A multi-dimensional submerged plant supplementary lighting device

Abstract

The present invention discloses a multi-dimensional underwater plant light supplementing device, belonging to the technical field of underwater plants, which includes a sunlight introduction and lighting machine, a special optical fiber conduction fiber, and a sunlight divergence light source; the sunlight introduction and lighting machine is configured to collect solar energy on the water surface; the special optical fiber conduction fiber is configured to stably transmit the collected solar energy to the growth area of underwater plants; the sunlight divergence light source is configured to uniformly and precisely diverge the solar energy transmitted through the special optical fiber conduction fiber. The present invention solves the problems of seriously threatening the surrounding water environment and personnel safety, increasing the maintenance cost, and reducing the equipment use efficiency in the prior art. The present invention adopts a combination of passive light and active light to achieve precise light supplement for underwater plants, promote the improvement of the photosynthesis efficiency of plants, accelerate the growth rate of plants, and improve the biodiversity and overall stability of the water ecosystem.

Description

Technical Field

[0001] The invention belongs to the technical field of submerged plants and relates to a multi-dimensional submerged plant lighting device. Background Art

[0002] In the balance and stability of the ecosystem of shallow lakes, submerged plants occupy a vital position and are an indispensable key component of the entire ecosystem. Submerged plants play an important multi-dimensional role in shallow lakes, and actively participate in the process of water quality improvement through their unique physiological functions and ecological characteristics. Specifically, submerged plants can efficiently absorb nutrients in the water body, including but not limited to eutrophication-related elements such as nitrogen and phosphorus, thereby effectively reducing the nutrient load in the water body and inhibiting adverse phenomena such as excessive algae reproduction. At the same time, submerged plants also play an important role in stabilizing sediments. Their roots can anchor the bottom and prevent sediment resuspension caused by external forces such as water flow, wind and waves, thereby maintaining water transparency and water quality stability.

[0003] However, the current ecological environment is in a grim situation, and the eutrophication problem is becoming increasingly prominent, which has caused a serious impact on the shallow lake ecosystem. Affected by eutrophication, more and more shallow lakes have seen a gradual decrease or even complete disappearance of submerged plants, which poses a huge threat to the health and stability of the lake ecosystem. The extinction of submerged plants is the result of the interaction of multiple complex factors, among which the factor of too low underwater light plays a key role in the decline of submerged plants. Further analysis shows that phytoplankton, attached organisms and suspended particles are the main factors affecting light attenuation in lakes. Phytoplankton reproduces in large numbers in a suitable eutrophic environment, forming a water bloom phenomenon, which seriously hinders the propagation of light in the water; attached organisms attach to the surface of submerged plants in large numbers, which not only affects plant photosynthesis, but also interferes with the penetration of light to a certain extent; the presence of suspended particles in large quantities in the water increases the turbidity of the water, causing the underwater light conditions to continue to deteriorate.

[0004] Given the irreplaceable significance of submerged macrophytes in maintaining the health of shallow lake ecosystems, they have received extensive attention and high emphasis in recent years. Under the framework of eutrophic lake ecological restoration, the restoration of submerged macrophytes has become one of the core links and important measures. Analyzed from a theoretical perspective, reducing the water body nutrient level and improving the underwater light condition are the fundamental ways to restore submerged vegetation. However, in the actual operation process, the special environment and complex situations of urban lakes have made the restoration of submerged macrophytes face numerous difficulties and challenges. Urban lakes are restricted by various factors. For example, due to reasons such as urban sewage discharge and pollutants carried by surface runoff, the nutrient load has been at a high level for a long time and is difficult to effectively reduce, which has become one of the important obstacles to the restoration of submerged macrophytes. At the same time, human intervention during urban construction, such as artificially adjusting the high water level for flood control, landscape and other purposes, has changed the original suitable growth water level of submerged macrophytes and had a negative impact on their growth. In addition, the limited area of the lakeside region caused by urban planning restricts the growth space of submerged macrophytes and further increases the difficulty of the restoration work. Moreover, the frequent occurrence of algal blooms has severely damaged the underwater light condition and water quality environment, which is extremely unfavorable to the survival and reproduction of submerged macrophytes. Based on the above situation, through in-depth research and analysis, using artificial light supplementation to improve underwater light may be a potential method for restoring submerged macrophytes in urban lakes and is worthy of further exploration and practice.

