A tunnel lighting energy-saving system using tunnel sunshades and angle-adjustable lamps

Abstract

The present application belongs to the field of tunnel brightness adjustment, and specifically relates to a tunnel lighting energy-saving system using a tunnel sunshade and adjustable angle lamps, including a sunshade arranged at the tunnel entrance and exit sections, a dimming controller, and a plurality of passive solar light guides and angle-adjustable tunnel energy-saving lamps; the dimming controller is connected to the passive solar light guides and angle-adjustable tunnel energy-saving lamps by signal, and adjusts the brightness of the passive solar light guides and angle-adjustable tunnel energy-saving lamps while controlling the light reflection angle of the passive solar light guides and angle-adjustable tunnel energy-saving lamps. The present application dynamically responds to the brightness inside and outside the tunnel, ensuring that the driver's eyes are not affected by the rapid changes in brightness and darkness and that driving safety is not affected; it introduces sunlight outside the tunnel or lighting driven by solar power generation outside the tunnel into the tunnel, saving energy consumption of lighting fixtures inside the tunnel and achieving energy conservation and carbon reduction.

Description

Technical Field

[0001] The present application belongs to the field of tunnel brightness adjustment, and specifically relates to a tunnel lighting energy-saving system utilizing a tunnel sunshade and angle-adjustable lamps. Background Art

[0002] Tunnel shading sheds are installed at the entrances and exits of tunnels to reduce the contrast between light and dark after entering the tunnel, ease visual adaptation time, improve driving safety, and also protect lighting facilities.

[0003] Tunnel lighting energy conservation refers to the use of sensors to detect ambient light intensity, vehicle traffic conditions, human activity, and other conditions, automatically adjusting lighting brightness, color, and mode. This allows for real-time monitoring of energy consumption to minimize it.

[0004] However, current tunnel lighting energy saving is not the optimal solution: it only considers reducing energy consumption, and does not fully utilize the high-intensity lighting resources at the tunnel entrance.

[0005] Therefore, there is a need for tunnel lighting that utilizes tunnel sunshades and adjustable angle lamps, combined with intelligent lighting control and natural light sensing to achieve refined management of tunnel lighting.

[0006] Existing related technologies include a Chinese invention patent application number CN201710018230.4, entitled "Tunnel Entrance Section Daylighting and Illumination System", which discloses: a tunnel entrance section daylighting and illumination system, comprising a light-shielding shed (1), a light-guiding device (2), a reflector (3) and an in-tunnel light distribution system (4), wherein the light-shielding shed is located in the direction of the extension line of the highway outside the tunnel entrance, the light-guiding device is embedded in the roof of the light-shielding shed, the reflector is arranged directly below the light-guiding device, and the in-tunnel light distribution system is arranged at the top of the tunnel (5). The reflector reflects the outgoing light after passing through the light-guiding device to the in-tunnel light distribution system located at the tunnel vault, and the in-tunnel light distribution system distributes light energy on the tunnel wall and the ground as needed to achieve tunnel lighting.

[0007] Another example is the Chinese invention patent application number CN201811444083.8, entitled "Highway Tunnel Portal Dimming System Based on Equivalent Lighting", which discloses: The present invention provides a highway tunnel portal dimming system based on equivalent lighting, comprising a light-shielding shed arranged at the portal and an auxiliary dimming subsystem arranged at the portal; the light-shielding shed comprises arc-shaped ribs, longitudinal beams and a roof, the ribs are arranged with their lengths perpendicular to the extension direction of the tunnel, and the longitudinal beams are parallel to the extension direction of the tunnel; the light-shielding shed is divided into N sections from the direction away from the portal to the direction close to the portal, the spacing between adjacent ribs in the same section is equal, and the spacing between ribs in different sections gradually decreases from the end away from the portal to the end close to the portal; the auxiliary dimming subsystem comprises a lighting device arranged on the top outside the light-shielding shed, a light-scattering device arranged in the transition section of the tunnel, a detection unit for detecting tunnel parameters, and a controller unit.

[0008] The above two patents mainly achieve light transmission through a sunshade, and collect sunlight through a lighting device, and then irradiate the sunlight into the tunnel entrance to achieve brightness adjustment of the tunnel entrance. However, in actual applications, the angle of sunlight irradiation at the tunnel entrance changes continuously with different time periods of the day. This causes the length of sunlight irradiated on the ground by the sunshade to change. The angle of the light reflection structure in the above two patents is fixed, that is, it can only collect sunlight and irradiate it at a fixed angle to the ground inside the tunnel entrance. It is impossible to adjust the reflection angle according to the light intensity of the ground. Even if the reflection angle can be adjusted, its practicality is insufficient and it cannot achieve a natural transition to solve the changes in light intensity outside the tunnel entrance. Moreover, the lighting equipment in the above comparative documents requires an external power supply to achieve lighting when there is no sunlight at night, which does not meet the energy-saving requirements. Summary of the Invention

[0009] The present application aims to solve the above-mentioned problems existing in the prior art and proposes a tunnel lighting energy-saving system using a tunnel sunshade and adjustable angle lamps. Through this method, an energy storage device can be used to achieve nighttime lighting outside the tunnel entrance, and the lamps can adjust the angle of the reflected light to achieve lighting at different distances within the tunnel entrance, truly realizing a natural transition of light inside and outside the tunnel entrance.

