illumination does not meet the tunnel illumination requirement is met.
When each set of sunlight reflection illumination equipment is installed, parameters influencing the illumination area of sunlight in the tunnel comprise the height h between the center of the focus of the sunlight reflection illumination equipment and the ground and the distance w between the center and the edge of a near-end lane 0 At a distance d from the tunnel portal 0 The horizontal deflection angle α and the vertical deflection angle β of the curved mirror. Under the condition of setting the installation parameters, the distance d between the near end of the illumination area of the projection light in the tunnel and the opening is 1 Length d of longitudinal illumination area 2 Distance w of the proximal end from the tunnel wall 1 And a lateral area illumination width w 2 . And the installation parameters and the illumination area parameters of each set of sunlight reflection illumination equipment satisfy the following relations:
in the formula, D is the height of the exit port of the reflector, and γ is the beam expansion angle of the light beam, and belongs to intrinsic parameters of the reflector and the optical system. When the system is adopted for tunnel sunlight illumination, each set of sunlight reflection illumination equipment can set the position and the range of an illumination area by adjusting the horizontal deflection angle alpha and the vertical deflection angle beta of the reflector.
As shown in fig. 4, in order to avoid the light rays from being shielded by different sunlight reflecting illumination devices installed on the same side, the installation of two sets of adjacent sunlight reflecting illumination devices should satisfy a certain distance condition. The longitudinal spacing y should satisfy the following condition:
in the formula, x represents the distance between the optical center of two adjacent sets of equipment far away from the tunnel mouth and the side edge of the tunnel; alpha represents the horizontal deflection angle of the set of sunlight reflection illumination equipment, which can be different from the horizontal deflection angle of the previous set; phi denotes the sunlight reflecting illumination apparatus diameter.
Under the shielding-free condition meeting the formula (5), the whole area required by sunlight illumination projected by different sunlight reflection illumination equipment can be ensured by adjusting the installation parameters of different sets of sunlight reflection illumination equipment according to the formulas (1) to (4), and the installation parameters of the different equipment are determined by adopting the following algorithm:
(1) calculating the luminous flux required by a sunlight direct illumination area in the tunnel according to the highway tunnel illumination design rules (JTG/TD 70/2-01-2014), wherein the luminous flux required by the pavement and the wall surface of the illumination area is included;
(2) determining the maximum luminous flux which can be provided by a single set of reflective sunlight direct lighting equipment on sunny days according to product parameters or calculation;
(3) calculating the number of sets of required reflective sunlight direct lighting equipment by the aid of the (1) and the (2);
(4) the installation scheme of the reflective sunlight direct illumination equipment at the tunnel entrance is determined according to the position of the tunnel entrance, and the reflective sunlight direct illumination equipment can be installed on one side, on the two sides in an evenly distributed mode and on the two sides in an unevenly distributed mode;
(5) the mounting position of a set of sunlight reflection lighting equipment closest to the hole is determined by combining the tunnel address, the tunnel orientation and the mountain height, namely the distance from the hole needs to meet the following conditions: d is more than or equal to Hctg (90 degrees to 23.26 degrees + local latitude)
(6) Determining the installation distance of the sunlight reflecting illumination equipment on each side by the formula (5);
(7) the horizontal deflection angle alpha and the vertical deflection angle beta of each set of sunlight reflecting illumination equipment are determined by the formulas (1) to (4). Meanwhile, in order to determine that the sunlight emitted by each set of sunlight reflecting illumination equipment is not completely shielded by the vehicle entering the tunnel, the horizontal deflection angle alpha and the vertical deflection angle beta of each set of sunlight reflecting illumination equipment can be calculated according to the following algorithm according to the formulas (1) to (4):
1) Determining the illumination position and area of projection light of the first set of sunlight reflection illumination equipment on the single side in the tunnel according to formulas (6) to (9), and setting a corresponding deflection angle;
in the formula, a subscript l represents the right side, and is changed from subscript to r for sunlight reflection lighting equipment arranged on the right side; i denotes the set from near to far from the tunnel entrance, i being 1 for the first set of sunlight reflecting lighting equipment. And d is required according to the relation of no mountain sheltering and solar altitude 10-l ≥D。
2) The illumination area within the tunnel between the second set and the front sunlight reflecting lighting fixture on each side satisfies the following conditions (left side as an example):
d i0-1 ≥d (i-1)0-1 +y i-(i-1)-1 (10)
d i1-1 ＞d (i-1)0-1 and w i1-1 ＜w (i-1)1-1 (11)
In the formula, y i-(i-1)-1 Showing the installation spacing between two sunlight reflecting lighting fixtures that are adjacent on a single side (left side for example).