[0005] In the current market environment, the field of underwater light compensation equipment shows a development trend of alternation between old and new technologies. Currently, the traditional underwater light compensation equipment widely existing on the market mainly uses LED lamp groups as the light source. Although this design can meet some lighting needs to a certain extent, there are many serious problems. Since the traditional equipment requires an external power supply, this design feature leads to significant safety hazards in the actual application process. The external power supply may be corroded and leak electricity due to being soaked in water for a long time, which will not only damage the equipment itself, but may also pose a serious threat to the surrounding water environment and personnel safety. At the same time, the design of the external power supply makes the maintenance work of the equipment extremely complex and difficult. Each maintenance requires professional personnel to carry out complex circuit detection and repair operations, which not only increases the maintenance cost, but also prolongs the maintenance cycle of the equipment and reduces the use efficiency of the equipment. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-dimensional light compensation device for submerged macrophytes, which combines passive light and active light to achieve precise light compensation for submerged macrophytes underwater, promote the improvement of the photosynthesis efficiency of plants, accelerate the growth rate of plants, improve the biodiversity and overall stability of the water ecosystem, and solve the problems raised in the above background technology.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A multi - dimensional submerged plant supplementary lighting device, comprising a sunlight introduction and lighting machine, special optical fiber conduction fibers, and a sunlight divergence light source;

[0009] The sunlight introduction and lighting machine is configured to collect solar energy on the water surface;

[0010] The special optical fiber conduction fibers are configured to stably transmit the collected solar energy to the growth area of submerged plants underwater;

[0011] The sunlight divergence light source is configured to uniformly and precisely diverge the solar energy transmitted through the special optical fiber conduction fibers;

[0012] Among them, the lighting conditions of the sunlight divergence light source are precisely controlled according to the growth data of submerged plants, and the light intensity, lighting time, and light of different wavelengths are dynamically adjusted.

[0013] Preferably, collecting solar energy on the water surface includes:

[0014] Using a high - precision optical lens group, through special curved surface design and optical materials, effectively focus sunlight with different incident angles on the water surface, so that as much light energy as possible is collected;

[0015] Real - time monitor the change of the sun's position through a high - precision sensor, and precisely control the orientation of the sunlight introduction and lighting machine according to a preset algorithm, so that the sunlight introduction and lighting machine always maintains the best incident angle with the sun's rays, and efficiently collect sunlight throughout the day without interruption;

[0016] Use an optical coupling device to preliminarily integrate and optimize the converged light, reduce the energy loss during the transmission of light to subsequent components, and make the light energy be transmitted to the subsequent optical waveguide system in the most efficient way.

[0017] Preferably, real - time monitor the change of the sun's position through a high - precision sensor, and precisely control the orientation of the sunlight introduction and lighting machine according to a preset algorithm, including:

[0018] Use a light intensity sensor to real - time monitor and collect the lighting conditions of sunlight irradiating the sunlight introduction and lighting machine, and obtain sunlight illumination intensity data;

[0019] Use an attitude sensor to real - time monitor and collect the attitude conditions of sunlight irradiating the sunlight introduction and lighting machine, obtain sun position change data, and process the sun position change data;

[0020] Construct a mathematical model based on the sun's trajectory, input the sun position change data into the mathematical model based on the sun's trajectory, analyze the sun position change data according to the mathematical model based on the sun's trajectory, and calculate the real - time position of the sun;

[0021] The controller generates control instructions according to the calculated real-time position of the sun, and controls the orientation of the sunlight-introducing daylighting machine according to the control instructions, so that the sunlight-introducing daylighting machine adjusts the daylighting angle, and the sunlight is tracked in real time by the tracker to form a closed-loop control, so that the sunlight-introducing daylighting machine always maintains the best incident angle with the sun rays.

