Optical fiber illumination compensation device

Abstract

The utility model provides an optical fiber illumination compensation device, and relates to the technical field of tunnel illumination. The optical fiber illumination compensation device comprises a control terminal, an optical fiber illumination module and an LED illumination module. The control terminal is provided with a main control unit, a brightness detection unit and an illumination compensation unit; the optical fiber illumination module comprises an optical fiber interface, a light transmittance adjusting mechanism and a reflecting cover; the solar optical fiber illumination technology is applied to tunnel illumination, solar optical fiber illumination is adopted at the entrance and the exit of the tunnel, and part of electric power and input cost can be saved; according to the illumination brightness inside and outside the tunnel detected by the brightness detection unit, the light transmittance adjusting mechanism of the optical fiber illumination module and the LED illumination module are adjusted and controlled through the illumination compensation unit, natural transition of the illumination brightness inside and outside the tunnel can be achieved, and the dark adaptation symptom of a driver is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel lighting, in particular to an optical fiber lighting compensation device. Background Art

[0002] The concept of solar fiber optic lighting system was proposed at the end of the 20th century. It combines a series of patented technologies such as sun tracking and lens focusing to greatly increase the brightness of sunlight at the focal point, and guides light to where lighting is needed through high-transmittance optical fibers. Compared with traditional lighting technology, it is not restricted by the wiring of lighting facilities and the constraints of power base stations, and can also reduce energy consumption.

[0003] Tunnels in my country are important throats of highway and railway systems. During the construction and operation of tunnels, stable lighting needs to be provided. Usually, LED lamp groups are used for tunnel lighting. LED lighting has low energy consumption and can provide uniform lighting effects, improving visibility in tunnels and drivers' sense of security. Experiments show that the road illuminance during the day is not much different from that at the tunnel entrance, but the maximum difference between the tunnel entrance and the tunnel is more than 1,900 times. At night, the surrounding environment of the road outside the tunnel is relatively open, and the difference in illuminance inside and outside the tunnel can even reach tens of thousands of times. When entering the tunnel from outside, the eyes need a dark adaptation process, which takes a short time, but the eyes will not be able to see clearly. When coming out of the tunnel, there is a light adaptation process. It is relatively dark in the tunnel for a long time. After leaving the tunnel, there will be a bright white in front of the eyes, which is also a state of not being able to see clearly. However, according to research, the light adaptation process is shorter than the dark adaptation process. When driving at a relatively fast speed, when encountering dark adaptation, there will be a "visual blank" where you can't see anything in an instant, which poses a great safety hazard.

[0004] During this adaptation process, if there are sudden situations such as oncoming vehicles or deteriorating road conditions, traffic accidents can easily occur. In addition, when connecting and passing through multiple discontinuous tunnels, dark adaptation will affect the driver's mental state and make driving fatigue prone. Research should be conducted on the difference in brightness inside and outside the tunnel, and it is necessary to design a technical solution that can optimize the lighting system inside and outside the tunnel. Utility Model Content

[0005] The utility model provides an optical fiber lighting compensation device, which aims to solve the problem of brightness difference between inside and outside of a tunnel mentioned in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0007] An optical fiber lighting compensation device comprises a control terminal, an optical fiber lighting module and an LED lighting module;

[0008] The control terminal is provided with a main control unit, a brightness detection unit and a lighting compensation unit;

[0009] The fiber optic lighting module includes a fiber optic interface, a light transmittance adjustment mechanism and a reflector;

[0010] The lighting compensation unit of the control terminal is electrically connected to the optical fiber lighting module and the LED lighting module, and the brightness detection unit is used to detect the brightness inside and outside the tunnel;

[0011] The main control unit receives the brightness detection data from the brightness detection unit, and controls the lighting compensation unit to adjust the lighting brightness of the optical fiber lighting module and the LED lighting module, so that the brightness inside and outside the tunnel reaches a natural transition state.

[0012] Furthermore, the transmittance adjustment mechanism is arranged at the lower part of the optical fiber interface, and the transmittance adjustment mechanism is provided with a plurality of sliding grooves, and lens sheets with different transmittances are installed in the sliding grooves, and magnets are provided at the edges of the lens sheets. The transmittance adjustment mechanism is also provided with an end cover, and the end cover is equipped with a plurality of electromagnets, and the electromagnets and magnets correspond one to one. The rear end face of the end cover is provided with a third circuit interface, and the third circuit interface is electrically connected to the first circuit interface of the lighting compensation unit.

[0013] Furthermore, a magnetic isolation plate is provided between adjacent sliding grooves.

[0014] Furthermore, the LED lighting module is electrically connected to the second circuit interface of the lighting compensation unit.

[0015] Furthermore, the control terminal, the optical fiber lighting module and the LED lighting module are fixed to the tunnel wall by bolts.

