Active sensing type tunnel operation and maintenance intelligent sunlight illumination and dispersion device and method

Abstract

The present application 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, comprising a light guide reflective light scattering device and an intelligent sliding rail system arranged at the top of the light guide reflective light scattering device, the light guide reflective light scattering device comprises a light scattering support plate and a road surface brightness sensor; compared with the equidistant installation method of the traditional tunnel lighting system, according to the actual required illumination requirements of each section in the tunnel, the actual situation of the tunnel area and the actual design use of the tunnel, the position, angle and height of the light guide reflective light scattering device can be adjusted in real time and actively, so as to realize the accurate adjustment of the sunlight in the tunnel, make the light intensity uniformly distributed, ensure the uniformity and continuity of the lighting effect, enhance the comfort and improve the visibility, so that the driver can more accurately judge the road conditions under the uniform illumination, reduce the safety hidden danger in the tunnel, and provide a better driving environment for the driver.

Description

TECHNICAL FIELD

[0001] The present application 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. BACKGROUND

[0002] At present, tunnel lighting technology mainly relies on traditional electric lighting systems or sunlight light guide lighting systems. In these systems, the lighting devices are usually installed in an equidistant manner. However, this installation method is prone to uneven lighting in actual application, especially between adjacent lighting devices, which often results in light overlapping or lighting blank areas. This leads to uneven distribution of light intensity in the tunnel, resulting in obvious light and dark changes, which seriously affects the visual perception of drivers, causing "zebra effect" or glare effect. These visual phenomena can cause visual illusions and distraction of drivers, increasing the risk of misjudging the position and speed of objects, and thus significantly increasing the probability of traffic accidents. Therefore, it is crucial to optimize tunnel lighting design to reduce the contrast between light and dark to ensure the safety of driving and walking.

[0003] At the same time, the existing dimming lighting system can adjust the light intensity, but most systems are limited to brightness adjustment only 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 the external light conditions, therefore, the uniformity of light is still not effectively guaranteed, and the flexibility and dynamics of different lighting requirements in the tunnel cannot be met. SUMMARY

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

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] An active sensing intelligent solar lighting diffuser device and method for tunnel operation and maintenance includes a light-guiding reflective diffuser and an intelligent sliding track system disposed on top of the light-guiding reflective diffuser. The light-guiding reflective diffuser includes a diffuser support plate, and a diffuser component is provided at the bottom of the diffuser support plate. The diffuser component is used to scatter light inside the tunnel. The intelligent sliding track system includes a sliding track, and a sliding component is provided at the bottom of the sliding track. An adjustable support component is provided between the sliding component and the diffuser support plate. The adjustable support component is used to adjust the horizontal height and tilt angle of the diffuser support plate. The sliding component drives the diffuser support plate to move through the adjustable support component. A road surface brightness sensor is provided at one end of the diffuser support plate. 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. The intelligent control module is used to control the position and angle of the diffuser component according to the road surface brightness information.

[0007] Specifically, the astigmatism assembly includes a reflective diffuser plate, which is fixedly disposed at the bottom of the scattering lens group, and the scattering lens group is fixedly connected to the bottom of the reflective diffuser plate.

[0008] Specifically, the sliding assembly includes a track moving unit, and a number of limiting members are fixedly provided at the top of the track moving unit. The limiting members are provided with pulleys inside, and the pulleys are rotatably connected to the track moving unit. The sidewalls of the pulleys match the sliding track.

[0009] Specifically, the inner wall of the sliding track is provided with a rack, and a gear moving assembly is fixedly provided on the top of the track moving unit. The top of the gear moving assembly is provided with a gear, which meshes with the rack. The gear moving assembly is used to drive the gear to rotate. The top of the track moving unit is provided with a locking assembly, which 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 installed at the bottom of the track moving unit. An angle adjustment component is provided at the bottom of the telescopic bracket, which is used to adjust the tilt angle of the astigmatism support plate.