[0022] Preferably, a mathematical model based on the sun's trajectory is constructed, including:

[0023] Collect historical data of the sun's trajectory, and divide the collected historical data of the sun's trajectory into a training set and a test set;

[0024] Based on deep learning technology, use the training set to train the deep learning model, so that the deep learning model autonomously learns the sun position calculation behavior and predicts the sun position to determine the mathematical model based on the sun's trajectory;

[0025] Perform performance testing on the mathematical model based on the sun's trajectory based on the test set to judge whether the mathematical model based on the sun's trajectory can achieve the expected effect;

[0026] According to the test results, adjust and optimize the parameters and structure of the mathematical model based on the sun's trajectory, determine the optimal mathematical model based on the sun's trajectory, and deploy the optimal mathematical model based on the sun's trajectory to predict the sun position and calculate the real-time position of the sun.

[0027] Preferably, the special optical fiber conducting fiber is made of special optical glass or polymer material with high light transmittance and low attenuation characteristics, and the special optical fiber conducting fiber includes a core layer and a cladding layer;

[0028] The core layer is configured to conduct light, so that light can be transmitted with low loss inside the core layer through the principle of total internal reflection;

[0029] The cladding layer is configured to protect the core layer and enhance the mechanical strength of the special optical fiber conducting fiber, so that the lower refractive index prevents light from escaping from the core layer.

[0030] Preferably, a high-strength, water-resistant and flexible protective coating is provided on the outside of the special optical fiber conducting fiber to protect the special optical fiber conducting fiber from external force damage and maintain stable optical transmission performance of the special optical fiber conducting fiber under bending and stretching conditions.

[0031] Preferably, the solar energy transmitted through the special optical fiber conducting fiber is evenly and accurately diverged, including:

[0032] Real-time monitor and collect the morphological characteristics, biomass and growth position of underwater submerged plants to obtain submerged plant growth data;

[0033] Dynamically adjust and control the underwater scattering device according to the growth data of submerged plants, so that the sunlight diverging light source diverges solar energy evenly and precisely.

[0034] Preferably, dynamically adjusting and controlling the underwater scattering device includes:

[0035] Precisely control the lighting conditions of the sunlight diverging light source according to the growth data of submerged plants, dynamically adjust the light intensity, lighting time and light of different wavelengths, so that the sunlight diverging light source adapts to the growth state of submerged plants.

[0036] Preferably, precisely controlling the lighting conditions of the sunlight diverging light source according to the growth data of submerged plants and dynamically adjusting the light intensity, lighting time and light of different wavelengths includes:

[0037] Obtain the growth distribution area of submerged plants. At the same time, obtain the effective irradiation range of the sunlight diverging light source, and determine the sunlight irradiation blind area for submerged plants based on the range difference between the growth distribution area and the effective irradiation range;

[0038] Determine the deployment position of the bionic light source based on the sunlight irradiation blind area, and give deployment guidance to the bionic light source based on the deployment position;

[0039] Determine the types of submerged plants in each growth distribution area based on the deployment guidance results, and crawl the growth stages of the corresponding submerged plants and the biological clocks and growth requirements corresponding to each growth stage from the Internet based on the types of submerged plants;

[0040] Determine the supplementary lighting time intervals for different types of submerged plants based on the biological clocks, analyze the growth requirements, and determine the supplementary lighting intensities at different supplementary lighting moments within the supplementary lighting time intervals for different types of submerged plants at different growth stages;

[0041] Construct a differential supplementary lighting control strategy for the sunlight diverging light source and the bionic light source in different growth distribution areas based on the supplementary lighting time intervals and the supplementary lighting intensities at different supplementary lighting moments, and control the sunlight diverging light source and the bionic light source to coordinately supplement light to the submerged plants in each growth distribution area based on the differential supplementary lighting control strategy;

[0042] Based on the control results, use the lighting sensors pre-deployed in each growth distribution area to real-time monitor the actual supplementary lighting intensity at each growth stage, and determine the difference comparison between the actual supplementary lighting intensity and the supplementary lighting intensity at the corresponding different supplementary lighting moments;

[0043] If the difference comparison result is greater than the preset threshold, adaptively and dynamically correct the supplementary lighting intensity at the determined different supplementary lighting moments based on the actual supplementary lighting intensity;

[0044] Otherwise, continuously monitor the submerged plants in each growth distribution area until the light supplement operation for the entire life cycle is completed.