[0010] In order to achieve the above object, the technical solution of the present invention is as follows:

[0011] A tunnel lighting energy-saving system using tunnel shading sheds and angle-adjustable lamps, comprising shading sheds arranged at the entrance and exit sections of the tunnel, a dimming controller, a plurality of passive solar light guides, and angle-adjustable tunnel energy-saving lamps;

[0012] At least two adjacent tunnel entrance reinforcement sections are provided near the tunnel entrance section, at least two adjacent transition sections are provided near the tunnel entrance reinforcement section; at least two adjacent exit lighting sections are provided near the tunnel exit section;

[0013] Multiple passive solar light guides and angle-adjustable tunnel energy-saving lamps are distributed under the sunshade. The tunnel energy-saving lamps that illuminate the tunnel entrance reinforcement section are the tunnel entrance reinforcement section lighting group; the tunnel energy-saving lamps that illuminate the transition section are the transition section reinforcement lighting group; and the tunnel energy-saving lamps that illuminate the exit lighting section are the exit lighting section lighting group.

[0014] There are at least two lighting groups for the tunnel entrance reinforcement section, at least two lighting groups for the transition section reinforcement section, and at least two lighting groups for the exit lighting section.

[0015] The dimming controller is connected to the signals of the passive solar light guide and the angle-adjustable tunnel energy-saving lamp, and adjusts the brightness of the passive solar light guide and the angle-adjustable tunnel energy-saving lamp while controlling the light reflection angle of the passive solar light guide and the angle-adjustable tunnel energy-saving lamp.

[0016] Furthermore,

[0017] The tunnel entrance reinforcement section includes reinforcement section 1 and reinforcement section 2;

[0018] The transition section includes transition section 1 and transition section 2;

[0019] The exit lighting section includes exit 1 section and exit 2 section;

[0020] Reinforcement Section 1 is located at the tunnel entrance and extends into the tunnel, the first section of Reinforcement Section 2 is adjacent to the last section of Reinforcement Section 1, the first section of Transition Section 1 is adjacent to the last section of Reinforcement Section 1, the first section of Transition Section 2 is adjacent to the last section of Transition Section 1, Exit Section 2 is located at the tunnel exit and extends into the tunnel, and the last section of Exit Section 1 is adjacent to the first section of Exit Section 2.

[0021] Furthermore, when the real-time brightness outside the tunnel is greater than the brightness of the tunnel entrance reinforcement section, the brightness of the tunnel entrance reinforcement section lighting group and the transition section reinforcement lighting group are calculated according to the principle of gradual decrease. The calculation formula is as follows:

[0022] L th1 = k ×L 20 (S)

[0023] L th2 =0.5× k ×L 20 (S)

[0024] L tr1 =0.15× L th1

[0025] L tr2 =0.05× L th1

[0026] Where, L th1 To enhance the brightness of the first stage, L th2 To enhance the brightness of the 2nd stage lighting, L tr1 To transition 1 stage of lighting brightness, L tr2 To transition between 2 levels of lighting brightness; L 20 (S) is the real-time brightness outside the tunnel. k is the brightness reduction coefficient of the entrance section, ranging from 0.01 to 0.07;

[0027] The brightness of the exit lighting section lighting group is:

[0028] L ex1 =3× L in

[0029] L ex2 =5× L in

[0030] in, L ex1 The lighting brightness of the exit is level 1. L ex2 For the exit 2 lighting levels, L in The lighting brightness in the middle of the tunnel.

[0031] Furthermore, the dimming controller adopts a stepless dimming strategy for passive solar light guides and angle-adjustable tunnel energy-saving lamps. Stepless dimming means that the brightness of passive solar light guides and angle-adjustable tunnel energy-saving lamps is controlled by dimming levels according to the changes in the brightness outside the tunnel, and the control level is not less than 100 levels. The specific strategy is as follows:

[0032] P n = L n × L 20 (S) / L 20

[0033] Where: P n is the brightness of the dimming control level of each lighting segment in the tunnel, n represents the specific level number, L n Indicates the design brightness of each lighting segment, L 20 (S) is the real-time brightness outside the tunnel, L 20 To design the brightness outside the cave.

[0034] Furthermore, the principle of the dimming controller controlling the light reflection angle of the passive solar light guide and the angle-adjustable tunnel energy-saving lamp is:

[0035] For the tunnel entrance reinforcement section

[0036]

[0037] in D th1 To strengthen the length of 1 section, D th2 To strengthen the 2nd stage, D s For lighting parking sight distance, h is the clearance height in the tunnel, L 20 (S) is the real-time brightness outside the tunnel, L 20 To design the brightness outside the cave.

[0038] Strengthen the lighting group for the transition section

[0039]

[0040]

[0041] in, D tr1 is the length of transition 1, D tr2 is the length of transition 2, v t Design speed for the tunnel.

[0042] For exit lighting section

[0043] The length of Exit 1 and Exit 2 is designed to be 25 meters to 35 meters.

[0044] Furthermore, the passive solar light guide and angle-adjustable tunnel energy-saving lamp includes a bracket, a solar energy storage structure and a sunlight reflection structure. The solar energy storage structure and the sunlight reflection structure are installed on the bracket, and the sunlight reflection structure is located in front of the solar energy storage structure. The solar energy storage structure includes a solar panel and a battery, and the solar panel and the battery are connected. The sunlight reflection structure includes a folding and telescopic device for adjusting the light reflection path by changing the lens angle.

[0045] Furthermore, the solar energy storage structure also includes a PCB board and an LED lighting board, the PCB board is connected to the battery and the LED lighting board respectively, and the solar panel is connected to the battery.

[0046] Furthermore, the solar panel is placed flat on the top of the bracket, the battery and PCB board are both located inside the bracket, and the lamp beads of the LED lighting panel are located between the solar energy storage structure and the sunlight reflection structure, and are perpendicular to the solar panel.

