Active sensing type intelligent sunlight illumination light scattering device and method for tunnel operation and maintenance

Abstract

The invention relates to the field of tunnel sunlight illumination control, in particular to an active sensing type intelligent sunlight illumination light scattering device and method for tunnel operation and maintenance, and the device comprises a light guide reflective light diffuser and an intelligent sliding track system disposed at the top of the light guide reflective light diffuser. The light guide reflective diffuser comprises a light diffusion supporting plate and a road surface brightness sensor; compared with an equidistant installation method of a traditional tunnel illumination system, the position, the angle and the height of the light guide reflective diffuser can be actively adjusted in real time according to the actual required illumination requirement of each section in the tunnel, the actual situation of the region where the tunnel is located and the actual design and use situation of the tunnel, so that accurate adjustment of sunlight in the tunnel is achieved, and the tunnel illumination effect is improved. The illumination intensity is uniformly distributed, the uniformity and continuity of the illumination effect are ensured, the comfort level is enhanced, the visibility is improved, a driver can more accurately judge the road condition under uniform illumination, potential safety hazards in a tunnel are reduced, and a better driving environment is provided for the driver.

Description

Technical Field

[0001] The present invention relates to the field of tunnel sunlight lighting control, and in particular to an intelligent sunlight lighting scattering device and method for active sensing tunnel operation and maintenance. Background Art

[0002] At present, tunnel lighting technology mainly relies on traditional electric lighting systems or solar light guide lighting systems. In these systems, lighting equipment is usually installed at equal distances. However, this installation method is prone to uneven lighting areas in practical applications, especially between adjacent lighting equipment, where there is often light overlap or lighting blank areas. This leads to uneven distribution of light intensity in the tunnel, resulting in obvious changes in light and dark, which seriously affects the driver's visual perception and causes the "zebra effect" or glare effect. These visual phenomena can cause visual illusions and distraction of the driver, thereby increasing the risk of misjudging the position and speed of objects, and significantly increasing the probability of traffic accidents. Therefore, it is crucial to optimize the tunnel lighting design to reduce the contrast between light and dark to ensure the safety of vehicles and pedestrians.

[0003] At the same time, the existing dimming lighting system can adjust the light intensity, but most systems are limited to adjusting the brightness and do not solve the problem of lighting area distribution. More importantly, the existing system is difficult to adjust the lighting range in real time according to external lighting conditions. Therefore, the uniformity of lighting is still not effectively guaranteed, and it is impossible to meet the flexibility and dynamism of different lighting needs in the tunnel. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an intelligent sunlight lighting scattering device and method for active sensing tunnel operation and maintenance, which solves the technical problem in the prior art that the scattering equipment cannot be adjusted according to the real-time sunlight angle and intensity, resulting in a general effect of improving the tunnel brightness.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An intelligent sunlight lighting astigmatism device and method for active sensing tunnel operation and maintenance, comprising a light-guiding reflective diffuser and an intelligent sliding track system arranged on the top of the light-guiding reflective diffuser, wherein the light-guiding reflective diffuser comprises a astigmatism support plate, a astigmatism component is provided at the bottom of the astigmatism support plate, and the astigmatism component is used to scatter light in the tunnel; the intelligent sliding track system comprises a sliding track, a sliding component is provided at the bottom of the sliding track, an adjustable support component is provided between the sliding component and the astigmatism support plate, and the adjustable support component is used to adjust the horizontal height and inclination angle of the astigmatism support plate; the sliding component drives the astigmatism support plate to move through the adjustable support component, a road surface brightness sensor is provided at one end of the astigmatism support plate, and the road surface brightness sensor is used to collect road surface brightness information; an intelligent control module is provided on one side of the sliding component, and the intelligent control module is used to control the position and angle of the astigmatism component according to the road surface brightness information.

[0007] Specifically, the light diffusion component includes a reflective diffusion plate, the reflective diffusion plate is fixedly arranged at the bottom of the scattering lens group, and the bottom of the reflective diffusion plate is fixedly connected to the scattering lens group.

[0008] Specifically, the sliding assembly includes a track moving unit, a plurality of limiting members are fixedly provided at the top of the track moving unit, a pulley is provided inside the limiting member, the pulley is rotatably connected to the track moving unit, and the side wall of the pulley is consistent with the sliding track.

