CN111765424A - Underground pipe gallery lighting method based on natural light - Google Patents
Underground pipe gallery lighting method based on natural light Download PDFInfo
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- CN111765424A CN111765424A CN202010667658.3A CN202010667658A CN111765424A CN 111765424 A CN111765424 A CN 111765424A CN 202010667658 A CN202010667658 A CN 202010667658A CN 111765424 A CN111765424 A CN 111765424A
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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
- F21S19/00—Lighting devices or systems employing combinations of electric and non-electric light sources; Replacing or exchanging electric light sources with non-electric light sources or vice versa
- F21S19/005—Combining sunlight and electric light sources for indoor illumination
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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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
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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
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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
- F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
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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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0464—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
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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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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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
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/40—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of hollow light guides
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a natural light-based underground pipe gallery lighting method; the method comprises the following steps: s1, installing natural light illuminating systems and artificial light sources at equal intervals on the top of the logistics channel of the underground pipe gallery; s2, arranging a light-transmitting cover on the top of the natural light illuminating system, wherein the light-transmitting cover is arranged above the ground surface; an optical signal sensor is arranged above the natural light illuminating system and is connected with a controller and a control switch; s3, acquiring an illuminance value of the external environment by the optical signal sensor, and controlling the natural light illumination system and the artificial illumination light source according to the actual situation of the illuminance value; s4, adjusting the brightness of the natural light illuminating system and lighting the artificial illuminating light source; the natural light illumination of the underground pipe gallery logistics is realized, the transmittance is convenient and adjustable, the use is convenient, the energy is saved, and the utilization rate of the natural light is high; meanwhile, the natural light is full-color illumination, and the color rendering property and the human eye vision adaptability are good.
Description
Technical Field
The invention belongs to the field of underground pipe gallery logistics illumination, and particularly relates to an underground pipe gallery illumination method based on natural light.
Background
The underground comprehensive pipe gallery is a public tunnel which is built underground in a city and is used for intensively laying municipal pipelines such as electric power, communication, broadcast television, water supply and the like; the underground logistics system is a logistics mode with innovation significance, has the advantages of high speed, high accuracy and the like, and is an important effective way for solving urban traffic jam, reducing environmental pollution and improving the accessibility and quality of urban goods transportation; the underground logistics system can meet the development mode of circular economy, accords with the development requirement of a resource-saving society, is a necessary choice for the sustainable development of the city in China, and can be mutually promoted and jointly developed without the support of an underground comprehensive pipe gallery when the underground logistics system is constructed. .
However, in the existing underground pipe gallery technology, because the underground space cannot be irradiated by natural light, the illumination mode generally adopts electric energy to drive illumination, and the electric energy drive illumination consumes huge energy; at present, thermal power generation is mainly adopted in China, and particularly, the thermal power generation is not beneficial to harmonious development of human and nature while the current worldwide problems such as energy exhaustion and environmental pollution are solved; therefore, natural light illumination pushed by the underground pipe gallery is an important way for health, energy conservation and emission reduction.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a natural light-based underground pipe gallery lighting method, which realizes natural light illumination of underground pipe gallery logistics, is convenient and adjustable in transmittance, convenient to use, energy-saving and high in natural light utilization rate; meanwhile, the natural light is full-color illumination, and the color rendering property and the human eye vision adaptability are good.
The invention provides the following technical scheme:
a lighting method of underground pipe gallery based on natural light; the method comprises the following steps:
s1, installing natural light illuminating systems and artificial light sources at equal intervals on the top of the logistics channel of the underground pipe gallery;
s2, arranging a light-transmitting cover on the top of the natural light illuminating system, wherein the light-transmitting cover is arranged above the ground surface; an optical signal sensor is arranged above the natural light illuminating system and is connected with a controller and a control switch;
s3, acquiring an illuminance value of the external environment by the optical signal sensor, and controlling the natural light illumination system and the artificial illumination light source according to the actual situation of the illuminance value;
and S4, adjusting the brightness of the natural light illuminating system and lighting the artificial illuminating light source.