[0047] Furthermore, the sunlight reflection structure includes a transparent plate, a first Fresnel lens, a second Fresnel lens and a folding and telescopic device. The transparent plate is located at the top and exposed on the bracket. The second Fresnel lens is arranged parallel to the LED lighting board and completely covers the front end of the lamp bead. The first Fresnel lens is located at the front end of the sunlight reflection structure. The upper end of the first Fresnel lens is connected to the front end of the transparent plate via a first connecting structure, and the lower end of the first Fresnel lens is connected to the movable end of the folding and telescopic device via a second connecting structure. Sunlight shines from above the transparent plate into the interior of the sunlight reflection structure. The sunlight is reflected by the second Fresnel lens to the first Fresnel lens, and then refracted to the outside of the lamp by the first Fresnel lens. After the lamp bead on the LED lighting board located behind the second Fresnel lens is energized, the light is also transmitted to the first Fresnel lens through the second Fresnel lens and then refracted to the outside of the lamp. The movable end of the folding and telescopic device is connected to the lower end of the first Fresnel lens, driving the tilt angle of the first Fresnel lens to change, thereby adjusting the angle of the emitted light.

[0048] Furthermore, the folding and telescopic device includes a micro motor and a threaded rod connected to the output end of the micro motor, and the second connecting structure is provided with an internal thread and is sleeved on the threaded rod.

[0049] Furthermore, the micro motor is connected to the PCB board and the battery respectively. The battery supplies power to the micro motor, and the PCB board controls the forward rotation, reverse rotation or shutdown of the micro motor.

[0050] Furthermore, the bottom of the first Fresnel lens is hinged to one end of a horizontally arranged bottom plate, the bottom of the second Fresnel lens is provided with a fixing frame, and the other end of the bottom plate passes through the fixing frame and is placed in the fixing frame.

[0051] The advantages of this application are:

[0052] 1. This application dynamically responds to the brightness inside and outside the tunnel to ensure that the driver's eyes are not affected by the rapid changes in brightness and darkness and that driving safety is affected; it introduces sunlight outside the tunnel or lighting driven by solar power generation outside the tunnel into the tunnel, saving energy consumption of lighting fixtures inside the tunnel and achieving energy conservation and carbon reduction.

[0053] 2. The present application can adjust the illumination angle of the lamps in the tunnel in real time according to the difference in light inside and outside the tunnel, thereby changing the length of the entrance reinforcement section and the transition section inside the tunnel, so that the driver can adapt to the brightness difference between the inside and outside of the tunnel. In addition, when there is no sunlight at night, the lamps of the present application can use batteries charged by sunlight during the day to achieve lighting, meeting the requirements of energy saving.

[0054] 3. The passive solar light guide and angle-adjustable tunnel energy-saving lamps of this application are installed in a tunnel shade awning, directing ambient light directly into the tunnel to achieve energy conservation and emission reduction while flexibly adjusting the lighting effect of the illuminated area. Furthermore, the illumination angle and brightness can be adjusted to achieve uniform brightness within the tunnel and eliminate zebra patterns. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 The overall schematic diagram of the system.

[0056] Figure 2 This is a schematic diagram of the structure of a passive solar light guide and angle-adjustable tunnel energy-saving lamp.

[0057] Figure 3 This is a schematic diagram of the structure of a passive solar light guide and angle-adjustable tunnel energy-saving lamp.

[0058] In the attached figure:

[0059] 1-transparent plate, 2-first connecting structure, 3-first Fresnel lens, 4-second connecting structure, 5-folding and telescopic device, 6-bottom plate, 7-micro motor, 8-PCB board, 9-battery, 10-solar panel, 11-LED lighting panel, 12-second Fresnel lens. DETAILED DESCRIPTION

[0060] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0061] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0062] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0063] In the description of the present invention, it should be noted that the terms "upper," "vertical," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use, or are commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0064] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0065] Example 1

[0066] like Figure 1 As shown, a tunnel lighting energy-saving system using tunnel shading awnings and angle-adjustable lamps includes shading awnings arranged at the entrance and exit sections of the tunnel, a dimming controller, and multiple passive solar light guides and angle-adjustable tunnel energy-saving lamps;

[0067] At least two adjacent tunnel entrance reinforcement sections are provided near the tunnel entrance section, at least two adjacent transition sections are provided near the tunnel entrance reinforcement section; at least two adjacent exit lighting sections are provided near the tunnel exit section;

[0068] Multiple passive solar light guides and angle-adjustable tunnel energy-saving lamps are distributed under the sunshade. The tunnel energy-saving lamps that illuminate the tunnel entrance reinforcement section are the tunnel entrance reinforcement section lighting group; the tunnel energy-saving lamps that illuminate the transition section are the transition section reinforcement lighting group; and the tunnel energy-saving lamps that illuminate the exit lighting section are the exit lighting section lighting group.

[0069] There are at least two groups of lighting groups for the tunnel entrance reinforcement section, and at least two groups of lighting groups for the transition section reinforcement section; there are at least two groups of lighting groups for the exit lighting section; the lighting groups for the tunnel entrance reinforcement section correspond to the number of groups of the tunnel entrance reinforcement section, and different lighting groups for the tunnel entrance reinforcement section illuminate different tunnel entrance reinforcement sections in a one-to-one correspondence; the lighting groups for the transition section reinforcement section correspond to the number of groups of the transition section, and different lighting groups for the transition section reinforcement section illuminate different transition sections in a one-to-one correspondence; the lighting groups for the exit lighting section correspond to the number of groups of the exit lighting section, and different lighting groups for the exit lighting section illuminate different exit lighting sections in a one-to-one correspondence.