[0009] Specifically, a rack is provided on the inner wall of the sliding track, a gear moving assembly is fixedly provided on the top of the track moving unit, a gear is provided on the top of the gear moving assembly, the gear and the rack are meshed, the gear moving assembly is used to drive the gear to rotate, and a locking assembly is provided on the top of the track moving unit, and the locking assembly is used to limit the movement of the track moving unit.

[0010] Specifically, the adjustable support assembly includes a telescopic bracket, which is used to adjust the horizontal height of the astigmatism support plate. The telescopic bracket is fixedly arranged at the bottom end of the track moving unit. An angle adjustment assembly is provided at the bottom of the telescopic bracket, and the angle adjustment assembly is used to adjust the inclination angle of the astigmatism support plate.

[0011] The present invention also proposes a control method for an active sensing type intelligent sunlight lighting diffusing device for tunnel operation and maintenance, which specifically comprises the following steps:

[0012] S1. Divide the tunnel into two entrance sections, two sets of connecting sections and an intermediate section, and calculate their lengths;

[0013] S2. Obtain the external sunlight intensity L at the tunnel entrance 20 (S), and judge the external sunlight intensity L20 (S) whether it is 0;

[0014] If yes, it enters sleep mode;

[0015] If not, proceed to step S3;

[0016] S3. Calculate the actual required lighting intensity E for each transition section i ;

[0017] S4. Obtain road surface brightness information according to the road surface brightness sensor, and adjust the horizontal position, horizontal height and inclination angle of the astigmatism support plate according to the road surface brightness.

[0018] Specifically, in step S1, the following steps are specifically included:

[0019] S11. Obtaining the illuminated parking sight distance D s , and according to the lighting parking sight distance D s Length of inlet section D th，i The calculation formula is:

[0020]

[0021] In the formula, h b Indicates the clear height of the tunnel entrance;

[0022] S12, divide the connecting section into transition section 1, transition section 2 and transition section 3, and obtain the design speed v of the tunnel t , calculate the length D of each transition segment tr，i , and its calculation formula is as follows:

[0023]

[0024] Where D tr，1 , D tr，2 and D tr，3 Respectively represent the lengths of transition section 1, transition section 2 and transition section 3;

[0025] S13. The section between two groups of transition sections in the tunnel is the middle section.

[0026] Specifically, in step S3, the following steps are specifically included:

[0027] S31, according to the external sunlight intensity L 20 (S) Calculate the first required lighting intensity of the entrance section, the calculation formula is:

[0028] L th，1 = k × L 20 (S)

[0029] L th，2=0.5×k×L 20 (S)

[0030] Where, L th，1 and L th，2 They represent the first required lighting intensity of the two entrance sections respectively; k represents the brightness reduction coefficient of the entrance section;

[0031] S32, according to L th，1 and L th，2 Calculate the second required lighting intensity L for each transition segment tr，i , and its calculation formula is:

[0032] L tr，1 =0.15×L th，i

[0033] L tr，2 =0.05×L th，i

[0034] L tr，3 =0.15×L th，i

[0035] Where, L tr，1 , L tr，2 and L tr，3 Respectively represent the second required lighting intensities corresponding to the transition section 1, the transition section 2 and the transition section 3 close to one of the entrance sections;

[0036] S33, the second required lighting intensity L tr，i Converted into actual required lighting intensity E i , and its calculation formula is:

[0037] E i =c×L tr，i

[0038] Where c is the conversion factor; L tr，i Indicates the second required lighting intensity corresponding to the transition section.

[0039] Specifically, in step S4, the following steps are specifically included:

[0040] S41, preset brightness range;

[0041] S42, determining whether the difference between the road surface brightness information obtained by two road surface brightness sensors at adjacent positions is within the brightness range;

[0042] If so, then end;

[0043] If not, proceed to step S43;

[0044] S43, calculating the moving distance S of the nth track moving unit in the tunnel according to the information of the horizontal position, horizontal height and inclination angle of the adjacent astigmatism support plate n , and its calculation formula is:

[0045]

[0046] In the formula, when S n When it is a positive number, the nth light guide reflective diffuser moves forward, S n When it is a negative number, the nth light guide reflective diffuser moves backward; n and x n-1 represents the distances of the n-1th and n-th astigmatism support plates from one end of the tunnel; L represents the length of the astigmatism support plate; β and β represent the angles between the n-1th and n-th astigmatism support plates and the horizontal plane; γ represents the angle between the rear boundary light scattered by the n-1th astigmatism support plate and the road surface normal; h represents the angle between the rear boundary light scattered by the n-1th astigmatism support plate and the road surface normal; n-1 and h n denote the heights of the n-1th and nth astigmatism support plates respectively; ω denotes the angle between the front boundary light scattered by the nth astigmatism support plate and the road surface normal;