Preferably, in step S1, the natural light illumination system and the artificial light source are arranged in two rows, the two rows are spaced by 1 meter, and are arranged at the top of the underground pipe gallery logistics channel in parallel.
Preferably, in step S2, the controller controls the permanent magnet synchronous motor and the artificial lighting source to be turned on and off, and the permanent magnet synchronous motor controls the shade to be turned on and off to adjust the brightness of the natural light lighting system; meanwhile, the on and off of the artificial lighting source is controlled by detecting the illuminance value of the external environment.
Preferably, in step S3, the control mode is divided into three levels, the first level, when the light signal sensor detects that the ambient illumination in the light guide is lower than 3000lx, the controller automatically turns on the artificial lighting source, and at the same time, the permanent magnet motor is controlled to turn on the light-shielding sheet, so as to enhance the natural illumination.
Preferably, in step S3, in the second level, when the illuminance of the external environment is 3000lx-10000 lx, part of the artificial illumination light sources are turned on, and the permanent magnet motor is controlled to further control the opening and closing angle of the light shielding sheet, so as to enhance the natural illuminance.
Preferably, in step S3, when the illuminance of the third level environment is greater than 10000 lx, the artificial illumination light source is turned off, and all natural illumination systems are used for lighting; all use the natural light to throw light on, further make reasonable use of light source through this kind of mode, promote the illumination travelling comfort of illuminating effect and natural light.
Preferably, the artificial lighting source is a fluorescent lamp.
Preferably, the lighting method adopts a light transmission system for logistics of the underground pipe gallery; comprises a light pipe, a light-transmitting cover and a diffuser; the light-transmitting cover is a hemispherical cover body made of transparent materials, a light-gathering mechanism is arranged between the light-transmitting cover and the light guide pipe, and the light-gathering mechanism is connected with the light-transmitting cover and the light guide pipe in a sealing manner; a diffuser is arranged below the light guide pipe, an adjusting mechanism is arranged between the diffuser and the light guide pipe, and the diffusing angle of the diffuser can be adjusted through the adjusting mechanism; the light guide pipe is provided with a light adjusting mechanism, the light adjusting mechanism comprises a permanent magnet synchronous motor connected to the outer side wall of the light guide pipe, an output shaft of the permanent magnet synchronous motor is connected with a rotating shaft, and the other end of the rotating shaft is rotatably connected with the inner wall of the light guide pipe through a bearing; the rotating shaft is connected with a shading sheet, and the shading sheet is driven to rotate by the permanent magnet synchronous motor to adjust the angle so as to change the natural illuminance entering the light guide pipe; one side of the bottom of the light guide pipe is connected with a universal connecting rod, the universal connecting rod is connected with a universal ball head in a matching mode, and the universal ball head is connected with the diffuser.
Preferably, the section of the light-gathering mechanism is of a trapezoid structure, and one long side of the trapezoid is provided with a light-gathering lens for gathering light; a light adjusting lens which is parallel to the condensing lens, has the same central axis, has the same condensing ratio and is confocal is arranged on one short side of the trapezoid; the direction of the dimming lens is opposite to the installation direction of the condensing lens, the converged light rays are re-adjusted into parallel light rays, and the loss of scattered light is reduced.
Preferably, the shading sheet is of two semicircular structures, and is driven by the permanent magnet synchronous motor to be opened and closed, so that the effect of shading strong light is achieved; the side of the light shading sheet facing the light shading cover is coated with light absorbing materials, and the opposite side of the light shading sheet is coated with high light reflection materials.
Preferably, the adjusting mechanism comprises a fixed plate, the fixed plate is connected to one side of the light guide pipe, a servo motor is arranged on the fixed plate, and an output shaft of the servo motor penetrates through the fixed plate and is connected with a threaded rod; the threaded rod is in clearance connection with the fixed plate, a moving block is sleeved on the threaded rod and is in matched rotating connection with the threaded rod through an inner threaded hole, and a limiting block is arranged at the other end of the threaded rod.