3) Setting the installation parameters of each side adjacent to each sunlight reflection illumination device according to the method of the step 2) until the following conditions are met:
d i1-1 ≤d max (12)
in the formula, d max Indicating the maximum distance that the sunlight reflecting illumination system needs to illuminate within the tunnel.
Because the sunlight direction, the illumination position and the range of each set of sunlight reflection illumination equipment determined in the steps 1) to 3) are different, when a certain beam of light is shielded by the vehicle with the same illumination direction, at least one or more beams of sunlight can be ensured not to be shielded by the vehicle, namely, the sunlight illumination can be ensured all the time in front of the driving direction, and the sunlight shadowless illumination mode can be realized under the condition that all the sunlight reflection illumination equipment is in effect.
The method provided by the invention is suitable for the installation mode of the sunlight reflection illumination equipment when sunlight illumination and electro-optic illumination are combined, and at the moment, in the method, the maximum luminous flux of the sunlight direct illumination equipment in the step (2) is obtained by subtracting the luminous flux provided by the electro-optic illumination system from the luminous flux required by the tunnel in a clear day. Namely, it is
Φ s ＝Φ t -Φ e (13)
And (4) obtaining the number of sets of the required sunlight direct equipment from the step (3), and obtaining the installation position and angle corresponding to each set of equipment according to the steps (4) to (7).
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (2)
1. A roadside installation method of tunnel sunlight projection illumination with a shadowless function is characterized in that: the method comprises the following steps:
s1: a plurality of sunlight reflection illumination devices are arranged on two sides of the tunnel entrance, the light efficiency of the sunlight reflection illumination devices is eta, the lighting area is S, and the maximum illumination intensity of the ground is E in a sunny day in summer 0 The maximum luminous flux which can be transmitted by a single set of sunlight reflection illumination equipment in summer on a sunny day is as follows:
φ 0 ＝E 0 S η
s2: illumination area in a tunnel, required illumination luminous flux phi t Light flux phi t According to the detailed rule of the lighting design of the road tunnel, the required luminous flux phi of the road surface is calculated and determined r Luminous flux phi required by wall surface w Required luminous flux phi t When all provided by sunlight reflection lighting equipment, the required equipment sets are as follows:
N＝Φ t /Φ 0
s3: the sunlight reflecting illumination equipment can automatically track sunlight, the collected sunlight is irradiated into an illumination area in the tunnel in the projection direction after passing through the optical system, and the sunlight projected by the sunlight reflecting illumination equipment is set in the illumination area in the tunnel through the installation position of each sunlight reflecting illumination equipment and the setting of the horizontal deflection angle alpha and the vertical deflection angle beta of the light reflecting part of each sunlight reflecting illumination equipment;
s4: all sunlight reflection illumination equipment forms brightness distribution meeting the visual requirement of tunnel driving in an illumination area in the tunnel together;
when the sunlight reflection illumination equipment is installed, parameters influencing the illumination area of sunlight in the tunnel comprise the height h from the center of the focus of the sunlight reflection illumination equipment to the ground and the distance w from the edge of a near-end lane 0 At a distance d from the tunnel portal 0 The horizontal deflection angle alpha and the vertical deflection angle beta of the curved surface reflector;
the distance between the near end of the illumination area of the projection light in the tunnel and the opening is d 1 Longitudinal illuminationLength d of the clear area 2 Distance w of the proximal end from the tunnel wall 1 And a lateral area illumination width w 2 (ii) a And the installation parameters and the lighting area parameters of each set of sunlight reflection lighting equipment satisfy the following relations:
in the formula, D is the height of an exit port of the reflector, and gamma is the beam expansion angle of the light beam, and belongs to intrinsic parameters of the reflector and an optical system; when the system is adopted for tunnel sunlight illumination, each set of sunlight reflection illumination equipment sets the position and the range of an illumination area by adjusting the horizontal deflection angle alpha and the vertical deflection angle beta of the reflector;
if the sunlight reflection illumination equipment is in an adjacent state, the installation of two sets of sunlight reflection illumination equipment meets the condition of a certain distance:
the longitudinal spacing y satisfies the following condition:
in the formula, x represents the distance between the optical center of the two adjacent sets of equipment at the far end of the tunnel opening and the side edge of the tunnel; alpha represents the horizontal deflection angle of the set of sunlight reflection illumination equipment, which is different from the horizontal deflection angle of the front set of sunlight reflection illumination equipment; phi represents the sunlight reflecting lighting equipment diameter;
