Method for controlling lighting lamp based on optical fiber transmission

Abstract

The invention discloses a method for controlling a lighting lamp based on optical fiber transmission, and the method is characterized in that the method comprises the following steps: a light source is connected with the lighting lamp through an optical fiber module, and the light source emits an optical signal and transmits the optical signal to the lamp through the optical fiber module; a lens module is arranged in the optical fiber module, and the lens module focuses and couples an optical signal of a light source into an optical fiber; the lens module is also arranged at one end, close to the light source, in the optical fiber module; the optical fiber coupling efficiency is adjusted by adjusting the position of the lens module between the optical fiber module and the light source so as to change the illumination effect of the lamp. The lens module enables the number of light entering the optical fiber of the optical fiber module to be changed, the optical fiber coupling efficiency is adjusted, when the number of the light entering the optical fiber is large, the illumination intensity of the lamp is increased, and when the number of the light entering the optical fiber is small, the illumination intensity of the lamp is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of lamp lighting, and in particular to a method for controlling a lighting fixture based on optical fiber transmission. Background Art

[0002] In modern society, lighting technology is constantly innovating and developing, and people's requirements for lighting quality are getting higher and higher. As an advanced information transmission method, optical fiber transmission has the advantages of strong anti-electromagnetic interference ability, high data transmission rate, and good safety. Applying it to the field of lighting control can effectively improve the intelligence level and operation efficiency of the lighting system. As an emerging lighting method, optical fiber lamps have many advantages such as softness and plasticity, energy saving and high efficiency, safety and reliability. It uses the light-guiding characteristics of optical fibers to transmit light sources to specific locations for lighting.

[0003] However, when optical signals are transmitted in optical fibers, the optical power at the receiving end decreases due to absorption, scattering and radiation, causing the optical power to gradually weaken as the transmission distance increases, thereby affecting the quality of optical transmission and weakening the light intensity of the lamp, making it difficult to directly meet the lighting needs of the lamp. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a method for controlling lighting fixtures based on optical fiber transmission, which improves the coupling efficiency and transmission quality of optical signals, and also improves the illumination uniformity and illumination range.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a method for controlling lighting fixtures based on optical fiber transmission, comprising the following steps:

[0006] The light source establishes a connection with the lighting fixture through the optical fiber module, and the light source sends a light signal and transmits it to the lighting fixture through the optical fiber module;

[0007] The optical fiber module has a lens module therein, and the lens module focuses and couples the optical signal of the light source into the optical fiber;

[0008] The lens module is also arranged in the optical fiber module near one end of the light source;

[0009] The optical fiber coupling efficiency is adjusted by adjusting the position of the lens module between the optical fiber module and the light source to change the lighting effect of the lamp.

[0010] As a further improvement of the present invention: the light source is connected to the lamp through an optical fiber module, which includes multiple optical fiber modules, and any one of the optical fiber modules corresponds to a lamp. The light signal emitted by the light source is transmitted along a single optical fiber to the corresponding lamp to light up the lamp.

[0011] As a further improvement of the present invention: the output end of the optical fiber module also has a lens module, the lens module has a convex lens, the optical fiber module is connected to the lamp, and the lamp is also connected to the lens module by direct coupling.

[0012] As a further improvement of the present invention: the lamp is connected to the lens module in a coaxial and aligned manner, the optical signal transmitted by the optical fiber module enters the lamp for illumination, and the lens module converges the light to change the lighting effect of the lamp.

[0013] As a further improvement of the present invention: the lens module is connected to the lamp at an adjustable distance, and the illumination intensity of the lamp is adjusted by adjusting the distance between the lens module and the lamp. The distance between the lens module and the lamp is linearly related to the size of the light panel of the lamp, and the linear relationship has a linear function:

[0014] D=kd+b

[0015] Where D is the spot diameter, d is the distance between the lens module and the lamp, k and b are unknown coefficients, which can be obtained by fitting the experimental data using the least squares method.

[0016] As a further improvement of the present invention: the optical fiber module has a lens module inside, including an input end of the optical fiber module having a lens module, the lens module having a convex lens, and the lens module couples multiple beams of light from the light source into the single-mode optical fiber.

[0017] As a further improvement of the present invention: the step of adjusting the optical fiber coupling efficiency by adjusting the position of the lens module between the optical fiber module and the light source includes adjusting the position of the lens module between the optical fiber module and the light source to focus the light from the light source into the optical fiber core and adjust the optical fiber coupling efficiency.