[0070] The dimming controller is connected to the signals of the passive solar light guide and the angle-adjustable tunnel energy-saving lamp, and adjusts the brightness of the passive solar light guide and the angle-adjustable tunnel energy-saving lamp while controlling the light reflection angle of the passive solar light guide and the angle-adjustable tunnel energy-saving lamp.

[0071] Furthermore,

[0072] The tunnel entrance reinforcement section includes reinforcement section 1 and reinforcement section 2;

[0073] The transition section includes transition section 1 and transition section 2;

[0074] The exit lighting section includes exit 1 section and exit 2 section;

[0075] Reinforcement Section 1 is located at the tunnel entrance and extends into the tunnel, the first section of Reinforcement Section 2 is adjacent to the last section of Reinforcement Section 1, the first section of Transition Section 1 is adjacent to the last section of Reinforcement Section 1, the first section of Transition Section 2 is adjacent to the last section of Transition Section 1, Exit Section 2 is located at the tunnel exit and extends into the tunnel, and the last section of Exit Section 1 is adjacent to the first section of Exit Section 2.

[0076] When the real-time brightness outside the tunnel is greater than the brightness of the tunnel entrance reinforcement section, the brightness of the tunnel entrance reinforcement section lighting group and the transition section reinforcement lighting group are calculated according to the principle of gradual decrease. The calculation formula is as follows:

[0077] Lth1 = k ×L 20 (S)

[0078] L th2 =0.5× k ×L 20 (S)

[0079] L tr1 =0.15× L th1

[0080] L tr2 =0.05× L th1

[0081] Where, L th1 To enhance the brightness of the first stage, L th2 To enhance the brightness of the 2nd stage lighting, L tr1 To transition 1 stage of lighting brightness, L tr2 To transition between 2 levels of lighting brightness; L 20 (S) is the real-time brightness outside the tunnel, and the brightness of each section inside the tunnel is calculated in real time based on the brightness outside the tunnel. k is the brightness reduction coefficient of the entrance section, ranging from 0.01 to 0.07;

[0082] The brightness of the exit lighting section lighting group is:

[0083] L ex1 =3× L in

[0084] L ex2 =5× L in

[0085] in, L ex1 The lighting brightness of the exit is level 1. L ex2 For the exit 2 lighting levels, L in The central tunnel lighting intensity is the lighting throughout the tunnel, ensuring driving safety. The exit lighting section is installed at the tunnel entrance to accommodate the difference in brightness between inside and outside the tunnel. The determination of the central tunnel lighting intensity is well known in the art.

[0086] The dimming controller adopts a stepless dimming strategy for passive solar light guides and angle-adjustable tunnel energy-saving lamps. Stepless dimming means that the brightness of passive solar light guides and angle-adjustable tunnel energy-saving lamps is registered and dimmed in a graded manner according to the brightness outside the tunnel. The control grade is not less than 100, so as not to have a negative impact on drivers. It is also to avoid the impact of instantaneous excessive frame control on the life of the lamps and power supplies. The specific strategy is as follows:

[0087] P n = L n × L 20 (S) / L 20

[0088] Where: P n is the brightness of the dimming control level of each lighting segment in the tunnel, n represents the specific level number, L n Indicates the design brightness of each lighting segment, L 20 (S) is the real-time brightness outside the tunnel, L 20 To design the brightness outside the cave.

[0089] The principle of dimming controller controlling the light reflection angle of passive solar light guide and angle-adjustable tunnel energy-saving lamps is:

[0090] For the tunnel entrance reinforcement section

[0091]

[0092] in D th1 To strengthen the length of 1 section, D th2 To strengthen the 2nd stage, D s For lighting parking sight distance, h is the clearance height in the tunnel, L 20 (S) is the real-time brightness outside the tunnel, L 20 To design the brightness outside the tunnel; the illuminated parking sight distance is common knowledge in the field and will not be elaborated here. The length of Reinforcement Section 1 corresponds to the length of light emitted by the corresponding group of tunnel entrance reinforcement lighting groups on the tunnel road surface. The length of Reinforcement Section 2 corresponds to the length of light emitted by the corresponding group of tunnel entrance reinforcement lighting groups on the tunnel road surface. In other words, the length of light emitted by different groups of tunnel entrance reinforcement lighting groups on the ground is the length of the different tunnel entrance reinforcement sections.

[0093] Strengthen the lighting group for the transition section

[0094]

[0095]

[0096] in, D tr1 is the length of transition 1, D tr2 is the length of transition 2, v t is the design speed of the tunnel; the length of transition section 1 is consistent with the length of light emitted by a corresponding set of transition section enhanced lighting groups on the road surface in the tunnel; the length of transition section 2 is consistent with the length of light emitted by a corresponding set of transition section enhanced lighting groups on the road surface in the tunnel, that is, the length of light emitted by different sets of transition section enhanced lighting groups on the ground is the length of different transition sections.

[0097] For exit lighting section

[0098] The lengths of Exit 1 and Exit 2 are designed to be 25-35 meters. The length of Exit 1 corresponds to the length of light emitted by the corresponding exit lighting segment on the road surface within the tunnel. The length of Exit 2 corresponds to the length of light emitted by the corresponding exit lighting segment on the road surface within the tunnel. In other words, the length of light emitted by different exit lighting segments on the ground is the same as the length of the different exit lighting segments.

[0099] During the day, when sunlight is available, the solar energy storage module uses the abundant solar energy to store electricity. Simultaneously, sunlight shines through the transparent plate onto the back of the Fresnel lens, where it forms a parallel beam that is projected onto the tunnel's entrance reinforcement section. This section, located near the tunnel's exterior, minimizes the difference in brightness between inside and outside the tunnel, ensuring safe passage for drivers.