[0011] This invention also proposes a control method for an active sensing intelligent sunlight illumination diffuser for tunnel operation and maintenance, specifically including 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 ambient sunlight intensity L at the tunnel entrance location. 20 (S), and determine the intensity of external sunlight L.20 (S) is 0;

[0014] If yes, enter the sleep mode;

[0015] If no, enter step S3;

[0016] S3, calculate the actual required lighting intensity E of each transition section i ;

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

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

[0019] S11, obtain the lighting stopping sight distance D s , and calculate the entrance section length D th，i according to the lighting stopping sight distance D s , the calculation formula of which is:

[0020]

[0021] In the formula, h b represents the clearance height of the tunnel portal;

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

[0023]

[0024] In the formula, D tr，1 , D tr，2 and D tr，3 respectively represent the lengths of the transition section 1, the transition section 2 and the transition section 3;

[0025] S13, the part between the 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, calculate the first required lighting intensity of the entrance section according to the external solar intensity L 20 (S), the calculation formula of which is:

[0028] L th，1 = k × L 20 (S)

[0029] L th，2= 0.5 x k x L 20 (S)

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

[0031] S32, according to L th，1 and L th，2 , calculate the second required illumination intensity L tr，i of each transition section, the calculation formula is:

[0032] L tr，1 = 0.15 x L th，i

[0033] L tr，2 = 0.05 x L th，i

[0034] L tr，3 = 0.15 x L th，i

[0035] In the formula, L tr，1 , L tr，2 and L tr，3 respectively represent the second required illumination intensity of the transition section 1, the transition section 2 and the transition section 3 corresponding to the one of the entrance sections close to the transition section;

[0036] S33, convert the second required illumination intensity L tr，i into the actual required illumination intensity E i , the calculation formula is:

[0037] E i = c x L tr，i

[0038] In the formula, c represents the conversion coefficient; L tr，i represents the second required illumination intensity of the corresponding transition section.

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

[0040] S41, preset the brightness interval;

[0041] S42, judge whether the difference between the road surface brightness information obtained by the two road surface brightness sensors at adjacent positions is in the brightness interval;

[0042] If yes, end;

[0043] If not, go 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, the horizontal height and the inclination angle of the adjacent light scattering support plate n , and the calculation formula is:

[0045]

[0046] In the formula, when S n is positive, the nth light guide reflective light scattering device moves forward, S n is negative, the nth light guide reflective light scattering device moves backward; x n and x n-1 respectively represent the distance of the (n-1)th and nth light scattering support plate from one end of the tunnel; L represents the length of the light scattering support plate; β and β respectively represent the included angle between the (n-1)th and nth light scattering support plate and the horizontal plane; γ represents the included angle between the back end boundary light scattered by the (n-1)th light scattering support plate and the road surface normal; h n-1 and h n respectively represent the height of the (n-1)th and nth light scattering support plate; ω represents the included angle between the front end boundary light scattered by the nth light scattering support plate and the road surface normal;

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

[0048]

[0049] In the formula, E 测 represents the road surface brightness information of the corresponding position of the nth light scattering support plate obtained by the road surface brightness sensor; E i，n represents the actual required illumination intensity of the corresponding position of the nth light scattering support plate;

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

[0051]

[0052] In the formula, when Δh is positive, the nth light guide reflective light scattering device moves upward, and when Δh is negative, the nth light guide reflective light scattering device moves downward;

[0053] S46, adjusting the horizontal position, the horizontal height and the inclination angle of the light scattering support plate according to the moving distance S n , the adjustment angle θ n and the adjustment height Δh respectively.

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

[0055] 1、Compared with the equidistance installation method of the conventional tunnel lighting system, according to the actual required lighting requirements of each section in the tunnel, the actual situation of the tunnel area and the actual design use condition of the tunnel, the position, angle and height of the light guide reflective diffuser can be adjusted in real time through the combination of the light guide reflective diffuser and the intelligent sliding rail system, so that the sunlight in the tunnel can be accurately adjusted, the light intensity is uniformly distributed, the uniformity and continuity of the lighting effect are ensured, the "zebra effect" caused by the light changes when installing the lighting facilities at equidistance is avoided, the comfort and visibility are enhanced, and the driver can more accurately judge the road conditions under the uniform light, so that the safety hidden danger in the tunnel is reduced, and a better driving environment is provided for the driver.