[0018] As a further improvement of the present invention, the relationship between the optical fiber coupling efficiency and the position between the optical fiber module and the light source includes: the distance between the optical fiber module and the light source is linearly related to the optical fiber coupling efficiency, and the optical fiber coupling efficiency increases as the distance between the optical fiber module and the light source decreases, and has the following formula: T = -kx + b,

[0019] Wherein, T is the spot diameter, x is the distance between the lens module and the lamp, k and b are unknown coefficients, which can be obtained by fitting the experimental data using the least squares method.

[0020] As a further improvement of the present invention: the step of adjusting the optical fiber coupling efficiency by adjusting the position of the lens module between the optical fiber module and the light source further includes that the optical fiber coupling efficiency is the ratio of the optical power coupled into the optical fiber to the optical power received on the receiving plane of the lens module, and the optical fiber coupling efficiency T is calculated by the following formula:

[0021] T=POUT / P in ×100%,

[0022] P in =I / r 2

[0023] Among them, P OUT is the output optical power entering the fiber channel, P in is the input optical power, I is the light source luminosity, and r is the receiving plane area of ​​the lens module.

[0024] As a further improvement of the present invention: the optical fiber end face of the optical fiber module is aligned with the central axis of the convex lens in the lens module.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention uses an optical fiber module to transmit the light emitted by the light source to the lamp, and sets a lens module on the side of the optical fiber module close to the light source. By adjusting the position of the lens module between the optical fiber module and the light source, the light from the light source can be gathered into the optical fiber. The lens module changes the amount of light entering the optical fiber of the light source and the optical fiber module, and adjusts the optical fiber coupling efficiency. When the amount of light entering the optical fiber is large, the light intensity of the lamp increases, and when the amount of light entering the optical fiber is small, the light intensity of the lamp decreases.

[0027] 2. The present invention sets a lens module on the side of the optical fiber module close to the lamp. By adjusting the position of the lens module between the optical fiber module and the lamp and utilizing the focusing and diffusing properties of the convex lens, the convex lens diffuses the relatively concentrated light at the output end of the optical fiber, so that the light can cover a larger area, thereby improving the lighting effect of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the method flow of the present invention.

[0029] Figure 2 It is a schematic diagram of the system framework structure of the present invention.

[0030] Figure 3 It is a schematic diagram of the structure of the lamp of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In order to solve the technical problems in the prior art, the present invention is further described in conjunction with the accompanying drawings and embodiments:

[0033] like Figures 1 to 3 As shown, the embodiment of the present invention discloses a method for controlling a lighting fixture based on optical fiber transmission, comprising the following steps: a light source establishes a connection with the lighting fixture through an optical fiber module, the light source emits an optical signal and transmits it to the lighting fixture through the optical fiber module; the optical fiber module has a lens module, and the lens module focuses and couples the optical signal of the light source into the optical fiber; the lens module is also arranged in the optical fiber module near the end of the light source; the optical fiber coupling efficiency is adjusted by adjusting the position of the lens module between the optical fiber module and the light source to change the lighting effect of the lamp. In this embodiment, the light emitted by the light source is transmitted to the lamp by using an optical fiber module, and the lens module is arranged on the side of the optical fiber module near the light source. By adjusting the position of the lens module between the optical fiber module and the light source, the light of the light source can be gathered into the optical fiber. The lens module changes the amount of light entering the optical fiber of the light source entering the optical fiber module, and adjusts the optical fiber coupling efficiency. When the amount of light entering the optical fiber is large, the lighting intensity of the lamp increases, and when the amount of light entering the optical fiber is small, the lighting intensity of the lamp decreases.

[0034] In one embodiment of the present application, the light source is connected to the lamp through the optical fiber module, including multiple optical fiber modules, and any one of the optical fiber modules corresponds to a lamp, and the light signal emitted by the light source is transmitted to the corresponding lamp along a single optical fiber to light up the lamp. In this embodiment, a strong point light source can be coupled with multiple optical fiber modules to transmit the light source light to multiple lamps respectively, so that multiple lamps can achieve lighting effects.