Preferably, the moving plate is symmetrically provided with two movable connecting rods, and the two movable connecting rods are rotatably connected with the moving block through pin shafts.
Preferably, the other ends of the two movable connecting rods are rotatably connected with sliding blocks through pin shafts, and the sliding blocks are connected with sliding grooves in a matched mode.
Preferably, the sliding groove is formed in the top of the diffuser, and the sliding groove and the sliding block are arranged correspondingly.
Preferably, the light-transmitting cover and the light-gathering mechanism are arranged above the underground pipe gallery stratum, and the light guide pipe and the light-diffusing cover are arranged inside the underground pipe gallery stratum.
Preferably, because the shading sheet is shaded and one side is scribbled high light reflection material, consequently, when two shading sheets are folded, can not influence the transmission of light, when PMSM control its divided, the shading sheet shelters from light transmission channel, realizes the purpose of light regulation.
Preferably, the condensing lens and the adjusting lens are fresnel lenses.
Preferably, the dimming mechanism is divided into a manual adjustment mode and an automatic adjustment mode, the manual adjustment mode controls the opening and closing of the shading sheet by controlling the permanent magnet synchronous motor according to the illumination requirement in the underground pipe gallery; the automatic adjustment also comprises an optical signal sensor arranged at the joint of the top of the light guide pipe and the light gathering mechanism and connected with a controller, and the controller is connected with the permanent magnet synchronous motor and is matched with manual illumination for common use; control in three grades, when light signal sensor detects the ambient illuminance in the light pipe and is less than 3000lx, open artifical illumination source through the controller is automatic, the environment is when illuminance is in 3000lx-10000 lx, open partial artifical illumination source, the environment is when illuminance is greater than 10000 lx, close artifical illumination source, all use the natural light to throw light on, through the further rational utilization light source of this kind of mode, promote the illumination travelling comfort of illuminating effect and natural light.
Preferably, in order to increase the light transmission amount of the light guide, the high light reflection material painted inside the light guide is an ultra-silver-plated material, so that the light transmission amount is increased, and the loss of natural light in reflection is reduced.
Preferably, the light guide pipe is arranged and matched with the light gathering mechanism, so that the optical loss is further reduced, the reflectivity of the light guide pipe is increased, and the reflectivity range of the light guide pipe is 20-96%; the radius of the light guide is R, the light flux phi at the entrance of the light guide satisfies the following relation:
φ=α·πR2E；
in the above formula, phi is unit lm; e is the horizontal illuminance generated by the entrance of the light pipe, in lx; r is in cm; alpha is luminous flux coefficient and has the value range of 1.369-11.58.
Preferably, the condensing lens reduces the loss of natural light in the transmission process by condensing light and the dimming lens changes the light into parallel light, the diameter of the condensing lens is D1, and the diameter of the dimming lens is D2; the luminous flux of the luminous flux phi at the entrance of the light guide satisfies the following relationship:
φ=β·（(πD12/2-πD12/2) E）；
in the above formula, the units of D1 and D2 are cm; beta is the light gathering coefficient, and the value range is 2.25-15.368.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention relates to a lighting method of an underground pipe gallery based on natural light, which realizes natural light lighting of underground pipe gallery logistics through a light guide pipe, a light transmitting cover and a light scattering cover, has convenient and adjustable transmittance, convenient use, energy conservation and high utilization rate of natural light; meanwhile, the natural light is full-color illumination, and the color rendering property and the human eye vision adaptability are good.
(2) According to the underground pipe gallery lighting method based on natural light, the servo motor drives the threaded rod to rotate through the arranged adjusting mechanism, the threaded rod drives the moving block to move, the connecting rod is further driven to slide on the light scattering cover, the irradiation angle of the light scattering cover can be adjusted, the actual irradiation range of the light scattering cover is increased, and the underground pipe gallery lighting method based on natural light has important significance in actual use.