[0056] 2、According to the real-time data actively collected by the road brightness sensor, the intelligent control module is used for self-judgment and adjustment, so that the "on-demand lighting" is realized, compared with the conventional manual adjustment or preset lighting mode, the automatic degree of the present application is high, the light guide reflective diffuser can be adjusted in real time according to the change of the light conditions inside and outside the tunnel, and manual intervention is not needed, especially in the case that different lighting requirements exist in different areas of the tunnel, the system can automatically adjust the position, angle and height of the light guide reflective diffuser, so that the light intensity in different areas meets the actual requirements, and the sunlight use efficiency is maximized.

[0057] 3、The present application adopts multiple protection design, including vibration suppression device, locking device and the like, so that the lighting system can stably operate even under the vibration caused by the high-speed driving vehicles in the tunnel and external interference, the intelligent sliding rail and the precise positioning system greatly improve the moving precision of the light guide reflective diffuser in the tunnel, the influence of mechanical failure on the system operation is avoided, and the reliability of the system in long-term use is ensured.

[0058] 4、The present application can realize the uniform illumination of the road surface in the tunnel by accurately adjusting the angle and position of the light guide reflective diffuser and combining the real-time data acquisition and feedback mechanism of the intelligent control module, the system does not need to rely on traditional electric lighting for light supplement, the dependence on electric power resources is reduced, the development concept of green environmental protection is met, the application of sunlight lighting technology in tunnel construction is greatly promoted, and the energy efficiency and sustainability of tunnel lighting are effectively improved.

[0059] 5、Compared with the conventional electric lighting and other sunlight guide lighting systems, the present application does not need frequent adjustment and high-intensity maintenance, significantly reduces the operation cost, prolongs the service life of the lighting equipment, ensures the long-term stability and low-cost operation of the tunnel lighting system, and facilitates the tunnel operation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0060] The drawings described herein are intended to provide further understanding of the present application, form a part of the present application, and explain the present application and its description, and do not constitute an improper limitation of the present application. In the drawings:

[0061] Figure 1 Structure diagram of the intelligent sunlight illumination and scattering device for active sensing type tunnel operation and maintenance of the present application;

[0062] Figure 2 Structure diagram of the light guide reflective scattering device and adjustable support assembly of the present application;

[0063] Figure 3 Structure diagram of the road surface brightness sensor of the present application;

[0064] Figure 4 Schematic diagram of sunlight scattering in the tunnel of the present application;

[0065] Figure 5 Flow chart of the control method of the intelligent sunlight illumination and scattering device for active sensing type tunnel operation and maintenance of the present application.

[0066] In the figure: 1, light guide reflective scattering device; 11, scattering lens group; 12, reflective diffusion plate; 13, scattering support plate;

[0067] 2, intelligent sliding rail system; 21, sliding rail; 22, rail moving unit; 23, pulley; 24, locking assembly; 25, gear moving assembly;

[0068] 3, adjustable support assembly; 31, telescopic support; 32, angle adjusting assembly;

[0069] 4, road surface brightness sensor;

[0070] 5, intelligent control module. DETAILED DESCRIPTION

[0071] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below in combination with the drawings and specific embodiments. The realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

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

[0073] Currently, tunnel lighting technology mainly relies on traditional electric lighting systems or solar light guiding lighting systems. In these systems, the lighting devices are usually installed in an equidistant manner. However, this installation method is prone to uneven lighting in actual application, especially between adjacent lighting devices, which often results in light overlapping or lighting blank areas. This leads to uneven distribution of light intensity in the tunnel, resulting in significant light-dark changes, which seriously affects the visual perception of drivers and causes "zebra effect" or glare effect. These visual phenomena can cause visual illusions and distraction of drivers, increasing the risk of misjudging the position and speed of objects, and thus significantly increasing the probability of traffic accidents. Therefore, it is crucial to optimize tunnel lighting design to reduce light-dark contrast to ensure the safety of driving and walking.

[0074] At the same time, existing dimming lighting systems can adjust light intensity, but most systems are limited to brightness adjustment and do not solve the problem of lighting area distribution. More importantly, existing systems cannot adjust the lighting range in real time according to external lighting conditions, so the uniformity of light is still not effectively guaranteed, and the flexibility and dynamics of different lighting requirements in the tunnel cannot be met.

[0075] To solve the above problems, as shown in Figures 1-3 The present application provides an active perception type intelligent solar lighting diffuser device for tunnel operation, which comprises a light guide reflective diffuser 1 and an intelligent sliding rail system 2 arranged on the top of the light guide reflective diffuser 1. Specifically, since the angle and intensity of sunlight in the tunnel change with time and weather, in order to achieve uniform distribution of light in the tunnel, the light guide reflective diffuser 1 needs to be adjusted according to the angle and intensity of sunlight.