[0035] Furthermore, the output end of the optical fiber module also has a lens module, the lens module has a convex lens, the optical fiber module is connected to the lamp, and the lamp is also connected to the lens module by direct coupling. Furthermore, the lamp is connected to the lens module in a coaxial and aligned manner, and the optical signal transmitted by the optical fiber module enters the lamp for illumination, and the lens module converges the light to change the lighting effect of the lamp.

[0036] In this embodiment, direct coupling is to connect the output end of the optical fiber directly and tightly with the lens module. This method has a simple structure, but it is necessary to ensure the coaxiality and alignment accuracy of the optical fiber and the convex lens during installation to avoid light loss and leakage. The optical fiber module and the lens module can also be connected by indirect coupling through a certain mechanical structure or optical element, but the indirect coupling method will increase the cost of use. It can be seen from the experimental data that the optical fiber lamp without a convex lens has a higher illumination at a close distance, but with the increase of the distance, the illumination drops rapidly, and the illumination range is small. The convex lens in the lens module The lens can be adjusted and set. The lamp with a convex lens installed at the output end of the optical fiber module has a significantly expanded illumination range under the same input optical power, and the illumination intensity remains relatively uniform within a certain distance. By adjusting the position of the lens module between the optical fiber module and the lamp, and utilizing the focusing and astigmatism characteristics of the convex lens, when the convex lens is away from the output end of the optical fiber, the refraction angle of the light after passing through the lens gradually decreases, the light of the lamp becomes more divergent, the light intensity is relatively low, and the illumination range is expanded. The convex lens diffuses the relatively concentrated light at the output end of the optical fiber, so that the light of the lamp can cover a larger area, which is suitable for large-area lighting applications;

[0037] When the convex lens is close to the output end of the optical fiber, the light will form a larger refraction angle after passing through the lens, making the light of the lamp more concentrated and the light intensity increased, but the lighting range of the lamp is relatively small, which is suitable for scenes that require high-brightness local lighting; at a moderate distance, the convex lens can achieve a balance between the light intensity and the lighting range of the indoor lamp. The lamp can not only ensure a certain light intensity, but also cover a larger area, and the light uniformity is also good. By adjusting the position of the convex lens in the lens module between the optical fiber module and the lamp, the lighting effect of the lamp can be improved.

[0038] In one embodiment of the present application, the lens module is connected to the lamp at an adjustable distance, and the illumination intensity of the lamp is adjusted by adjusting the distance between the lens module and the lamp. The distance between the lens module and the lamp is linearly related to the size of the light panel of the lamp, and the linear relationship has a linear function:

[0039] D=kd+b

[0040] Where D is the spot diameter, d is the distance between the lens module and the lamp, k and b are unknown coefficients, which can be obtained by fitting the experimental data using the least squares method.

[0041] In this embodiment, by analyzing the light spot photos taken when the optical fiber passes through the convex lens, it can be seen that the size and shape of the light spot change significantly with the change of the distance of the convex lens. At the close distance between the convex lens and the output end of the optical fiber, the light spot is small and more concentrated, and is circular or elliptical in shape. As the distance increases, the light spot gradually becomes larger, the shape gradually becomes irregular, and the edge becomes blurred. When the distance exceeds a certain range, the light spot is too large and the light intensity is too low, and the effective lighting meaning is lost. By limiting the distance between the optical fiber module and the lamp, the position of the convex lens in the lens module is adjusted to change the illumination of the lamp. Therefore, it is necessary to select a suitable convex lens distance according to the required illumination range. The convex lens is a transparent lens with a thick center and a thin edge. Its main function is to converge the light. When the convex lens is close to the output end of the optical fiber, the light will form a larger refraction angle after passing through the convex lens, making the light more concentrated, the light intensity increased, but the illumination range is relatively small; as the convex lens moves away from the output end of the optical fiber, the refraction angle of the light after passing through the lens gradually decreases, the light becomes more divergent, the light intensity is relatively low, but the illumination range is expanded.

[0042] Assume that the distance between the convex lens and the output end of the optical fiber is d, and the spot diameter is D. According to optical principles, there is a certain linear relationship between the spot diameter and the distance from the convex lens. The spot diameters at different convex lens distances are measured experimentally to obtain a series of data points. Mathematical tools (such as least squares method, polynomial fitting, etc.) are used to fit the experimental data to obtain the functional relationship between the spot diameter and the convex lens distance.