(3) The invention relates to a natural light-based underground pipe gallery lighting method, wherein a section of a light-gathering mechanism is in a trapezoid structure, and a light-gathering lens is arranged on one long side of the trapezoid to gather light; a light adjusting lens which is parallel to the condensing lens, has the same central axis, has the same condensing ratio and is confocal is arranged on one short side of the trapezoid; the direction of the dimming lens is opposite to the installation direction of the condensing lens, the converged light rays are re-adjusted into parallel light rays, and the loss of scattered light is reduced.
(4) According to the underground pipe gallery lighting method based on natural light, the dimming mechanism is arranged, and the backlight surface of the light shading sheets is coated with the high-light reflection material, so that when the two light shading sheets are folded, the transmission of light rays cannot be influenced, when the two light shading sheets are controlled to be separated by the permanent magnet synchronous motor, the light shading sheets shade the light ray transmission channel, the purpose of light ray adjustment is achieved, and the comfortableness of natural light rays irradiated inside the underground pipe gallery is improved.
(5) The invention relates to a natural light-based underground pipe gallery lighting method, which enables a light guide pipe and a light gathering mechanism to achieve reasonable configuration by the relationship among the luminous flux of the light guide pipe, the light reflectivity of the light guide pipe and the radius of the light guide pipe, further reduces optical loss, increases the reflectivity of the light guide pipe and reduces light loss.
(6) According to the natural light-based underground pipe gallery lighting method, the light flux of the light guide pipe, the diameter of the condensing lens and the diameter of the dimming lens are limited, the condensing lens collects light rays, and the dimming lens adjusts the light rays into parallel light rays, so that the loss of natural light in the transmission process is further reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a block flow diagram of the present invention.
Fig. 2 is an overall structural view of the present invention.
Fig. 3 is a schematic view of the light condensing mechanism of the present invention.
Fig. 4 is a top view of the dimming mechanism of the present invention.
Fig. 5 is an overall schematic diagram of the dimming mechanism of the present invention.
Fig. 6 is a schematic view of the adjustment mechanism of the present invention.
Fig. 7 is a schematic diagram of the principle of the present invention.
In the figure: 1. a light pipe; 2. a light-transmitting cover; 3. a diffuser; 4. a light condensing mechanism; 5. a dimming mechanism; 6. an adjustment mechanism; 7. a universal connecting rod; 8. a universal ball head; 9. an earth formation; 401. a condenser lens; 402. a light-adjusting lens; 501. a permanent magnet synchronous motor; 502. a shading sheet; 503. a rotating shaft; 601. a fixing plate; 602. a servo motor; 603. a moving block; 604. a movable connecting rod; 605. a threaded rod; 606. a limiting block; 607. a chute; 608. a slide block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1: a lighting method of underground pipe gallery based on natural light; the method comprises the following steps:
s1, installing natural light illuminating systems and artificial light sources at equal intervals on the top of the logistics channel of the underground pipe gallery;
s2, arranging a light-transmitting cover on the top of the natural light illuminating system, wherein the light-transmitting cover is arranged above the ground surface; an optical signal sensor is arranged above the natural light illuminating system and is connected with a controller and a control switch;
s3, acquiring an illuminance value of the external environment by the optical signal sensor, and controlling the natural light illumination system and the artificial illumination light source according to the actual situation of the illuminance value;
and S4, adjusting the brightness of the natural light illuminating system and lighting the artificial illuminating light source.
In step S1, the natural light illumination system and the artificial light source are arranged in two rows, the two rows are spaced by 1 meter, and are arranged at the top of the underground pipe gallery logistics channel in parallel.
In the step S2, the controller controls the permanent magnet synchronous motor and the switch of the artificial lighting source, and the brightness of the natural lighting system is adjusted by controlling the opening and closing of the shading sheet through the permanent magnet synchronous motor; meanwhile, the on and off of the artificial lighting source is controlled by detecting the illuminance value of the external environment.