[0100] At night, when there is no natural sunlight, the energy stored by the sunlight during the day is sufficient. According to the current environment, the light source can be turned on. The light source is parallel to the Fresnel lens parallel to the lamp bead board and is emitted to the adjustable reflective structure, achieving the same effect as when exposed to sunlight during the day.

[0101] The micro motor drives the folding and retracting device to move as needed to adjust the angle of the reflected light. The micro motor is turned on or off according to the instructions of the dimming controller. The specific transmission method of the instruction information here belongs to the application of existing technology and will not be repeated here.

[0102] In several passive solar light guides and angle-adjustable energy-saving tunnel lamps, the lower end of the Fresnel lens is connected to the movable end of a folding and telescopic mechanism. Adjusting the folding and telescopic mechanism causes the lower end of the Fresnel lens to follow the slider, changing the angle between the Fresnel lens and the horizontal plane. This in turn alters the area of ​​the parallel light beam projected onto the ground through the lens. Angle adjustment can be directly initiated from the backend. As an expanded functionality, this can also be linked to other lighting devices in the tunnel. This ensures that even in conditions of high cloud cover or low sunlight, when both lighting methods are ineffective, the tunnel lighting system still operates normally, ensuring safe driving.

[0103] Example 2

[0104] like Figure 1 As shown, a tunnel lighting energy-saving system using tunnel shading awnings and angle-adjustable lamps includes shading awnings arranged at the entrance and exit sections of the tunnel, a dimming controller, and multiple passive solar light guides and angle-adjustable tunnel energy-saving lamps;

[0105] At least two adjacent tunnel entrance reinforcement sections are provided near the tunnel entrance section, at least two adjacent transition sections are provided near the tunnel entrance reinforcement section; at least two adjacent exit lighting sections are provided near the tunnel exit section;

[0106] Multiple passive solar light guides and angle-adjustable tunnel energy-saving lamps are distributed under the sunshade. The tunnel energy-saving lamps that illuminate the tunnel entrance reinforcement section are the tunnel entrance reinforcement section lighting group; the tunnel energy-saving lamps that illuminate the transition section are the transition section reinforcement lighting group; and the tunnel energy-saving lamps that illuminate the exit lighting section are the exit lighting section lighting group.

[0107] There are at least two groups of lighting groups for the tunnel entrance reinforcement section, and at least two groups of lighting groups for the transition section reinforcement section; there are at least two groups of lighting groups for the exit lighting section; the lighting groups for the tunnel entrance reinforcement section correspond to the number of groups of the tunnel entrance reinforcement section, and different lighting groups for the tunnel entrance reinforcement section illuminate different tunnel entrance reinforcement sections in a one-to-one correspondence; the lighting groups for the transition section reinforcement section correspond to the number of groups of the transition section, and different lighting groups for the transition section reinforcement section illuminate different transition sections in a one-to-one correspondence; the lighting groups for the exit lighting section correspond to the number of groups of the exit lighting section, and different lighting groups for the exit lighting section illuminate different exit lighting sections in a one-to-one correspondence.

[0108] The dimming controller is connected to the signals of the passive solar light guide and the angle-adjustable tunnel energy-saving lamp, and adjusts the brightness of the passive solar light guide and the angle-adjustable tunnel energy-saving lamp while controlling the light reflection angle of the passive solar light guide and the angle-adjustable tunnel energy-saving lamp.

[0109] The tunnel entrance reinforcement section includes reinforcement section 1 and reinforcement section 2;

[0110] The transition section includes transition section 1 and transition section 2;

[0111] The exit lighting section includes exit 1 section and exit 2 section;

[0112] Reinforcement Section 1 is located at the tunnel entrance and extends into the tunnel, the first section of Reinforcement Section 2 is adjacent to the last section of Reinforcement Section 1, the first section of Transition Section 1 is adjacent to the last section of Reinforcement Section 1, the first section of Transition Section 2 is adjacent to the last section of Transition Section 1, Exit Section 2 is located at the tunnel exit and extends into the tunnel, and the last section of Exit Section 1 is adjacent to the first section of Exit Section 2.

[0113] When the real-time brightness outside the tunnel is greater than the brightness of the tunnel entrance reinforcement section, the brightness of the tunnel entrance reinforcement section lighting group and the transition section reinforcement lighting group are calculated according to the principle of gradual decrease. The calculation formula is as follows:

[0114] L th1 = k ×L 20 (S)

[0115] L th2 =0.5× k ×L 20 (S)

[0116] L tr1 =0.15× L th1

[0117] L tr2 =0.05× L th1

[0118] Where, L th1 To enhance the brightness of the first stage, L th2 To enhance the brightness of the 2nd stage lighting, L tr1 To transition 1 stage of lighting brightness, L tr2 To transition between 2 levels of lighting brightness; L 20 (S) is the real-time brightness outside the tunnel, and the brightness of each section inside the tunnel is calculated in real time based on the brightness outside the tunnel. k is the brightness reduction coefficient of the entrance section, ranging from 0.01 to 0.07;

[0119] The brightness of the exit lighting section lighting group is:

[0120] L ex1 =3× L in

[0121] L ex2 =5× L in

[0122] in, L ex1 The lighting brightness of the exit is level 1. L ex2 For the exit 2 lighting levels, L in The central tunnel lighting intensity is the lighting throughout the tunnel, ensuring driving safety. The exit lighting section is installed at the tunnel entrance to accommodate the difference in brightness between inside and outside the tunnel. The determination of the central tunnel lighting intensity is well known in the art.