[0016] The utility model adopts the above technical solution, which has the following beneficial effects:

[0017] The fiber optic lighting module of the utility model applies the technology of solar fiber optic lighting to tunnel lighting. Solar fiber optic lighting is used at the tunnel entrance and exit, which can save part of electricity and investment costs. According to the brightness of the light inside and outside the tunnel detected by the brightness detection unit, the light transmittance adjustment mechanism and the LED lighting module of the fiber optic lighting module are adjusted by the lighting compensation unit, so as to realize the natural transition of the lighting brightness inside and outside the tunnel, and avoid the symptoms of dark adaptation of the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 It is a schematic diagram of the device of the utility model;

[0020] Figure 2 It is a schematic diagram of the control terminal of the utility model;

[0021] Figure 3 is a schematic diagram of the optical fiber lighting module of the utility model;

[0022] Figure 4 is a cross-sectional view of the optical fiber lighting module of the utility model;

[0023] Figure 5 for Figure 4 A partial enlarged view of point A;

[0024] Figure 6 This is a front view of the end cover of the light transmittance adjustment mechanism of the utility model;

[0025] Figure 7 It is a schematic diagram of a lens sheet of the light transmittance adjustment mechanism of the utility model.

[0026] In the figure: 1-control terminal; 11-main control unit; 12-brightness detection unit; 13-illumination compensation unit; 131-first circuit interface; 132-second circuit interface; 2-optical fiber lighting module; 21-optical fiber interface; 22-transmittance adjustment mechanism; 221-sliding groove; 222-lens sheet; 2221-magnet; 223-end cover; 2231-electromagnet; 2232-third circuit interface; 224-magnetic isolation plate; 23-reflector; 3-LED lighting module. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention. Example 1

[0028] See also Figure 1-Figure 3 A fiber optic lighting compensation device comprises a control terminal 1, a fiber optic lighting module 2 and an LED lighting module 3; the control terminal 1 is provided with a main control unit 11, a brightness detection unit 12 and a lighting compensation unit 13, the lighting compensation unit 13 is provided with a first circuit interface 131 and a second circuit interface 132; the fiber optic lighting module 2 comprises a fiber optic interface 21, a transmittance adjustment mechanism 22 and a reflector 23; the lighting compensation unit 13 is electrically connected to the fiber optic lighting module through the first circuit interface 131, and is electrically connected to the LED lighting module 3 through the second circuit interface 132.

[0029] See also Figure 4-Figure 7The transmittance adjustment mechanism 22 is arranged at the lower part of the optical fiber interface 21, and the transmittance adjustment mechanism 22 is provided with a plurality of sliding grooves 221. The sliding grooves 221 are equipped with lens pieces 222 with different transmittances, and a magnet 2221 is provided at the edge of the lens piece 222. The transmittance adjustment mechanism 22 is also provided with an end cover 223, and the end cover 223 is equipped with a plurality of electromagnets 2231. The electromagnets 2231 and the magnets 2221 correspond one to one. The rear end face of the end cover 223 is provided with a third circuit interface 2232, and the third circuit interface 2232 is electrically connected to the first circuit interface 131 of the lighting compensation unit 13.

[0030] Preferably, a magnetic isolation plate 224 is provided between adjacent sliding grooves 221 .

[0031] Preferably, the control terminal 1, the optical fiber lighting module 2 and the LED lighting module 3 are fixed to the tunnel wall by bolts. Example 2

[0032] The brightness detection unit 12 is used to detect the light brightness inside the tunnel and the light brightness outside the tunnel; the main control unit 11 receives the light brightness data of the brightness detection unit 12, and controls the lighting compensation unit 13 to adjust the lighting brightness of the optical fiber lighting module 2 and the LED lighting module 3, so that the light brightness at the tunnel entrance reaches a natural transition state.

[0033] Preferably, the transmittance adjustment mechanism 22 is provided with at least three sliding grooves 221, and the sliding grooves 221 are equipped with lens pieces 222 with different transmittances; when the lighting compensation unit 13 adjusts the lighting brightness of the optical fiber lighting module 2, by controlling the electromagnet 2231 assembled on the end cover 223, since the electromagnet 2231 and the magnet 2221 correspond one to one, and a magnetic isolation plate is provided between adjacent sliding grooves; the electromagnet 2231 is magnetized respectively, so that the electromagnet 2231 has the same magnetism as the magnet 2221, and since magnetic materials of the same polarity repel each other, The lens piece 222 can be pushed forward along the sliding groove 221 so that the lens piece 222 intervenes in the optical fiber channel to adjust the lighting brightness; the electromagnet 2231 is magnetized so that the electromagnet 2231 has a magnetism opposite to that of the magnet 2221. Due to the property of opposites attracting each other, the lens piece 222 can be adsorbed and moved backward along the sliding groove 221 so that the lens piece 222 is away from the optical fiber channel; the lens pieces 222 with three different transmittances can be arranged and combined to achieve seven combinations and seven different transmittance adjustments.