[0076] The light guide reflective light scattering device 1 comprises a light scattering support plate 13, the bottom of the light scattering support plate 13 is provided with a light scattering assembly, and the light scattering assembly is used for scattering light in the tunnel; specifically, when the light scattering assembly reflects sunlight in the tunnel, it is necessary to uniformly distribute the light intensity of each irradiated position, for this purpose, the light scattering assembly comprises a reflective diffusion plate 12, 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 with the scattering lens group 11; specifically, the light scattering support plate 13 is used for supporting the reflective diffusion plate 12, determining the position of the reflective diffusion plate 12 and driving the reflective diffusion plate 12 to move, the reflective diffusion plate 12 is used for reflecting sunlight in the tunnel, and the light scattering support plate 13 is used for scattering sunlight reflected by the reflective diffusion 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 comprises a sliding track 21, and the bottom of the sliding track 21 is provided with a sliding assembly; specifically, since the position of sunlight in the tunnel will shift to a certain extent, it is necessary to adjust the position of the light scattering assembly, for this purpose, the sliding assembly comprises a track moving unit 22, the top end of the track moving unit 22 is fixedly provided with a plurality of limiting pieces, the inside of the limiting piece is provided with a pulley 23, the pulley 23 and the track moving unit 22 are rotationally connected, and the side wall of the pulley 23 and the sliding track 21 are consistent; 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, so as to limit the position of the track moving unit 22, avoid the track moving unit 22 from falling off 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, the inner wall of the sliding rail 21 is provided with a rack, the top of the rail 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 engaged, the gear moving assembly 25 is used to drive the gear to rotate, the top of the rail moving unit 22 is provided with a locking assembly 24, and the locking assembly 24 is used to limit the movement of the rail moving unit 22; specifically, when it is necessary to move the astigmatism supporting plate 13, the gear moving assembly 25 drives the gear to rotate, the gear moves through cooperation with the rack, and then the rail moving unit 22 and the astigmatism supporting plate 13 are driven to move, so that the position of the astigmatism supporting plate 13 can be accurately adjusted. In addition, after the rail moving unit 22 moves to the appropriate position, the locking assembly 24 gradually extends, the top position of the locking assembly 24 is attached to the sliding rail 21, so that the friction between the locking assembly 24 and the sliding rail 21 is increased, so as to avoid the movement of the rail moving unit 22. In the application, the locking assembly 24 can be a hydraulic telescopic structure such as a hydraulic rod directly driven, or a screw telescopic structure driven by a first motor.

[0079] The sliding assembly and the astigmatism supporting plate 13 are provided with an adjustable supporting assembly 3, the adjustable supporting assembly 3 is used to adjust the horizontal height and the inclination angle of the astigmatism supporting plate 13, and the sliding assembly drives the astigmatism supporting plate 13 to move through the adjustable supporting assembly 3; specifically, in order to adapt to the uneven distribution of sunlight in the tunnel, it can also be necessary to adjust the height of the astigmatism supporting plate 13. For this purpose, the adjustable supporting assembly 3 comprises a telescopic support 31, the telescopic support 31 is used to adjust the horizontal height of the astigmatism supporting plate 13, the telescopic support 31 is fixedly arranged at the bottom end of the rail moving unit 22, the bottom of the telescopic support 31 is provided with an angle adjusting assembly 32, and the angle adjusting assembly 32 is used to adjust the inclination angle of the astigmatism supporting plate 13; specifically, the telescopic support 31 is constructed based on a hydraulic rod, the telescopic support 31 can drive the astigmatism supporting plate 13 to move in the horizontal direction, the angle adjusting assembly 32 is driven by a second motor to adjust the inclination angle of the astigmatism supporting plate 13. According to the above content, the astigmatism supporting plate 13 can be adjusted in the horizontal height, the inclination angle and the horizontal direction in the tunnel, so that sunlight of different intensities and different angles can be coped with, and the sunlight in the tunnel can be uniformly scattered.