[0123] The dimming controller adopts a stepless dimming strategy for passive solar light guides and angle-adjustable tunnel energy-saving lamps. Stepless dimming means that the brightness of passive solar light guides and angle-adjustable tunnel energy-saving lamps is registered and dimmed in a graded manner according to the brightness outside the tunnel. The control grade is not less than 100, so as not to have a negative impact on drivers. It is also to avoid the impact of instantaneous excessive frame control on the life of the lamps and power supplies. The specific strategy is as follows:

[0124] P n = L n × L 20 (S) / L 20

[0125] Where: P n is the brightness of the dimming control level of each lighting segment in the tunnel, n represents the specific level number, L n Indicates the design brightness of each lighting segment, L 20 (S) is the real-time brightness outside the tunnel, L 20 To design the brightness outside the cave.

[0126] The principle of dimming controller controlling the light reflection angle of passive solar light guide and angle-adjustable tunnel energy-saving lamps is:

[0127] For the tunnel entrance reinforcement section

[0128]

[0129] in D th1 To strengthen the length of 1 section, D th2 To strengthen the 2nd stage, D s For lighting parking sight distance, h is the clearance height in the tunnel, L 20 (S) is the real-time brightness outside the tunnel, L 20 To design the brightness outside the tunnel; the illuminated parking sight distance is common knowledge in the field and will not be elaborated here. The length of Reinforcement Section 1 corresponds to the length of light emitted by the corresponding group of tunnel entrance reinforcement lighting groups on the tunnel road surface. The length of Reinforcement Section 2 corresponds to the length of light emitted by the corresponding group of tunnel entrance reinforcement lighting groups on the tunnel road surface. In other words, the length of light emitted by different groups of tunnel entrance reinforcement lighting groups on the ground is the length of the different tunnel entrance reinforcement sections.

[0130] Strengthen the lighting group for the transition section

[0131]

[0132]

[0133] in, D tr1 is the length of transition 1, D tr2 is the length of transition 2, v t is the design speed of the tunnel; the length of transition section 1 is consistent with the length of light emitted by a corresponding set of transition section enhanced lighting groups on the road surface in the tunnel; the length of transition section 2 is consistent with the length of light emitted by a corresponding set of transition section enhanced lighting groups on the road surface in the tunnel, that is, the length of light emitted by different sets of transition section enhanced lighting groups on the ground is the length of different transition sections.

[0134] For exit lighting section

[0135] The lengths of Exit 1 and Exit 2 are designed to be 25-35 meters. The length of Exit 1 corresponds to the length of light emitted by the corresponding exit lighting segment on the road surface within the tunnel. The length of Exit 2 corresponds to the length of light emitted by the corresponding exit lighting segment on the road surface within the tunnel. In other words, the length of light emitted by different exit lighting segments on the ground is the same as the length of the different exit lighting segments.

[0136] like Figure 2 and Figure 3As shown, in this embodiment, the passive solar light guide and angle-adjustable tunnel energy-saving lamp includes a bracket, a solar energy storage structure and a sunlight reflection structure. The solar energy storage structure and the sunlight reflection structure are mounted on the bracket, and the sunlight reflection structure is located in front of the solar energy storage structure. The solar energy storage structure includes a solar panel 10 and a battery 9, and the solar panel 10 and the battery 9 are connected. The sunlight reflection structure includes a folding and telescopic device 5 for adjusting the light reflection path by changing the lens angle.

[0137] The solar energy storage structure also includes a PCB board 8 and an LED lighting board 11. The PCB board 8 is connected to a battery 9 and the LED lighting board 11, respectively. The solar panel 10 is also connected to the battery 9. After receiving sunlight, the solar panel 10 transfers energy to the battery 9 for storage. The battery 9 transmits the electrical energy to the LED lighting board 11 through the PCB board 8, thereby providing lighting for the lamp.

[0138] The solar panel 10 rests flat on top of the bracket, while the battery 9 and PCB 8 are located inside the bracket. The LED lighting panel 11's lamps are positioned between the solar energy storage structure and the sunlight reflection structure, perpendicular to the solar panel 10. The LED lighting panel 11's perpendicular position allows for diagonal light to be directed into the tunnel. The LED lighting panel 11 has multiple lamps, each oriented in a consistent direction. The PCB 8 is a circuit board known to those skilled in the art that controls the battery 9 to power the LED lighting panel 11. This patent does not limit its specific model.

[0139] The sunlight reflection structure includes a transparent plate 1, a first Fresnel lens 3, a second Fresnel lens 12 and a folding and telescopic device 5. The transparent plate 1 is located at the top and exposed on the bracket. The second Fresnel lens 12 is arranged parallel to the LED lighting board 11 and completely covers the front end of the lamp bead. The first Fresnel lens 3 is located at the front end of the sunlight reflection structure. The upper end of the first Fresnel lens 3 is connected to the front end of the transparent plate 1 through the first connecting structure 2. The lower end of the first Fresnel lens 3 is connected to the movable end of the folding and telescopic device 5 through the second connecting structure 4. The sunlight is reflected from the top of the transparent plate 1. The sunlight enters the interior of the sunlight reflection structure and is reflected by the second Fresnel lens 12 to the first Fresnel lens 3. The first Fresnel lens 3 then refracts the sunlight to the outside of the lamp. The light from the lamp beads on the LED lighting board 11 located behind the second Fresnel lens 12 after being energized is also transmitted to the first Fresnel lens 3 through the second Fresnel lens 12 and then refracted to the outside of the lamp. The movable end of the folding and telescopic device 5 is connected to the lower end of the first Fresnel lens 3, driving the tilt angle of the first Fresnel lens 3 to change, thereby adjusting the angle of the emitted light.