In step S3, the control mode is divided into three levels, the first level, when the light signal sensor detects that the ambient illuminance in the light guide is lower than 3000lx, the controller automatically turns on the artificial lighting source, and simultaneously controls the permanent magnet motor to turn on the shading sheet, thereby enhancing the natural illuminance.
In step S3, in the second level, when the illuminance of the external environment is 3000lx-10000 lx, part of the artificial illumination light sources are turned on, and the permanent magnet motor is controlled to further control the opening and closing angle of the light shielding sheet, so as to enhance the natural illuminance.
In step S3, when the illuminance of the third level environment is greater than 10000 lx, the artificial illumination light source is turned off, and all natural illumination systems are used for lighting; all use the natural light to throw light on, further make reasonable use of light source through this kind of mode, promote the illumination travelling comfort of illuminating effect and natural light.
The artificial lighting source is a fluorescent lamp.
Example two
2-7, on the basis of the first embodiment, a light transmission system for logistics of an underground pipe gallery; comprises a light pipe 1, a light-transmitting cover 2 and a diffuser 3; the light-transmitting cover 2 is a hemispherical cover body made of transparent materials, a light-gathering mechanism 4 is arranged between the light-transmitting cover 2 and the light guide pipe 1, and the light-gathering mechanism 4 is connected with the light-transmitting cover 2 and the light guide pipe 1 in a sealing manner; a diffuser 3 is arranged below the light guide pipe 1, an adjusting mechanism 6 is arranged between the diffuser 3 and the light guide pipe 1, and the diffusing angle of the diffuser 3 can be adjusted through the arranged adjusting mechanism 6; the light guide pipe 1 is provided with a light adjusting mechanism 5, the light adjusting mechanism 5 comprises a permanent magnet synchronous motor 501 connected to the outer side wall of the light guide pipe 1, an output shaft of the permanent magnet synchronous motor 501 is connected with a rotating shaft 503, and the other end of the rotating shaft 503 is rotatably connected with the inner wall of the light guide pipe 1 through a bearing; the rotating shaft 503 is connected with a shading sheet 502, and the permanent magnet synchronous motor 501 drives the shading sheet 502 to rotate for angle adjustment so as to change the natural illuminance entering the light guide tube 1; one side of the bottom of the light guide pipe 1 is connected with a universal connecting rod 7, the universal connecting rod 7 is connected with a universal ball head 8 in a matching mode, and the universal ball head 8 is connected with the diffuser 3.
The section of the light-gathering mechanism 4 is of a trapezoid structure, and a light-gathering lens 401 is arranged on one long side of the trapezoid to gather light; a light control lens 402 which is parallel to the condensing lens 401, has the same central axis, has the same condensing ratio and is confocal is arranged on one short side of the trapezoid; the direction of the dimming lens 402 is opposite to the installation direction of the condenser lens 401, and the converged light rays are re-adjusted into parallel light rays, so that the loss of scattered light is reduced.
The shading sheet 502 is of two semicircular structures, and is driven by the permanent magnet synchronous motor 501 to be opened and closed, so that the effect of shading strong light is achieved; one side of the light shield 502 facing the light shield is coated with a light absorbing material, and the opposite side is coated with a high light reflection material; the adjusting mechanism 6 comprises a fixing plate 601, the fixing plate 601 is connected to one side of the light guide pipe 1, a servo motor 602 is arranged on the fixing plate 601, and an output shaft of the servo motor 602 penetrates through the fixing plate 601 and is connected with a threaded rod 605; the threaded rod 605 is in clearance connection with the fixed plate 601, a moving block 603 is sleeved on the threaded rod 605, the moving block 603 is in matched and rotating connection with the threaded rod 605 through an internal threaded hole, and a limiting block 606 is arranged at the other end of the threaded rod 605; two movable connecting rods 604 are symmetrically arranged on the moving plate, and the two movable connecting rods 604 are rotatably connected with a moving block 603 through pin shafts; the other ends of the two movable connecting rods 604 are rotatably connected with a sliding block 608 through a pin shaft, and the sliding block 608 is connected with a sliding groove 607 in a matching manner; the sliding groove 607 is arranged at the top of the diffuser 3, and the sliding groove 607 and the sliding block 608 are arranged correspondingly.