[0080] One end of the astigmatism supporting plate 13 is provided with a road surface brightness sensor 4, the road surface brightness sensor 4 is used to collect road surface brightness information, one side of the sliding assembly is provided with an intelligent control module 5, and the intelligent control module 5 is used to control the position and angle of the light diffusion assembly according to the road surface brightness information.

[0081] In the present application, the horizontal height, horizontal position and inclination angle of the astigmatic support plate 13 can be adjusted arbitrarily according to the intensity and angle of sunlight, ensuring uniform illumination intensity in the tunnel and preventing the driver from experiencing a serious change in illumination intensity, thereby ensuring driving safety.

[0082] As shown in Figure 5 , the present application also provides a control method of the active perception type intelligent sunlight illumination astigmatic device for tunnel operation and maintenance, which realizes the effect of controlling the position and angle of the astigmatic assembly by the intelligent control module 5, and specifically includes the following steps:

[0083] S1, divide the tunnel into two entrance sections, two groups of connecting sections and a middle section, and calculate the lengths thereof; specifically, since the tunnel has only two end positions that can contact sunlight, the intensity of sunlight at different positions in the tunnel is different, therefore, in step S1, specifically includes the following steps:

[0084] S11, obtain the lighting stopping distance D s , and calculate the length D s of the entrance section according to the lighting stopping distance D th，i , and the calculation formula is:

[0085]

[0086] In the formula, h b represents the clear height of the tunnel portal; in the present application, the lengths D th，1 and D th，2 of the two entrance sections are the same;

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

[0088]

[0089] In the formula, D tr，1 , D tr，2 and D tr，3 respectively represent the lengths of the transition section 1, the transition section 2 and the 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 end positions of the tunnel, and the two groups of connection sections are located at the middle positions of the two entrance sections and the middle section, wherein, transition section 1: close to the tunnel entrance section, the light intensity here is higher, the purpose is to simulate the external natural light environment, so that the driver's eyes start to adapt to the gradually reduced brightness; transition section 2: located at the middle position, the light intensity is further weakened, continue to provide adaptation time for the eyes, 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, acquire the external sunlight intensity L at the entrance position of the tunnel 20 (S), and determine whether the external sunlight intensity L 20 (S) is 0;

[0092] If yes, enter the sleep mode;

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

[0094] S3, calculate the actual required lighting intensity E of each transition section i ; specifically, in order to ensure the lighting comfort of the driver driving in the tunnel, the external light intensity and the lighting intensity of the middle section need to be considered, and the required light intensity of each transition section is calculated according to them, therefore, in step S3, the following steps are included:

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

[0096] L th，1 = k x L 20 (S)

[0097] L th，2 = 0.5 x k x L 20 (S)

[0098] In the formula, L th，1 and L th，2respectively represent the first required lighting intensity of the two entrance sections; k represents the entrance section brightness reduction coefficient; in the present application, k is 0.45, wherein, since the light intensity in which the driver is located is different when the driver drives into and out of the tunnel, the required lighting intensity when the driver drives into the entrance section is higher due to the higher light intensity outside when the driver drives into the tunnel, and the required lighting intensity when the driver drives out of the entrance section is lower due to the lower light intensity in the tunnel when the driver drives out of the tunnel.

[0099] S32, according to L th，1 and L th，2 , the second required lighting intensity L tr，i of each transition section is calculated.

[0100] L tr，1 = 0.15 x L th，i

[0101] L tr，2 = 0.05 x L th，i

[0102] L tr，3 = 0.15 x L th，i

[0103] In the formula, L tr，1 , I tr，2 and I tr，3 respectively represent the second required lighting intensity corresponding to the transition section 1, the transition section 2 and the transition section 3 near one of the entrance sections.

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

[0105] E i = c x L tr，i

[0106] In the formula, c represents the conversion coefficient; L tr，i represents the second required lighting intensity of the corresponding transition section; specifically, under the condition of black asphalt pavement, the value of c is 15 lx / (cd / m 2 ), and under the condition of cement concrete pavement, the value of c is 10 lx / (cd / m 2 ); in the present application, since the color of the road surface is generally dark, especially the asphalt pavement, a large amount of light is absorbed, and the light reflection in the tunnel is reduced, so the second required lighting intensity needs to be corrected, so as to adjust the position and inclination angle of the astigmatic support plate 13 according to the actual required lighting intensity E i of each transition section in the later stage.