[0140] The first connection structure 2 is a hinge structure.

[0141] The folding and telescoping device 5 includes a micromotor 7 and a threaded rod connected to the output end of the micromotor 7. The second connecting structure 4 is internally threaded and sleeved onto the threaded rod. The second connecting structure 4 can be a conventional structure in the art that converts rotational motion into linear motion. For example, a housing, bearings, and internal threads can be used to achieve the effect that when the threaded rod rotates forward and backward, the second connecting structure 4 moves forward and backward within its threaded section. This will not be described in detail here.

[0142] Micromotor 7 is connected to PCB 8 and battery 9, respectively. Battery 9 provides power to micromotor 7, while PCB 8 controls forward, reverse, or off rotation of micromotor 7. The functionality of PCB 8 is well known to those skilled in the art and is not part of the present invention.

[0143] The bottom of the first Fresnel lens 3 is hinged to one end of a horizontally positioned bottom plate 6. A fixed frame is provided at the bottom of the second Fresnel lens 12, and the other end of the bottom plate 6 passes through and is positioned within the fixed frame. The bottom plate 6 seals the space between the two lenses. When the bottom of the first Fresnel lens 3 is driven forward or backward by the threaded rod, the bottom plate 6 is also driven to move horizontally back and forth. Because one end of the bottom plate 6 is hinged to the first Fresnel lens 3 and the other end is positioned within the fixed frame, the bottom plate 6 remains horizontal regardless of forward or backward movement.

[0144] During the day, when sunlight is available, the solar energy storage module uses the abundant solar energy to store electricity. Simultaneously, sunlight shines through the transparent plate onto the back of the Fresnel lens, where it forms a parallel beam that is projected onto the tunnel's entrance reinforcement section. This section, located near the tunnel's exterior, minimizes the difference in brightness between inside and outside the tunnel, ensuring safe passage for drivers.

[0145] At night, when there is no natural sunlight, the energy stored by the sunlight during the day is sufficient. According to the current environment, the light source can be turned on. The light source is parallel to the Fresnel lens parallel to the lamp bead board and is emitted to the adjustable reflective structure, achieving the same effect as when exposed to sunlight during the day.

[0146] The micro motor drives the folding and retracting device to move as needed to adjust the angle of the reflected light. The micro motor is turned on or off according to the instructions of the dimming controller. The specific transmission method of the instruction information here belongs to the application of existing technology and will not be repeated here.

[0147] In several passive solar light guides and angle-adjustable energy-saving tunnel lamps, the lower end of the Fresnel lens is connected to the movable end of a folding and telescopic mechanism. Adjusting the folding and telescopic mechanism causes the lower end of the Fresnel lens to follow the slider, changing the angle between the Fresnel lens and the horizontal plane. This in turn alters the area of ​​the parallel light beam projected onto the ground through the lens. Angle adjustment can be directly initiated from the backend. As an expanded functionality, this can also be linked to other lighting devices in the tunnel. This ensures that even in conditions of high cloud cover or low sunlight, when both lighting methods are ineffective, the tunnel lighting system still operates normally, ensuring safe driving.

[0148] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A tunnel lighting energy-saving system using a tunnel sunshade and adjustable-angle lamps, characterized by: It includes light-shielding awnings, dimming controllers, multiple passive solar light guides, and angle-adjustable tunnel energy-saving lamps installed at the tunnel entrance and exit sections; At least two adjacent tunnel entrance reinforcement sections are provided at the entrance section of the tunnel; at least two adjacent exit lighting sections are provided at the exit section of the tunnel; The tunnel entrance reinforcement section includes at least reinforcement section 1 and reinforcement section 2; the exit lighting section includes at least exit section 1 and exit section 2; Multiple passive solar light guides and angle-adjustable tunnel energy-saving lamps are distributed under the sunshade. The tunnel energy-saving lamps that illuminate the tunnel entrance reinforcement section are the tunnel entrance reinforcement section lighting group; the tunnel energy-saving lamps that illuminate the exit lighting section are the exit lighting section lighting group. There are at least two lighting groups for the tunnel entrance reinforcement section; The exit lighting section lighting groups are at least two groups; The dimming controller is connected to the signals of the passive solar light guide and the angle-adjustable tunnel energy-saving lamp, and adjusts the brightness of the passive solar light guide and the angle-adjustable tunnel energy-saving lamp while controlling the light reflection angle of the passive solar light guide and the angle-adjustable tunnel energy-saving lamp; A passive solar light guide and angle-adjustable tunnel energy-saving lamp comprises a bracket, a solar energy storage structure and a sunlight reflection structure, wherein the solar energy storage structure and the sunlight reflection structure are mounted on the bracket, and the sunlight reflection structure is located in front of the solar energy storage structure, the solar energy storage structure comprises a solar panel (10) and a storage battery (9), the solar panel (10) and the storage battery (9) are connected, and the sunlight reflection structure comprises a folding and telescopic device (5) for adjusting the light reflection path by changing the lens angle; The sunlight reflection structure comprises a transparent plate (1), a first Fresnel lens (3), a second Fresnel lens (12) and a folding and telescopic device (5), wherein the transparent plate (1) is located at the top and exposed on the bracket, and the second Fresnel lens (12) is arranged in parallel with the LED lighting plate (11) and completely covers the front end of the lamp bead; the first Fresnel lens (3) is located at the front end of the sunlight reflection structure, the upper end of the first Fresnel lens (3) is connected to the front end of the transparent plate (1) through a first connecting structure (2), and the lower end of the first Fresnel lens (3) is connected to the movable end of the folding and telescopic device (5) through a second connecting structure (4). 1) enters the interior of the sunlight reflection structure, is reflected by the second Fresnel lens (12), and is reflected to the first Fresnel lens (3), and is then refracted to the outside of the lamp by the first Fresnel lens (3). After the light from the lamp beads on the LED lighting board (11) located behind the second Fresnel lens (12) is energized, it is also transmitted to the first Fresnel lens (3) through the second Fresnel lens (12), and is then refracted to the outside of the lamp. The movable end of the folding and telescopic device (5) is connected to the lower end of the first Fresnel lens (3), driving the tilt angle of the first Fresnel lens (3) to change, thereby adjusting the angle of the emitted light.