[0034] By consulting the data, the on-site test and analysis of the brightness outside nearly 100 tunnels in Fujian, Guangdong, Chongqing, Shaanxi and other provinces (cities) were carried out. According to the on-site measurement results, the sky area percentage of the measured mountain highway tunnels is usually 0, and the test value is generally in The brightness outside the bamboo-cut tunnel entrance is usually between The brightness outside the end-wall portal tunnel is usually around Taking the segmentation of the one-way traffic tunnel lighting system as an example, it can be simply divided into entrance section lighting, transition section lighting, and middle section lighting.

[0035] The traffic design quantity selected in the experiment is For one-way traffic, the design speed is , the standard of illumination brightness in the middle section is ;by As the brightness test value outside the cave of the brightness detection unit 12, the entrance section design brightness is divided into the entrance section , entrance section The two lighting segments and their corresponding design brightness are calculated according to the formula:

[0036]

[0037]

[0038] Where:

[0039] ——Entrance section 1 brightness;

[0040] ——Entrance section brightness reduction coefficient, the reduction coefficient is selected as 0.070

[0041] ——Brightness outside the cave;

[0042] ——Entrance section 2 brightness.

[0043] The transition section should be divided into transition sections according to the principle of gradual decrease. , Transition , Transition The three lighting sections are designed to have brightness according to , , Perform calculations.

[0044] The technical solution of the utility model is applied to the lighting of the entrance section and transition section of the tunnel. On a sunny day, the fiber optic lighting module 2 is used as the main light source. The main control unit 11 calculates the lighting design brightness of the tunnel entrance section and the transition section. The brightness detection unit 12 detects the lighting brightness of the fiber optic lighting module 2 when it is not adjusted, and feeds back to the main control unit 11. The main control unit 11 instructs the lighting compensation unit 13 to control the transmittance adjustment mechanism 22 of the fiber optic lighting module 2 to adjust the lighting brightness to the lighting design brightness. When the lighting brightness of the fiber optic lighting module 2 does not reach the lighting design brightness, the main control unit 11 instructs the lighting compensation unit 13 to compensate the lighting brightness of the LED lighting module 3.

[0045] In rainy weather or at night, the LED lighting module 3 is used as the main light source, and the entrance section should be divided according to the principle of gradual increase. , entrance section , Transition , Transition , Transition The design brightness is determined by the main control unit 11 according to , , , , After calculation, the main control unit 11 instructs the lighting compensation unit 13 to control the LED lighting module 3 to adjust the lighting brightness of each lighting segment.

[0046] It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

[0047] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "top", "bottom", "upper", "lower", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

Claims

1. An optical fiber lighting compensation device, characterized in that: It comprises a control terminal (1), an optical fiber lighting module (2) and an LED lighting module (3); The control terminal (1) is provided with a main control unit (11), a brightness detection unit (12) and a lighting compensation unit (13); the lighting compensation unit (13) is provided with a first circuit interface (131) and a second circuit interface (132); The optical fiber lighting module (2) comprises an optical fiber interface (21), a light transmittance adjustment mechanism (22) and a reflector (23); The lighting compensation unit (13) of the control terminal (1) is electrically connected to the optical fiber lighting module (2) and the LED lighting module (3), and the brightness detection unit (12) is used to detect the brightness inside and outside the tunnel; The main control unit (11) receives brightness detection data from the brightness detection unit (12), and controls the lighting compensation unit (13) to adjust the lighting brightness of the optical fiber lighting module (2) and the LED lighting module (3), so that the brightness inside and outside the tunnel reaches a natural transition state; The transmittance adjustment mechanism (22) is arranged at the lower part of the optical fiber interface (21), the transmittance adjustment mechanism (22) is provided with a plurality of sliding grooves (221), lens sheets (222) with different transmittances are installed in the sliding grooves (221), the edge of the lens sheet (222) is provided with a magnet (2221), the transmittance adjustment mechanism (22) is also provided with an end cover (223), the end cover (223) is provided with a plurality of electromagnets (2231), the electromagnets (2231) and the magnets (2221) correspond one to one, the rear end surface of the end cover (223) is provided with a third circuit interface (2232), and the third circuit interface (2232) is electrically connected to a first circuit interface (131) of the lighting compensation unit (13).

2. The optical fiber lighting compensation device according to claim 1, characterized in that: The number of the sliding grooves (221) is no less than 3, and magnetic isolation plates (224) are provided between adjacent sliding grooves (221).

3. The optical fiber lighting compensation device according to claim 1, characterized in that: The LED lighting module (3) is electrically connected to the second circuit interface (132) of the lighting compensation unit (13).

4. The optical fiber lighting compensation device according to claim 1, characterized in that: The control terminal (1), the optical fiber lighting module (2) and the LED lighting module (3) are fixed on the tunnel wall by means of bolts.

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