[0107] In step S3 of the present application, the required lighting intensity of the entrance section is calculated according to the sunlight intensity and the tunnel design speed, and then the required lighting intensity of each transition section is calculated. Compared with the common calculation method, the influence of the tunnel and the sunlight on the required lighting intensity of the entrance section and the required lighting intensity of the transition section is considered, so that the horizontal height, the horizontal position and the inclination angle of the light diffusion support plate 13 can be adjusted more accurately in the later stage, so as to ensure that the lighting intensity in the tunnel is uniformly distributed, and the influence of the great difference of the lighting intensity on the driver is avoided.

[0108] S4, the road surface brightness information is obtained according to the road surface brightness sensor 4, and the horizontal position, the horizontal height and the inclination angle of the light diffusion support plate 13 are adjusted according to the road surface brightness. Specifically, in order to avoid the uneven distribution of the light intensity in the tunnel from affecting the driver, therefore, as shown in step S4, the following steps are specifically included: Figure 4

[0109] S41, a brightness interval is preset;

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

[0111] If yes, end;

[0112] If no, go to step S43;

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

[0114]

[0115] In the formula, when S n is positive, the nth light diffusion reflective diffuser moves forward, and S n is negative, the nth light diffusion reflective diffuser moves backward; x n and x n-1 respectively represent the distance of the n-1th and nth light diffusion support plate 13 from one end of the tunnel; L represents the length of the light diffusion support plate 13; α and β respectively represent the included angle between the n-1th and nth light diffusion support plate 13 and the horizontal plane; γ represents the included angle between the back end boundary light scattered by the n-1th light diffusion support plate 13 and the road surface normal; h n-1 and h n respectively represent the height of the n-1th and nth light diffusion support plate 13; ω represents the included angle between the front end boundary light scattered by the nth light diffusion support plate 13 and the road surface normal; ​

[0116] S44, calculate the adjustment angle θ of the nth light dispersion support plate 13 n , the calculation formula is:

[0117]

[0118] In the formula, E 测 represents the road surface brightness information of the corresponding position of the nth light dispersion support plate 13 acquired by the road surface brightness sensor 4; E i，n represents the actual required illumination intensity of the corresponding position of the nth light dispersion support plate 13;

[0119] S45, calculate the adjustment height Δh of the nth light dispersion support plate 13, the calculation formula is:

[0120]

[0121] In the formula, when Δh is positive, the nth light guide reflective light dispersion device moves upward, and when Δh is negative, the nth light guide reflective light dispersion device moves downward;

[0122] S46, adjust the horizontal position, the horizontal height and the inclination angle of the light dispersion support plate 13 according to the moving distance S n , the adjustment angle θ n and the adjustment height Δh respectively; in step S4 of the present application, the horizontal position and the horizontal height of the target light dispersion support plate 13 are adjusted according to the light dispersion support plates 13 in the adjacent positions, and the adjustment angle of the target light dispersion support plate 13 is calculated according to the actual required illumination intensity and the road surface brightness information of the corresponding position of the target light dispersion support plate 13, which can ensure that the light intensity of each irradiated position is uniformly distributed after adjusting each light dispersion support plate 13, solves the problem of uneven illumination area in the traditional lighting system, and reduces the influence of "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 programs instructing related hardware, therefore, the present application can adopt a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt a computer program product in the form of a computer usable storage medium (including but not limited to a disk memory, a CD-ROM, an optical memory, etc.) containing computer usable program codes.

[0124] The above embodiments have been described in detail, and the principles and embodiments of the present application have been described by applying specific examples. The above examples are only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific embodiments and application scope will be changed, and the above description should not be understood as a limitation of the present application.