[0045] Preferably, when evenly and precisely diverging the solar energy transmitted through the special optical fiber conducting fiber, it includes:

[0046] Obtain multiple measurement points of the submerged plants and collect the light intensity of each measurement point of the submerged plants;

[0047] Calculate the coefficient of variation based on the light intensity of each measurement point of the submerged plants;

[0048] Construct a light uniformity evaluation function based on the coefficient of variation;

[0049] Evaluate the uniformity of the current solar energy according to the light uniformity evaluation function;

[0050] When the value range of the light uniformity evaluation function is equal to or greater than the first preset threshold and less than or equal to 1, it is determined that the uniformity of the current solar energy is qualified;

[0051] When the value range of the light uniformity evaluation function is less than or equal to the second preset threshold and equal to or greater than 0, it is determined that the uniformity of the current solar energy is unqualified and an alarm operation is performed;

[0052] Wherein, the first preset threshold is greater than the second preset threshold.

[0053] Compared with the prior art, the beneficial effects of the present invention are:

[0054] The present invention adopts advanced optical materials and structures to minimize loss phenomena such as scattering and absorption of light during transmission, improve the utilization efficiency of natural light, apply interdisciplinary knowledge such as fluid mechanics and optical engineering to customize and adjust the optical network, and through precise calculation and simulation, ensure that the layout and parameter settings of the optical network can adapt to different water environments, enabling as much light as possible to accurately reach the target area, creating a sufficient and uniform natural light environment for submerged plants, meeting their basic light requirements for growth and development, carefully selecting the artificial light source wavelength and light intensity suitable for the specific growth needs of submerged plants to ensure that when natural light cannot meet the plant growth requirements, necessary lighting supplements can be provided in a timely manner, and adopting a combination of passive light + active light to achieve precise light supplement for submerged plants underwater. It can not only effectively prevent and alleviate problems such as slow growth and disease occurrence of submerged plants caused by insufficient light, but also promote the improvement of the photosynthesis efficiency of plants and accelerate the growth rate of plants by precisely regulating light parameters, thereby improving the biodiversity and overall stability of the water ecosystem and providing strong technical support for the water ecological restoration project. Description of the Drawings

[0055] Figure 1 This is the module structure diagram of the multi-dimensional submerged plant light supplement device of the present invention. Specific implementation mode

[0056] In order to solve the problems of existing underwater light compensation devices, using existing technologies not only causes damage to the devices themselves, but also poses a serious threat to the surrounding water environment and personnel safety. At the same time, the maintenance work is extremely complex and difficult, which not only increases the maintenance cost, but also prolongs the maintenance cycle of the devices, and reduces the use efficiency of the devices. In contrast, please refer to Figure 1 , an embodiment of the present invention provides the following technical solutions:

[0057] A multi-dimensional submerged plant light supplement device includes a sunlight introduction and lighting machine, a special optical fiber conduction fiber, and a sunlight divergence light source.

[0058] It should be noted that the combined mode of "passive light + active light" is adopted, including a sunlight automatic tracking lighting system and a solar photovoltaic panel. The brightness is introduced underwater through the special optical fiber conduction fiber, realizing the ideal state of complete isolation of water and electricity, fundamentally eliminating the safety hazards caused by the contact of water and electricity, greatly improving the safety and reliability of the device in the actual operation process, providing a strong guarantee for the long-term stable operation of the underwater light compensation device, thus providing practical and effective technical support for the restoration work of submerged plants in water ecological restoration, promoting the healthy development of the water ecological restoration industry, and meeting the growing market demand.