[0047] S44, calculating the adjustment angle θ of the nth astigmatism support plate n , and its calculation formula is:

[0048]

[0049] In the formula, E 测 represents the road brightness information at the position corresponding to the nth astigmatism support plate obtained by the road brightness sensor; E i，n Indicates the actual required illumination intensity at the position corresponding to the nth astigmatism support plate;

[0050] S45, calculating the adjustment height Δh of the nth astigmatism support plate, and the calculation formula is:

[0051]

[0052] Wherein, when △h is a positive number, the nth light guide reflective diffuser moves upward, and when △h is a negative number, the nth light guide reflective diffuser moves downward;

[0053] S46, according to the moving distance S n 、Adjust the angle θ n and adjusting height Δh to adjust the horizontal position, horizontal height and tilt angle of the astigmatism support plate respectively.

[0054] Compared with the prior art, the present invention provides an active sensing type intelligent sunlight lighting scattering device and method for tunnel operation and maintenance, which has the following beneficial effects:

[0055] 1. Compared with the equidistant installation method of the traditional tunnel lighting system, the present invention can adjust the position, angle and height of the light-guide reflective diffuser in real time according to the actual lighting requirements of each section in the tunnel, the actual situation of the area where the tunnel is located and the actual design and use of the tunnel by combining the light-guide reflective diffuser and the intelligent sliding track system, thereby realizing precise adjustment of sunlight in the tunnel, making the light intensity evenly distributed, ensuring the uniformity and continuity of the lighting effect, avoiding the "zebra effect" of the driver caused by the change of light brightness when the lighting facilities are installed at equal intervals, enhancing comfort and improving visibility, enabling the driver to judge the road condition more accurately under uniform lighting, reducing the safety hazards in the tunnel, and providing a better driving environment for the driver.

[0056] 2. The present invention uses the real-time data actively collected by the road brightness sensor to independently judge and adjust through the intelligent control module to achieve true "lighting on demand". Compared with traditional manual adjustment or preset lighting methods, the present invention has a high degree of automation and can be adjusted in real time according to changes in lighting conditions inside and outside the tunnel without human intervention. Especially when there are different lighting requirements in different areas of the tunnel, the system can automatically adjust the position, angle and height of the light-guiding reflective diffuser so that the light intensity in different areas meets the actual requirements, thereby maximizing the efficiency of sunlight use.

[0057] 3. The present invention adopts a multiple protection design, including a vibration suppression device, a locking device, etc., to ensure that the lighting system can operate stably even under vibration and external interference caused by high-speed vehicles in the tunnel. The intelligent sliding track and precise positioning system greatly improve the movement accuracy of the light-guiding reflective diffuser in the tunnel, avoiding the impact of mechanical failures on the system operation and ensuring the reliability of the system in long-term use.

[0058] 4. The present invention can achieve uniform lighting of the road surface in the tunnel by accurately adjusting the angle and position of the light-guiding reflective diffuser and combining the real-time data collection and feedback mechanism of the intelligent control module. The system does not need to rely on traditional electric lighting for supplementary lighting, reduces dependence on electric power resources, conforms to the development concept of green environmental protection, greatly promotes the application of solar lighting technology in tunnel construction, and effectively improves the energy efficiency and sustainability of tunnel lighting.

[0059] 5. Through system integration design, compared with traditional electric lighting and other solar light guide lighting systems, the present invention does not require frequent adjustments and high-intensity maintenance, significantly reduces operating costs, and extends the service life of lighting equipment, ensuring the long-term stability and low-cost operation of the tunnel lighting system, and facilitating tunnel operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0061] Figure 1 It is a structural schematic diagram of the active sensing type intelligent sunlight lighting and diffusing device for tunnel operation and maintenance of the present invention;

[0062] Figure 2 It is a structural schematic diagram of the light-guiding reflective diffuser and the adjustable support assembly of the present invention;

[0063] Figure 3 It is a structural schematic diagram of the road surface brightness sensor of the present invention;

[0064] Figure 4 It is a schematic diagram of sunlight scattering in a tunnel of the present invention;

[0065] Figure 5 This is a flow chart of a control method of an active sensing type intelligent sunlight lighting diffusing device for tunnel operation and maintenance according to the present invention.