2. The tunnel lighting energy-saving system using a tunnel sunshade and an adjustable-angle lamp according to claim 1, characterized in that: At least two adjacent transition sections are arranged near the tunnel entrance reinforcement section in the tunnel; the transition sections include at least transition section 1 and transition section 2; multiple passive solar light guides and angle-adjustable tunnel energy-saving lamps are distributed under the sunshade, and the tunnel energy-saving lamps that illuminate the transition sections are the transition section reinforcement lighting groups; there are at least two transition section reinforcement lighting groups.

3. The tunnel lighting energy-saving system using a tunnel sunshade and an adjustable-angle lamp according to claim 1, characterized in that: When the real-time brightness outside the tunnel is greater than the brightness of the tunnel entrance reinforcement section, the brightness of the tunnel entrance reinforcement section lighting group is calculated according to the principle of gradual decrease. The calculation formula is as follows: L th1 = k ×L 20 (S) L th2 =0.5× k ×L 20 (S) Where, L th1 To enhance the brightness of the first stage, L th2 To enhance the brightness of the 2nd stage lighting, L 20 (S) is the real-time brightness outside the tunnel, k is the brightness reduction coefficient of the entrance section, ranging from 0.01 to 0.07; The brightness of the exit lighting section lighting group is: L ex1 =3× L in L ex2 =5× L in Where, L ex1 The lighting brightness of the exit is level 1. L ex2 For the exit 2 lighting levels, L in The lighting brightness in the middle of the tunnel.

4. The tunnel lighting energy-saving system using a tunnel sunshade and an adjustable-angle lamp according to claim 2, characterized in that: When the real-time brightness outside the tunnel is greater than the brightness of the enhanced section at the tunnel entrance, the brightness of the enhanced lighting group in the transition section is calculated according to the principle of gradual decrease. The calculation formula is as follows: L tr1 =0.15× L th1 L tr2 =0.05× L th1 Where, L tr1 To transition 1 stage of lighting brightness, L tr2 It is the transition between 2 levels of lighting brightness.

5. The tunnel lighting energy-saving system using a tunnel sunshade and an adjustable-angle lamp according to claim 1, characterized in that: The dimming controller adopts a stepless dimming strategy for passive solar light guides and angle-adjustable tunnel energy-saving lamps. Stepless dimming means that the brightness level of passive solar light guides and angle-adjustable tunnel energy-saving lamps is dimmed and controlled in a graded manner as the brightness outside the tunnel changes, and the control grade is not less than 100 levels. The specific strategy is as follows: P n = L n × L 20 (S) / L 20 Where: P n is the brightness of the dimming control level of each lighting segment in the tunnel, n represents the specific level number, L n Indicates the design brightness of each lighting segment, L 20 (S) is the real-time brightness outside the tunnel, L 20 To design the brightness outside the cave.

6. The tunnel lighting energy-saving system using a tunnel sunshade and an adjustable-angle lamp according to claim 2, characterized in that: The principle of dimming controller controlling the light reflection angle of passive solar light guide and angle-adjustable tunnel energy-saving lamps is: For the tunnel entrance reinforcement section in D th1 To strengthen the length of 1 section, D th2 To strengthen the 2nd stage, D s For lighting parking sight distance, h is the clearance height in the tunnel, L 20 (S) is the real-time brightness outside the tunnel, L 20 To design the brightness outside the cave; Strengthen the lighting group for the transition section in, D tr1 is the length of transition 1, D tr2 is the length of transition 2, v t Design speed for the tunnel; For exit lighting section The length of Exit 1 and Exit 2 is designed to be 25 meters to 35 meters.

7. The tunnel lighting energy-saving system using a tunnel sunshade and an adjustable-angle lamp according to claim 1, characterized in that: The solar energy storage structure further comprises a PCB board (8) and an LED lighting board (11), wherein the PCB board (8) is connected to the storage battery (9) and the LED lighting board (11), respectively, and the solar panel (10) is connected to the storage battery (9); The solar panel (10) is placed flat on the top of the bracket, the battery (9) and the PCB board (8) are both located inside the bracket, and the lamp beads of the LED lighting panel (11) are located between the solar energy storage structure and the sunlight reflection structure, and are perpendicular to the solar panel (10).

8. The tunnel lighting energy-saving system using a tunnel sunshade and an adjustable-angle lamp according to claim 1, characterized in that: The folding and telescopic device (5) comprises a micro motor (7) and a threaded rod connected to the output end of the micro motor (7); the second connecting structure (4) is provided with an internal thread and is sleeved on the threaded rod; The micro motor (7) is connected to the PCB board (8) and the battery (9) respectively. The battery (9) supplies power to the micro motor (7), and the PCB board (8) controls the forward rotation, reverse rotation or shutdown of the micro motor (7). The bottom of the first Fresnel lens (3) is hinged to one end of a horizontally arranged bottom plate (6), and the bottom of the second Fresnel lens (12) is provided with a fixed frame, and the other end of the bottom plate (6) passes through the fixed frame and is placed in the fixed frame.

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