The translucent cover 2 and the condensing mechanism 4 set up in the top of underground pipe gallery stratum 9, and light pipe 1 and diffuser 3 set up the inside in underground pipe gallery stratum 9.
Example three:
on the basis of the first embodiment, the light transmission system for logistics of the underground pipe gallery is provided; comprises a light pipe 1, a light-transmitting cover 2 and a diffuser 3; the light-transmitting cover 2 is a hemispherical cover body made of transparent materials, a light-gathering mechanism 4 is arranged between the light-transmitting cover 2 and the light guide pipe 1, and the light-gathering mechanism 4 is connected with the light-transmitting cover 2 and the light guide pipe 1 in a sealing manner; a diffuser 3 is arranged below the light guide pipe 1, an adjusting mechanism 6 is arranged between the diffuser 3 and the light guide pipe 1, and the diffusing angle of the diffuser 3 can be adjusted through the arranged adjusting mechanism 6; the light guide pipe 1 is provided with a light adjusting mechanism 5, the light adjusting mechanism 5 comprises a permanent magnet synchronous motor 501 connected to the outer side wall of the light guide pipe 1, an output shaft of the permanent magnet synchronous motor 501 is connected with a rotating shaft 503, and the other end of the rotating shaft 503 is rotatably connected with the inner wall of the light guide pipe 1 through a bearing; the rotating shaft 503 is connected with a shading sheet 502, and the permanent magnet synchronous motor 501 drives the shading sheet 502 to rotate for angle adjustment so as to change the natural illuminance entering the light guide tube 1; the direction of the dimming lens 402 is opposite to the installation direction of the condenser lens 401, and the converged light rays are re-adjusted into parallel light rays, so that the loss of scattered light is reduced.
The section of the light-gathering mechanism 4 is of a trapezoid structure, and a light-gathering lens 401 is arranged on one long side of the trapezoid to gather light; a light control lens 402 which is parallel to the condensing lens 401, has the same central axis, has the same condensing ratio and is confocal is arranged on one short side of the trapezoid; the direction of the dimming lens 402 is opposite to the installation direction of the condenser lens 401, and the converged light rays are re-adjusted into parallel light rays, so that the loss of scattered light is reduced.
The shading sheet 502 is of two semicircular structures, and is driven by the permanent magnet synchronous motor 501 to be opened and closed, so that the effect of shading strong light is achieved; the side of the light shield 502 facing the light shield is coated with a light absorbing material and the opposite side is coated with a highly light reflecting material.
The adjusting mechanism 6 comprises a fixing plate 601, the fixing plate 601 is connected to one side of the light guide pipe 1, a servo motor 602 is arranged on the fixing plate 601, and an output shaft of the servo motor 602 penetrates through the fixing plate 601 and is connected with a threaded rod 605; the threaded rod 605 is in clearance connection with the fixed plate 601, a moving block 603 is sleeved on the threaded rod 605, the moving block 603 is in matched and rotating connection with the threaded rod 605 through an internal threaded hole, and a limiting block 606 is arranged at the other end of the threaded rod 605; two movable connecting rods 604 are symmetrically arranged on the moving plate, and the two movable connecting rods 604 are rotatably connected with a moving block 603 through pin shafts; the other ends of the two movable connecting rods 604 are rotatably connected with a sliding block 608 through a pin shaft, and the sliding block 608 is connected with a sliding groove 607 in a matching manner; the sliding groove 607 is arranged at the top of the diffuser 3, and the sliding groove 607 and the sliding block 608 are arranged correspondingly; the translucent cover 2 and the condensing mechanism 4 set up in the top of underground pipe gallery stratum 9, and light pipe 1 and diffuser 3 set up the inside in underground pipe gallery stratum 9.