[0043] In one embodiment of the present application, the optical fiber module has a lens module, including a lens module at the input end of the optical fiber module, the lens module has a convex lens, and the lens module couples multiple beams of light from the light source into the single-mode optical fiber. Further, the optical fiber coupling efficiency is adjusted by adjusting the position of the lens module between the optical fiber module and the light source, including adjusting the optical fiber coupling efficiency by adjusting the position of the lens module between the optical fiber module and the light source to focus the light from the light source into the optical fiber core.

[0044] In the present embodiment, the convex lens can focus the light so that the light from the light source enters the optical fiber core more accurately. By adjusting the position and angle of the convex lens, efficient coupling between the optical fiber and the light source can be achieved, reducing the loss of the optical signal, thereby improving the transmission efficiency. Since the light source is divergent, this means that as the propagation distance increases, the area of ​​the convex lens irradiated by the light increases, and the convex lens is a transparent lens with a thick center and thin edges. Its main optical property is to produce a converging effect on the light. The refraction angles of the convex lens at various positions are inconsistent. After the light is refracted by the convex lens, the position of the lens module between the optical fiber module and the light source can be adjusted to adjust the flux of the light entering the optical fiber after passing through the convex lens.

[0045] In one embodiment of the present application, the relationship between the optical fiber coupling efficiency and the position between the optical fiber module and the light source includes: the distance between the optical fiber module and the light source is linearly related to the optical fiber coupling efficiency, and the optical fiber coupling efficiency T increases as the distance between the optical fiber module and the light source decreases, and has the following formula: T = -kx + b,

[0046] Wherein, T is the spot diameter, x is the distance between the lens module and the lamp, k and b are unknown coefficients, which can be obtained by fitting the experimental data using the least squares method.

[0047] In one embodiment of the present application, the step of adjusting the optical fiber coupling efficiency by adjusting the position of the lens module between the optical fiber module and the light source further includes that the optical fiber coupling efficiency is the ratio of the optical power coupled into the optical fiber to the optical power received on the receiving plane of the lens module, and the optical fiber coupling efficiency T is calculated by the following formula:

[0048] T=P OUT / P in ×100%;

[0049] P in =I / r 2 ;

[0050] Among them, P OUT is the output optical power entering the fiber channel, P in is the input optical power, I is the light source luminosity, and r is the receiving plane area of ​​the lens module.

[0051] In one embodiment of the present application, the optical fiber end face of the optical fiber module is aligned with the central axis of the convex lens in the lens module.

[0052] In one embodiment of the present application, the curvature of the convex lens at the input end of the optical fiber module is smaller than the curvature of the convex lens at the output end of the optical fiber module. The convex lens with a smaller curvature radius has a stronger light focusing ability and can produce higher illuminance at a short distance; while the convex lens with a larger curvature radius can provide a wider illumination range and more uniform light distribution.

[0053] In an embodiment of the present invention, a system for controlling lighting fixtures based on optical fiber transmission is also provided. The detection system is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable. This embodiment provides a system for controlling lighting fixtures based on optical fiber transmission, comprising: a light source for emitting an optical signal;

[0054] An optical fiber module is used to transmit the optical signal emitted by the transmission light source to the lamp;

[0055] The lens module focuses the light signal of the light source and couples it into the optical fiber and focuses the light output from the optical fiber;

[0056] A lamp for outputting light output by an optical fiber;

[0057] The controller is used to control and adjust the convex lens in the lens module.

[0058] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0059] An embodiment of the present invention further provides a computer-readable storage medium storing a computer program, which, when executed by a processor, enables the processor to execute a method for controlling a lighting fixture based on optical fiber transmission as described in one or more of the above embodiments.

[0060] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0061] The light source establishes a connection with the lighting fixture through the optical fiber module, and the light source sends a light signal and transmits it to the lighting fixture through the optical fiber module;

[0062] The optical fiber module has a lens module therein, and the lens module focuses and couples the optical signal of the light source into the optical fiber;

[0063] The lens module is also arranged in the optical fiber module near one end of the light source;

[0064] The optical fiber coupling efficiency is adjusted by adjusting the position of the lens module between the optical fiber module and the light source to change the lighting effect of the lamp.