[0066] In the figure: 1, light-guiding reflective diffuser; 11, scattering lens group; 12, reflective diffuser; 13, astigmatism support plate;

[0067] 2. Intelligent sliding track system; 21. Sliding track; 22. Track moving unit; 23. Pulley; 24. Locking assembly; 25. Gear moving assembly;

[0068] 3. Adjustable support assembly; 31. Telescopic bracket; 32. Angle adjustment assembly;

[0069] 4. Road brightness sensor;

[0070] 5. Intelligent control module. DETAILED DESCRIPTION

[0071] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0072] Tunnel lighting plays a vital role in ensuring traffic safety and improving road traffic capacity. Reasonable lighting design can not only improve the visual environment inside the tunnel and reduce the driver's visual fatigue, but also effectively improve the tunnel's traffic efficiency, especially at the entrance and exit of the tunnel. Good lighting design is particularly important for alleviating the "black and white hole effect". Moreover, good transition lighting helps improve the driver's ability to adapt to the environment and avoid traffic accidents caused by poor visual adaptation. Therefore, how to achieve uniform distribution of light in the tunnel and ensure that the driver can clearly judge the road conditions has become a key issue in tunnel lighting design.

[0073] At present, tunnel lighting technology mainly relies on traditional electric lighting systems or solar light guide lighting systems. In these systems, lighting equipment is usually installed at equal distances. However, this installation method is prone to uneven lighting areas in practical applications, especially between adjacent lighting equipment, where there is often light overlap or lighting blank areas. This leads to uneven distribution of light intensity in the tunnel, resulting in obvious changes in light and dark, which seriously affects the driver's visual perception and causes the "zebra effect" or glare effect. These visual phenomena can cause visual illusions and distraction of the driver, thereby increasing the risk of misjudging the position and speed of objects, and significantly increasing the probability of traffic accidents. Therefore, it is crucial to optimize the tunnel lighting design to reduce the contrast between light and dark to ensure the safety of vehicles and pedestrians.

[0074] At the same time, the existing dimming lighting system can adjust the light intensity, but most systems are limited to adjusting the brightness and do not solve the problem of lighting area distribution. More importantly, the existing system is difficult to adjust the lighting range in real time according to external lighting conditions. Therefore, the uniformity of lighting is still not effectively guaranteed, and it is impossible to meet the flexibility and dynamism of different lighting needs in the tunnel.

[0075] In order to solve the above problems, Figure 1-3 As shown, the present invention proposes an active sensing type intelligent sunlight lighting diffuser for tunnel operation and maintenance, including a light-guiding reflective diffuser 1 and an intelligent sliding track system 2 arranged on the top of the light-guiding reflective diffuser 1; specifically, since the angle and intensity of sunlight in the tunnel will change with time and weather, in order to achieve uniform distribution of light in the tunnel, the light-guiding reflective diffuser 1 needs to be adjusted with the angle and intensity of sunlight.

[0076] The light-guiding reflective diffuser 1 includes a diffuser support plate 13, and a diffuser component is provided at the bottom of the diffuser support plate 13, and the diffuser component is used to scatter the light in the tunnel; specifically, when the diffuser component reflects the sunlight in the tunnel, it is necessary to make the light intensity of each irradiated position evenly distributed. For this purpose, the diffuser component includes a reflective diffuser plate 12, and the reflective diffuser plate 12 is fixedly arranged at the bottom of the scattering lens group 11, and the bottom of the reflective diffuser plate 12 is fixedly connected to the scattering lens group 11; specifically, the diffuser support plate 13 is used to support the reflective diffuser plate 12, determine the position of the reflective diffuser plate 12 and drive the reflective diffuser plate 12 to move, the reflective diffuser plate 12 is used to reflect the sunlight in the tunnel, and the diffuser support plate 13 is used to scatter the sunlight reflected by the reflective diffuser plate 12. It should be noted that the surface of the scattering lens group 11 is covered with a layer of silicon protective film.