Since the backlight surface of the light-shielding sheets 502 is coated with the high light reflection material, when the two light-shielding sheets 502 are folded, the transmission of light rays is not influenced, and when the permanent magnet synchronous motor 501 controls the separation of the light-shielding sheets, the light-shielding sheets 502 shield the light ray transmission channel, so that the purpose of light ray adjustment is realized; the condensing lens 401 and the adjusting lens are fresnel lenses.
The dimming mechanism 5 is divided into a manual adjustment mode and an automatic adjustment mode, the manual adjustment mode controls the opening and closing of the shading sheet 502 by controlling the permanent magnet synchronous motor 501 according to the illumination requirement in the underground pipe gallery; the automatic adjustment also comprises that an optical signal sensor is arranged at the joint of the top of the light guide pipe 1 and the light gathering mechanism 4 and is connected with a controller, and the controller is connected with the permanent magnet synchronous motor 501 and is matched with manual illumination for use; control in three grades, when light signal sensor detects the environment illuminance in light pipe 1 and is less than 3000lx, open artifical illumination source through the controller is automatic, the environment is when illuminance is in 3000lx-10000 lx, open partial artifical illumination source, the environment is when illuminance is greater than 10000 lx, close artifical illumination source, all use the natural light to throw light on, further rational utilization light source through this kind of mode, promote the illumination travelling comfort of illuminating effect and natural light.
Example four:
on the basis of the third embodiment, in order to increase the light transmission amount of the light guide pipe 1, the high light reflection material coated inside the light guide pipe 1 is an ultra-hundred silver-plated material, so that the light transmission amount is increased, and the loss of natural light in reflection is reduced; the light guide pipe 1 is arranged and matched with the light gathering mechanism 4, so that the optical loss is further reduced, the reflectivity of the light guide pipe 1 is increased, and the reflectivity range of the light guide pipe 1 is 20-96%; the radius of the light guide 1 is R, the light flux Φ at the entrance of the light guide 1 satisfies the following relation:
φ=α·πR2E；
in the above formula, phi is unit lm; e is the horizontal illuminance, in lx, generated at the entrance of the light pipe 1; r is in cm; alpha is luminous flux coefficient and has the value range of 1.369-11.58.
The condensing lens 401 collects light rays, and the dimming lens 402 changes the light rays into parallel light rays, so that the loss of natural light in the transmission process is reduced, wherein the diameter of the condensing lens 401 is D1, and the diameter of the dimming lens 402 is D2; the luminous flux of the luminous flux phi at the entrance of the light guide 1 satisfies the following relationship:
φ=β·（(πD12/2-πD12/2) E）；
in the above formula, the units of D1 and D2 are cm; beta is the light gathering coefficient, and the value range is 2.25-15.368.