Claims

1. A control method of an intelligent sunlight illumination and light dispersion device for active sensing type tunnel operation and maintenance, characterized in that, The sunlight illumination light diffusion includes a smart sliding rail system arranged on the top of a light guide reflective light diffuser, the light guide reflective light diffuser includes a light diffusion support plate, the bottom of the light diffusion support plate is provided with a light diffusion assembly for scattering light in the tunnel; the smart sliding rail system includes a sliding rail, the bottom of the sliding rail is provided with a sliding assembly, the adjustable support assembly is arranged between the sliding assembly and the light diffusion support plate, the adjustable support assembly is used for adjusting the horizontal height and the inclination angle of the light diffusion support plate, the sliding assembly drives the light diffusion support plate to move through the adjustable support assembly, and specifically includes the following steps: S1, the tunnel is divided into two entrance sections, two groups of connecting sections and a middle section, the connecting section is divided into three transition sections, and the lengths of the three transition sections are calculated; S2, acquire the outside solar intensity of the tunnel entrance position and determine whether the outside solar intensity is 0 ​ If yes, enter the sleep mode; If no, enter step S3; S3、According to the outside solar light intensity and the tunnel design speed, the required lighting intensity of the entrance section is calculated, then the required lighting intensity of each transition section is calculated, and then the actual required lighting intensity of each transition section is obtained ; S41, preset a brightness interval; S42, judge whether the difference between the road surface brightness information obtained by the two road surface brightness sensors of the adjacent positions is in the brightness interval; If yes, end; If no, enter step S43; S43、According to the information of horizontal position, horizontal height and inclination angle of the adjacent astigmatism support plate, the moving distance of the nth track moving unit in the tunnel is calculated The calculation formula is: ； wherein, when is positive, the nth light-guiding reflective diffuser moves forward, is negative, the nth light-guiding reflective diffuser moves backward; and denote the distance of the (n-1)th and nth diffuser support plate from the end of the tunnel, respectively; denotes the length of the diffuser support plate; and denote the angle between the (n-1)th and nth diffuser support plate and the horizontal plane, respectively; denotes the angle between the back end boundary light ray scattered by the (n-1)th diffuser support plate and the road surface normal; and denote the height of the (n-1)th and nth diffuser support plate, respectively; denotes the angle between the front end boundary light ray scattered by the nth diffuser support plate and the road surface normal; S44, calculate the adjustment angle of the nth astigmatism support plate The calculation formula is: ； In the formula, represents the road surface brightness information of the position corresponding to the nth stray light support plate acquired by the road surface brightness sensor; represents the actual required illumination intensity of the position corresponding to the nth stray light support plate. S45, calculating the adjustment height of the nth astigmatism support plate The calculation formula is: ； wherein, when is positive, the nth light guide reflective diffuser moves upward, and when is negative, the nth light guide reflective diffuser moves downward, wherein and represent the height of the (n-1)th and nth diffuser support plates, respectively. S46、Adjusting the horizontal position of the astigmatic support plate according to the moving distance , adjusting the angle and adjusting the height Adjust the horizontal position, horizontal height and tilt angle of the astigmatic support plate respectively.

2. The control method of the active sensing type intelligent sunlight illumination and diffusing device for tunnel operation and maintenance according to claim 1, characterized in that, One end of the light diffusion support plate is provided with a road surface brightness sensor, and the road surface brightness sensor is used for collecting road surface brightness information.

3. The control method of the active sensing type intelligent sunlight illumination and diffusing device for tunnel operation and maintenance according to claim 1, characterized in that, The light diffusion assembly 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 with the scattering lens group.

4. The control method of the active sensing type intelligent sunlight illumination and diffusing device for tunnel operation and maintenance according to claim 1, characterized in that, The sliding assembly includes a track moving unit, a plurality of limiting pieces are fixedly arranged at the top of the track moving unit, the limiting pieces are internally provided with pulleys, the pulleys are rotatably connected with the track moving unit, and the side wall of the pulley is in line with the sliding rail.

5. The control method of the active sensing type intelligent sunlight illumination and diffusing device for tunnel operation and maintenance according to claim 1, characterized in that, The inner wall of the sliding rail is provided with a rack, the top of the track moving unit is fixedly provided with a gear moving assembly, the top of the gear moving assembly is provided with a gear, the gear is engaged with the rack, and the top of the track moving unit is provided with a locking assembly for limiting the movement of the track moving unit.

6. The control method of the active sensing type intelligent sunlight illumination and diffusing device for tunnel operation and maintenance according to claim 1, characterized in that, The adjustable support assembly includes a telescopic support for adjusting the horizontal height of the light diffusion support plate, the telescopic support is fixedly arranged at the bottom end of the track moving unit, and the bottom of the telescopic support is provided with an angle adjusting assembly for adjusting the inclination angle of the light diffusion support plate.

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