[0077] The intelligent sliding track system 2 includes a sliding track 21, and a sliding component is provided at the bottom of the sliding track 21; specifically, since the position of sunlight in the tunnel will be offset to a certain extent, the position of the astigmatism component needs to be adjusted, and for this purpose, the sliding component includes a track moving unit 22, and a plurality of limiting members are fixedly provided at the top of the track moving unit 22, and a pulley 23 is provided inside the limiting member, and the pulley 23 is rotatably connected to the track moving unit 22, and the side wall of the pulley 23 is consistent with the sliding track 21; specifically, a plurality of pulleys 23 are consistent with the sliding track 21 from both sides of the sliding track 21, and the pulley 23 and the track moving unit 22 rotate, thereby completing the limitation of the position of the track moving unit 22, preventing the track moving unit 22 from falling off from the bottom of the sliding track 21, and the cooperation of the pulley 23 and the sliding track 21 can make the track moving unit 22 move at the bottom of the sliding track 21.

[0078] In addition, a rack is provided on the inner wall of the sliding track 21, and a gear moving assembly 25 is fixedly provided on the top of the track moving unit 22. A gear is provided on the top of the gear moving assembly 25, and the gear and the rack are meshed. The gear moving assembly 25 is used to drive the gear to rotate. A locking assembly 24 is provided on the top of the track moving unit 22, and the locking assembly 24 is used to limit the movement of the track moving unit 22; specifically, when it is necessary to move the astigmatism support plate 13, the gear moving assembly 25 drives the gear to rotate, and the gear moves the gear moving assembly 25 by cooperating with the rack, thereby driving the track moving unit 22 and the astigmatism support plate 13 to move, so that the position of the astigmatism support plate 13 can be precisely adjusted. In addition, after the track moving unit 22 moves to a suitable position, the locking assembly 24 is gradually extended, and the top position of the locking assembly 24 is in contact with the sliding track 21, so that the friction between the locking assembly 24 and the sliding track 21 is increased to prevent the track moving unit 22 from moving. In the present invention, the locking assembly 24 can be a hydraulic telescopic structure such as a hydraulic rod directly driven, or it can be a spiral telescopic structure driven by a first motor.

[0079] An adjustable support assembly 3 is provided between the sliding assembly and the astigmatism support plate 13, and the adjustable support assembly 3 is used to adjust the horizontal height and the inclination angle of the astigmatism support plate 13. The sliding assembly drives the astigmatism support plate 13 to move through the adjustable support assembly 3; specifically, in order to adapt to the uneven distribution of sunlight in the tunnel, it may also be necessary to adjust the height of the astigmatism support plate 13. For this purpose, the adjustable support assembly 3 includes a telescopic bracket 31, and the telescopic bracket 31 is used to adjust the horizontal height of the astigmatism support plate 13. The telescopic bracket 31 is fixedly arranged at the bottom end of the track moving unit 22. The telescopic bracket 3 1 is provided with an angle adjustment component 32, which is used to adjust the inclination angle of the astigmatism support plate 13; specifically, the telescopic bracket 31 is constructed based on a hydraulic rod, and the telescopic bracket 31 can drive the astigmatism support plate 13 to move in the horizontal direction. The angle adjustment component 32 is driven by a second motor to adjust the inclination angle of the astigmatism support plate 13. According to the above content, the astigmatism support plate 13 can be adjusted in the horizontal height, inclination angle and horizontal direction in the tunnel, and can cope with sunlight of different intensities and different angles, ensuring that the sunlight in the tunnel is evenly scattered.

[0080] A road surface brightness sensor 4 is provided at one end of the astigmatism support plate 13, and the road surface brightness sensor 4 is used to collect road surface brightness information. An intelligent control module 5 is provided on one side of the sliding component, and the intelligent control module 5 is used to control the position and angle of the astigmatism component according to the road surface brightness information.

[0081] In the present invention, the horizontal height, horizontal position and inclination angle of the astigmatism support plate 13 can be adjusted arbitrarily according to the intensity and angle of sunlight, ensuring uniform light intensity in the tunnel and not causing serious changes in light intensity for the driver, thereby ensuring driving safety.

[0082] like Figure 5 As shown, the present invention also proposes a control method for an active sensing type intelligent sunlight lighting diffusing device for tunnel operation and maintenance, so as to achieve the effect of the intelligent control module 5 controlling the position and angle of the diffusing component, which specifically includes the following steps:

[0083] S1, dividing the tunnel into two entrance sections, two groups of connecting sections and a middle section, and calculating the lengths thereof; specifically, since only the two ends of the tunnel can be exposed to sunlight, the intensity of sunlight at different positions in the tunnel is different, therefore, in step S1, the following steps are specifically included:

[0084] S11. Obtaining the illuminated parking sight distance D s , and according to the lighting parking sight distance D s Length of inlet section D th，i The calculation formula is:

[0085]

[0086] In the formula, h b Indicates the clearance height of the tunnel entrance; in the present invention, the lengths of the two entrance sections D th，1 and D th，2 same;

[0087] S12, divide the connecting section into transition section 1, transition section 2 and transition section 3, and obtain the design speed v of the tunnel t , calculate the length D of each transition segment tr，i , and its calculation formula is as follows:

[0088]

[0089] Where D tr，1 , D tr，2 and D tr，3 Respectively represent the lengths of transition section 1, transition section 2 and transition section 3;

[0090] S13. The part between the two groups of transition sections in the tunnel is the middle section; specifically, the two entrance sections are distributed at the two ends of the tunnel, and the two groups of connecting sections are respectively located in the middle of the two entrance sections and the middle section, among which, transition section 1: close to the tunnel entrance section, where the light intensity is relatively high, the purpose is to imitate the external natural light environment, so that the driver's eyes begin to adapt to the gradually decreasing brightness; transition section 2: located in the middle position, the light intensity is further weakened, and the eyes continue to be provided with adaptation time to ensure that the driver can smoothly transition from a high-brightness environment to a low-brightness environment; transition section 3: close to the middle section of the tunnel, the light intensity has been significantly reduced, close to the standard lighting level inside the tunnel, so that the driver can complete the visual adaptation process under safe conditions.

[0091] S2. Obtain the external sunlight intensity L at the tunnel entrance 20 (S), and judge the external sunlight intensity L 20 (S) whether it is 0;

[0092] If yes, it enters sleep mode;

[0093] If not, proceed to step S3; specifically, if there is no sunlight outside the tunnel, it means that the lighting intensity in the tunnel cannot be adjusted according to the sunlight, so the entire system enters sleep mode to reduce power consumption, and regularly obtains the external sunlight intensity L at the entrance position. 20 (S).

[0094] S3. Calculate the actual required lighting intensity E for each transition section i Specifically, in order to ensure the lighting comfort of the driver in the tunnel, it is necessary to consider the external light intensity and the lighting intensity of the middle section, and calculate the required light intensity of each transition section based on the external light intensity and the lighting intensity of the middle section. To this end, in step S3, the following steps are specifically included:

[0095] S31, according to the external sunlight intensity L 20 (S) Calculate the first required lighting intensity of the entrance section, the calculation formula is:

[0096] L th，1 = k × L 20 (S)

[0097] L th，2 =0.5×k×L 20 (S)

[0098] Where, L th，1 and L th，2They respectively represent the first required lighting intensity of the two entrance sections; k represents the brightness reduction coefficient of the entrance section; in the present invention, k is 0.45, wherein, since the illumination intensity when the driver enters and leaves the tunnel is different, when the driver just enters the tunnel, the illumination intensity of the outside world is high, so the illumination intensity required by the driver when entering the entrance section is high, and when the driver leaves the tunnel, the illumination intensity in the tunnel is low, so the illumination intensity required by the driver when leaving the entrance section is low.

[0099] S32, according to L th，1 and L th，2 Calculate the second required lighting intensity L for each transition segment tr，i , and its calculation formula is:

[0100] L tr，1 =0.15×L th，i

[0101] L tr，2 =0.05×L th，i

[0102] L tr，3 =0.15×L th，i

[0103] Where, L tr，1 ,I tr，2 and I tr，3 Respectively represent the second required lighting intensities corresponding to the transition section 1, the transition section 2 and the transition section 3 close to one of the entrance sections;

[0104] S33, the second required lighting intensity L tr，i Converted into actual required lighting intensity E i , and its calculation formula is:

[0105] E i =c×L tr，i

[0106] Where c is the conversion factor; L tr，i Indicates the second required lighting intensity for the corresponding transition section; specifically, under the condition of black asphalt road surface, the value of c is 15lx / (cd / m 2 ), under the condition of cement concrete pavement, the value of c is 10lx / (cd / m 2 ); In the present invention, since the color of the road surface is generally darker, especially the asphalt road surface, it will absorb a lot of light and reduce the light reflection in the tunnel, so it is necessary to correct the second required lighting intensity, so as to facilitate the later adjustment of the actual required lighting intensity E of each transition section. i The position and tilt angle of the astigmatism support plate 13 are adjusted.