The device obtained by the technical scheme is a natural light-based underground pipe gallery lighting method, natural light illumination of underground pipe gallery logistics is realized through the light guide pipe 1, the light transmitting cover 2 and the light dispersing cover 3, the light transmittance is convenient and adjustable, the use is convenient, the energy is saved, and the utilization rate of natural light is high; meanwhile, natural light is full-color illumination, and the color rendering property and the human eye vision adaptability are good; through the arranged adjusting mechanism 6, the servo motor 602 drives the threaded rod 605 to rotate, the threaded rod 605 drives the moving block 603 to move, and the connecting rod is further driven to slide on the diffuser 3, so that the irradiation angle of the diffuser 3 can be adjusted, the actual irradiation range of the diffuser 3 is increased, and the adjusting mechanism has important significance in actual use; the section of the light-gathering mechanism 4 is in a trapezoid structure, and a light-gathering lens 401 is arranged on one long side of the trapezoid to gather light; a light control lens 402 which is parallel to the condensing lens 401, has the same central axis, has the same condensing ratio and is confocal is arranged on one short side of the trapezoid; the direction of the dimming lens 402 is opposite to the installation direction of the condensing lens 401, and the converged light rays are re-adjusted into parallel light rays, so that the loss of scattered light is reduced; by arranging the dimming mechanism 5, because the backlight surface of the light shielding sheets 502 is coated with the high light reflection material, when the two light shielding sheets 502 are folded, the transmission of light rays cannot be influenced, when the permanent magnet synchronous motor 501 controls the separation of the light shielding sheets, the light shielding sheets 502 shield the light ray transmission channel, the purpose of light ray adjustment is realized, and the comfort of natural light rays irradiated inside the underground pipe gallery is improved; the relationship among the luminous flux of the light guide 1, the light reflectivity of the light guide 1 and the radius of the light guide 1 ensures that the light guide 1 and the light gathering mechanism 4 achieve a reasonable configuration, further reduces optical loss, increases the reflectivity of the light guide 1 and reduces light loss; by limiting the relationship between the luminous flux of the light guide 1, the diameter of the condenser lens 401, and the diameter of the dimming lens 402, the condenser lens 401 further reduces the loss of natural light in the propagation process by condensing the light and the dimming lens 402 converting the light into parallel light.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A lighting method of underground pipe gallery based on natural light; the method is characterized by comprising the following steps:
s1, installing natural light illuminating systems and artificial light sources at equal intervals on the top of the logistics channel of the underground pipe gallery;
s2, arranging a light-transmitting cover on the top of the natural light illuminating system, wherein the light-transmitting cover is arranged above the ground surface; an optical signal sensor is arranged above the natural light illuminating system and is connected with a controller and a control switch;
s3, acquiring an illuminance value of the external environment by the optical signal sensor, and controlling the natural light illumination system and the artificial illumination light source according to the actual situation of the illuminance value;
and S4, adjusting the brightness of the natural light illuminating system and lighting the artificial illuminating light source.
2. The method of claim 1, wherein in step S1, the natural light illumination system and the artificial illumination source are arranged in two rows, spaced apart by 1 meter, and arranged in parallel at the top of the material flow channel of the underground pipe gallery.
3. The lighting method of the underground pipe gallery based on the natural light as claimed in claim 1, wherein in the step S2, the controller controls the permanent magnet synchronous motor and the switch of the artificial lighting source, and the permanent magnet synchronous motor controls the opening and closing of the shading sheet to adjust the brightness of the natural light lighting system; meanwhile, the on and off of the artificial lighting source is controlled by detecting the illuminance value of the external environment.
4. The lighting method for the underground pipe gallery based on the natural light as claimed in claim 1, wherein in the step S3, the control mode is divided into three levels, the first level, when the light signal sensor detects that the ambient illumination in the light pipe is lower than 3000lx, the controller automatically turns on the artificial lighting source, and simultaneously controls the permanent magnet motor to turn on the light shielding sheet, thereby enhancing the natural light illumination.
5. The method as claimed in claim 1, wherein in step S3, when the ambient illuminance is 3000lx-10000 lx, the second level turns on part of the artificial illumination light source, and the permanent magnet motor is controlled to further control the opening and closing angle of the light-shielding plate, thereby enhancing the natural illuminance.
6. The method for illuminating the underground pipe gallery based on the natural light as claimed in claim 1, wherein in step S3, when the illuminance of the third level environment is greater than 10000 lx, the artificial lighting source is turned off, and the natural light illuminating system is adopted for lighting; all use the natural light to throw light on, further make reasonable use of light source through this kind of mode, promote the illumination travelling comfort of illuminating effect and natural light.
7. The natural light based underground pipe gallery lighting method according to claim 1, wherein the artificial lighting source is a fluorescent lamp.
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