when the formula (5) is met, the installation parameters of different sets of sunlight reflection illumination equipment are adjusted according to the formulas (1) to (4) to enable the different sets of sunlight reflection illumination equipment to illuminate the whole area required by sunlight projected by the different sets of sunlight reflection illumination equipment, and the installation parameters of the different sets of sunlight reflection illumination equipment are determined by adopting the following algorithm:
(1) calculating the luminous flux required by a sunlight direct illumination area in the tunnel, and calculating the luminous flux required by the road surface and the wall surface of the illumination area according to the highway tunnel illumination design rule;
(2) determining the maximum available luminous flux of a single set of reflective sunlight direct lighting equipment on sunny days according to product parameters or calculation;
(3) calculating the number of sets of required reflective sunlight direct lighting equipment by the aid of the devices (1) and (2);
(4) determining an installation scheme of the reflective sunlight direct illumination equipment at the tunnel entrance according to the position of the tunnel entrance, wherein the installation scheme comprises single-side installation, evenly-distributed double-side installation and unevenly-distributed double-side installation;
(5) the mounting position of a set of sunlight reflection lighting equipment closest to the opening is determined by combining the tunnel site, the tunnel orientation and the mountain height, namely the distance from the opening needs to meet the following conditions: d is more than or equal to Hctg (90 degrees to 23.26 degrees + local latitude);
(6) determining the installation distance of the sunlight reflecting illumination equipment on each side by the formula (5);
(7) determining a horizontal deflection angle alpha and a vertical deflection angle beta of each set of sunlight reflecting illumination equipment according to formulas (1) to (4); meanwhile, in order to determine that the sunlight emitted by each set of sunlight reflecting illumination equipment is not completely shielded by the vehicle entering the tunnel, the horizontal deflection angle alpha and the vertical deflection angle beta of each set of sunlight reflecting illumination equipment are determined according to the formulas (1) to (4);
the specific determination of the horizontal deflection angle α and the vertical deflection angle β of each set of sunlight reflection illumination equipment according to the formulas (1) to (4) is as follows:
1) Determining the illumination position and area of projection light of the first set of sunlight reflection illumination equipment on the single side in the tunnel according to formulas (6) to (9), and setting a corresponding deflection angle;
in the formula, a subscript 1 denotes a sunlight reflecting illumination equipment disposed on the left side, and a subscript r denotes a sunlight reflecting illumination equipment disposed on the right side; i denotes the fourth set from near to far from the tunnel entrance, i being 1 for the first set of sunlight reflecting lighting equipment; and d is required according to the relation of the sun altitude angle and the sun shading angle 10-l ≥D；
2) The illumination area within the tunnel between each side starting from the second set and the front sunlight reflecting lighting fixture satisfies the following condition for the left side:
d i0-1 ≥d (i-1)0-1 +y i-(i-1)-1 (10)
d i1-l ＞d (i-1)0-1 and w i1-1 ＜w (i-1)1-1 (11)
In the formula, y i-(i-1)-1 The installation distance between two adjacent sunlight reflecting illumination equipment on one side is represented;
3) Setting the installation parameters of each side adjacent to each sunlight reflection illumination device according to the method of the step 2) until the following conditions are met:
d i1-1 ≤d max (12)
in the formula, d max The farthest distance to be illuminated in the tunnel by the sunlight reflecting illumination system is shown;
the sunlight direction, the illumination position and the range of each set of sunlight reflection illumination equipment determined in the steps 1) to 3) are different, when a certain beam of light is shielded by the vehicle with the same illumination direction, at least one or more beams of sunlight are ensured not to be shielded by the vehicle, the sunlight illumination is ensured all the time in front of the driving direction, and the sunlight shadowless illumination mode under the condition that all the sunlight reflection illumination equipment is in effect is realized.
2. The roadside installation method of tunnel sunlight projection illumination with a shadowless function according to claim 1, wherein: the method is used for the installation mode of the sunlight reflection illumination equipment when the sunlight illumination and the electro-optic illumination are combined, in the step (2), when the sunlight direct illumination equipment is in a sunny day, the maximum luminous flux is the luminous flux required by the tunnel minus the luminous flux provided by the electro-optic illumination system, namely the maximum luminous flux is the luminous flux required by the tunnel minus the luminous flux provided by the electro-optic illumination system
Φ s ＝Φ t -Φ e (13)
And (3) obtaining the number of the required sunlight direct equipment, and obtaining the installation position and angle corresponding to each set of equipment according to the steps (4) to (7).
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| CN202110797005.1A CN113464893B (en) | 2021-07-14 | 2021-07-14 | Roadside installation method for tunnel sunlight projection illumination with shadowless function |
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| CN202110797005.1A CN113464893B (en) | 2021-07-14 | 2021-07-14 | Roadside installation method for tunnel sunlight projection illumination with shadowless function |
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