[0107] In step S3 of the present invention, the required lighting intensity of the entrance section is calculated according to the sunlight intensity and the design speed of the tunnel, and then the required lighting intensity of each transition section is calculated. Compared with the common calculation method, the influence of the actual conditions of the tunnel and sunlight on the required lighting intensity of the entrance section and the required lighting intensity of the transition section is taken into consideration, so that the horizontal height, horizontal position and inclination angle of the astigmatism support plate 13 can be adjusted more accurately in the later stage to ensure that the lighting intensity in the tunnel is evenly distributed and avoid the influence of the huge difference in lighting intensity on the driver.

[0108] S4, obtain road brightness information according to the road brightness sensor 4, and adjust the horizontal position, horizontal height and inclination angle of the astigmatism support plate 13 according to the road brightness; specifically, in order to improve the avoidance of uneven light intensity distribution in the tunnel causing the driver to be affected by it, therefore, Figure 4 As shown, in step S4, the following steps are specifically included:

[0109] S41, preset brightness range;

[0110] S42, determining whether the difference between the road surface brightness information obtained by two road surface brightness sensors 4 at adjacent positions is within the brightness range;

[0111] If so, then end;

[0112] If not, proceed to step S43;

[0113] S43, calculating the moving distance S of the nth track moving unit 22 in the tunnel according to the information of the horizontal position, horizontal height and inclination angle of the adjacent astigmatism support plate 13 n , and its calculation formula is:

[0114]

[0115] In the formula, when S n When it is a positive number, the nth light guide reflective diffuser moves forward, S n When it is a negative number, the nth light guide reflective diffuser moves backward; n and x n-1 represents the distances of the n-1th and n-th astigmatism support plates 13 from one end of the tunnel respectively; L represents the length of the astigmatism support plate 13; α and β represent the angles between the n-1th and n-th astigmatism support plates 13 and the horizontal plane respectively; γ represents the angle between the rear end boundary light scattered by the n-1th astigmatism support plate 13 and the road surface normal; h represents the angle between the rear end boundary light scattered by the n-1th astigmatism support plate 13 and the road surface normal; n-1 and h n denote the heights of the n-1th and nth astigmatism support plates 13 respectively; ω denotes the angle between the front boundary light scattered by the nth astigmatism support plate 13 and the road surface normal;

[0116] S44, calculating the adjustment angle θ of the nth astigmatism support plate 13 n , and its calculation formula is:

[0117]

[0118] In the formula, E 测 represents the road brightness information at the position corresponding to the nth scattered light support plate 13 acquired by the road brightness sensor 4; E i，n Indicates the actual required illumination intensity at the position corresponding to the nth astigmatism support plate 13;

[0119] S45, calculating the adjustment height Δh of the nth astigmatism support plate 13, and the calculation formula is:

[0120]

[0121] Wherein, when △h is a positive number, the nth light guide reflective diffuser moves upward, and when △h is a negative number, the nth light guide reflective diffuser moves downward;

[0122] S46, according to the moving distance S n 、Adjust the angle θ n and adjusting height Δh to adjust the horizontal position, horizontal height and inclination angle of the astigmatism support plate 13 respectively; in step S4 of the present invention, the horizontal position and horizontal height of the target astigmatism support plate 13 are adjusted according to the astigmatism support plate 13 at the adjacent position, and the adjustment angle of the target astigmatism support plate 13 is calculated according to the actual required lighting intensity and road brightness information of the corresponding position of the target astigmatism support plate 13, so that after each astigmatism support plate 13 is adjusted, the light intensity of each irradiated position is ensured to be evenly distributed, which solves the problem of uneven illumination area in traditional lighting systems and reduces the impact of the "zebra effect" or glare effect on the driver's vision.

[0123] Those skilled in the art can understand that all or part of the steps in the above embodiment methods can be completed by instructing the relevant hardware through a program, so the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0124] The above implementation methods have been described in detail. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An active sensing type intelligent sunlight lighting and light diffusion device for tunnel operation and maintenance, characterized in that: It comprises an intelligent sliding track system (2) arranged on the top of a light-guiding reflective diffuser (1), wherein the light-guiding reflective diffuser (1) comprises a light-scattering support plate (13), and a light-scattering component for scattering light in a tunnel is arranged at the bottom of the light-scattering support plate (13); The intelligent sliding track system (2) comprises a sliding track (21), a sliding component is provided at the bottom of the sliding track (21), an adjustable support component (3) is provided between the sliding component and the astigmatism support plate (13), the adjustable support component (3) is used to adjust the horizontal height and the inclination angle of the astigmatism support plate (13), the sliding component drives the astigmatism support plate (13) to move through the adjustable support component (3), and a road surface brightness sensor (4) is provided at one end of the astigmatism support plate (13), and the road surface brightness sensor (4) is used to collect road surface brightness information.