[0065] Optionally, in this embodiment, the storage medium may include but is not limited to: a USB flash drive, a read-only memory ROM, a random access memory RAM, a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

[0066] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software module may reside in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor so that the processor can read and write information from / to the storage medium. In an alternative, a storage medium may be integrated into a processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In an alternative, the processor and the storage medium may reside in a user terminal as discrete components.

[0067] In summary, after reading the present invention document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the present invention without creative mental work, which all fall within the scope of protection of the present invention.

Claims

1. A method for controlling lighting fixtures based on optical fiber transmission, characterized in that: The following steps are involved: The light source establishes a connection with the lighting fixture through the optical fiber module, and the light source sends a light signal and transmits it to the lighting fixture through the optical fiber module; The optical fiber module has a lens module, which focuses and couples the optical signal of the light source into the optical fiber; the lens module is also arranged in the optical fiber module near one end of the light source; The optical fiber coupling efficiency is adjusted by adjusting the position of the lens module between the optical fiber module and the light source to change the lighting effect of the lamp.

2. The method for controlling lighting fixtures based on optical fiber transmission according to claim 1, characterized in that: The light source is connected to the lamp through the optical fiber module, which includes multiple optical fiber modules, and any one of the optical fiber modules corresponds to a lamp. The light signal emitted by the light source is transmitted along a single optical fiber to the corresponding lamp to light up the lamp.

3. The method for controlling lighting fixtures based on optical fiber transmission according to claim 2, characterized in that: The output end of the optical fiber module also has a lens module, and the lens module has a convex lens. The optical fiber module is connected to a lamp, and the lamp is also connected to the lens module by direct coupling.

4. The method for controlling lighting fixtures based on optical fiber transmission according to claim 3, characterized in that: The lamp is connected to the lens module in a coaxial and aligned manner, and the optical signal transmitted by the optical fiber module enters the lamp for illumination, and the lens module converges the light to change the lighting effect of the lamp.

5. The method for controlling lighting fixtures based on optical fiber transmission according to claim 4, characterized in that: The lens module is connected to the lamp at an adjustable distance. The illumination intensity of the lamp is adjusted by adjusting the distance between the lens module and the lamp. The distance between the lens module and the lamp is linearly related to the size of the light panel of the lamp. The linear relationship has a linear function: D=kd+b Where D is the spot diameter, d is the distance between the lens module and the lamp, k and b are unknown coefficients, which can be obtained by fitting the experimental data using the least squares method.

6. The method for controlling lighting fixtures based on optical fiber transmission according to claim 1, characterized in that: The optical fiber module has a lens module inside, including an input end of the optical fiber module having a lens module, the lens module having a convex lens, and the lens module couples multiple beams of light from a light source into the single-mode optical fiber.

7. The method for controlling lighting fixtures based on optical fiber transmission according to claim 6, characterized in that: The step of adjusting the optical fiber coupling efficiency by adjusting the position of the lens module between the optical fiber module and the light source includes adjusting the position of the lens module between the optical fiber module and the light source to focus the light from the light source into the optical fiber core and adjust the optical fiber coupling efficiency.

8. The method for controlling lighting fixtures based on optical fiber transmission according to claim 7, characterized in that: The relationship between the optical fiber coupling efficiency and the position between the optical fiber module and the light source includes: the distance between the optical fiber module and the light source is linearly related to the optical fiber coupling efficiency, and the optical fiber coupling efficiency increases as the distance between the optical fiber module and the light source decreases, and has the following formula: T = -kx + b, Wherein, T is the spot diameter, x is the distance between the lens module and the lamp, k and b are unknown coefficients, which can be obtained by fitting the experimental data using the least squares method.

9. The method for controlling lighting fixtures based on optical fiber transmission according to claim 8, characterized in that: The step of adjusting the optical fiber coupling efficiency by adjusting the position of the lens module between the optical fiber module and the light source also includes that the optical fiber coupling efficiency is a ratio of the optical power coupled into the optical fiber to the optical power received on the receiving plane of the lens module, and the optical fiber coupling efficiency T is calculated by the following formula: T=P OUT / P in ×100%, P in =I / r 2 Among them, P OUT is the output optical power entering the fiber channel, P in is the input optical power, I is the light source luminosity, and r is the receiving plane area of ​​the lens module.

10. The method for controlling lighting fixtures based on optical fiber transmission according to claim 9, characterized in that: The optical fiber end face of the optical fiber module is aligned with the central axis of the convex lens in the lens module.

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