2. The intelligent sunlight lighting diffusing device according to claim 1, characterized in that: The light diffusion component comprises a reflective diffusion plate (12), wherein the reflective diffusion plate (12) is fixedly arranged at the bottom of the scattering lens group (11), and the bottom of the reflective diffusion plate (12) is fixedly connected to the scattering lens group (11).

3. The intelligent sunlight lighting diffusing device according to claim 1, characterized in that: The sliding assembly comprises a track moving unit (22), a plurality of limiting members are fixedly arranged at the top of the track moving unit (22), a pulley (23) is arranged inside the limiting member, the pulley (23) is rotatably connected to the track moving unit (22), and the side wall of the pulley (23) is matched with the sliding track (21).

4. The intelligent sunlight lighting diffusing device according to claim 3, characterized in that: The inner wall of the sliding track (21) is provided with a rack, the top of the track moving unit (22) is fixedly provided with a gear moving assembly (25), the top of the gear moving assembly (25) is provided with a gear, the gear and the rack are meshed, and the top of the track moving unit (22) is provided with a locking assembly (24) for limiting the movement of the track moving unit (22).

5. The intelligent sunlight lighting diffusing device according to claim 3, characterized in that: The adjustable support assembly (3) comprises a telescopic bracket (31) for adjusting the horizontal height of the astigmatism support plate (13); the telescopic bracket (31) is fixedly arranged at the bottom end of the track moving unit (22); and an angle adjustment assembly (32) for adjusting the inclination angle of the astigmatism support plate (13) is provided at the bottom of the telescopic bracket (31).

6. A control method for realizing the intelligent sunlight lighting diffusing device according to any one of claims 1 to 5, characterized in that: The specific steps include: S1. Divide the tunnel into two entrance sections, two sets of connecting sections and an intermediate section, and calculate their lengths; S2. Obtain the external sunlight intensity L at the tunnel entrance 20 (S), and judge the external sunlight intensity L 20 (S) whether it is 0; If yes, it enters sleep mode; If not, proceed to step S3; S3. Calculate the actual required lighting intensity E for each transition section i ; S4. Obtain road surface brightness information according to the road surface brightness sensor, and adjust the horizontal position, horizontal height and inclination angle of the astigmatism support plate according to the road surface brightness.

7. The control method according to claim 6, characterized in that: In step S4, the following steps are specifically included: S41, preset brightness range; S42, determining whether the difference between the road surface brightness information obtained by two road surface brightness sensors at adjacent positions is within the brightness range; If so, then end; If not, proceed to step S43; S43, calculating the moving distance S of the nth track moving unit in the tunnel according to the information of the horizontal position, horizontal height and inclination angle of the adjacent astigmatism support plate n , and its calculation formula is: In the formula, when S n When it is a positive number, the nth light guide reflective diffuser moves forward, S n When it is a negative number, the nth light guide reflective diffuser moves backward; n and x n-1 They represent the distances of the n-1th and n-th astigmatism support plates from one end of the tunnel respectively; L represents the length of the astigmatism support plate; α and β represent the angles between the n-1th and n-th astigmatism support plates and the horizontal plane respectively; γ represents the angle between the rear boundary light scattered by the n-1th astigmatism support plate and the road surface normal; h n-1 and h n denote the heights of the n-1th and nth astigmatism support plates respectively; ω denotes the angle between the front boundary light scattered by the nth astigmatism support plate and the road surface normal; S44, calculating the adjustment angle θ of the nth astigmatism support plate n , and its calculation formula is: In the formula, E 测 represents the road brightness information at the position corresponding to the nth astigmatism support plate obtained by the road brightness sensor; E i，n Indicates the actual required illumination intensity at the position corresponding to the nth astigmatism support plate; S45, calculating the adjustment height Δh of the nth astigmatism support plate, and the calculation formula is: Wherein, when △h is a positive number, the nth light guide reflective diffuser moves upward, and when △h is a negative number, the nth light guide reflective diffuser moves downward; S46, according to the moving distance S n 、Adjust the angle θ n and adjusting height Δh to adjust the horizontal position, horizontal height and tilt angle of the astigmatism support plate respectively.

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