[0059] Specifically, plant photosynthesis mainly depends on blue light and red light. However, in the water environment, the attenuation of red light and blue light is significant, and this attenuation process has a non-negligible impact on the growth and distribution of submerged plants. Especially in waters with high turbidity, the lighting conditions faced by submerged plants are more severe. Research shows that by increasing the supplementary light intensity, it is expected to significantly improve the survival rate of submerged plant seedlings and play a positive promoting role in their growth process. Therefore, the submerged plant Vallisneria natans is selected as the research object. As an important primary producer in the water ecosystem, Vallisneria natans plays an irreplaceable and crucial role in the treatment of eutrophic waters. A representative natural water body will be carefully selected as the experimental site, fully considering various ecological indicators of the water body and surrounding environmental factors to ensure the scientificity and reliability of the experimental results. An underwater lighting environment with different wavelengths will be constructed using colored films, specifically including three different wavelength conditions of red light, blue light, and white light, to simulate the effects of different spectral characteristics on the growth of submerged plants. At the same time, multiple precise light intensity gradients will be set, comprehensively covering different intensity ranges from low to high, to systematically study the influence law of light intensity changes on the growth of Vallisneria natans seedlings. During the experiment, multiple growth indicators of Vallisneria natans seedlings will be strictly monitored and detailed records will be made, including but not limited to the survival rate of seedlings, changes in biomass such as chlorophyll and dissolved oxygen content, and key parameters such as root length and plant height. Through careful comparison and in-depth analysis of these parameters under different lighting conditions, using advanced data analysis methods and statistical means, the combination of supplementary light wavelength and light intensity most suitable for the growth of submerged plants will be accurately selected, providing a scientific and accurate basis for lighting parameters for subsequent supplementary lighting of submerged plants and submerged plant restoration projects.

[0060] The sunlight introduction daylighting machine is configured to collect solar energy on the water surface.

[0061] It should be noted that a professional optical simulation software is used to comprehensively simulate the performance and optimize the analysis of the key optical components inside the sunlight introduction daylighting machine, so as to ensure that the sunlight introduction daylighting machine can achieve the optimal daylighting effect under various complex environmental conditions, provide sufficient and stable light source input for the entire underwater sunlight introduction system, and effectively promote the photosynthesis and growth and development of submerged plants in the water ecosystem.

[0062] In this embodiment, collecting solar energy on the water surface includes:

[0063] A high-precision optical lens group is adopted to effectively focus sunlight with different incident angles on the water surface through special curved surface design and optical materials, greatly improving the light convergence efficiency and enabling as much solar energy as possible to be collected;

[0064] The position change of the sun is monitored in real time through high-precision sensors, and the orientation of the sunlight guiding and collecting machine is precisely controlled according to a preset algorithm, so that the sunlight guiding and collecting machine always maintains the best incident angle with the sun's rays, and the sunlight is efficiently collected throughout the day without interruption, achieving efficient all-day lighting;

[0065] An optical coupling device is used to preliminarily integrate and optimize the converged light, reduce the energy loss of the light during transmission to subsequent components, and enable the light energy to be transmitted to the subsequent optical guiding system in the most efficient manner.

[0066] It should be noted that through the careful design and optimization of each part of the sunlight guiding and collecting machine and in-depth analysis with the help of professional simulation software, it is ensured that the sunlight guiding and collecting machine can operate stably and reliably in the actual application scenario, effectively adapt to the changes in different water surface environments and lighting conditions, provide continuous and high-quality sunlight supply for the underwater ecosystem, and become the key technical support in the water ecological restoration project.

[0067] In this embodiment, the position change of the sun is monitored in real time through high-precision sensors, and the orientation of the sunlight guiding and collecting machine is precisely controlled according to a preset algorithm, including:

[0068] A light intensity sensor is used to monitor and collect the lighting conditions of the sunlight irradiating the sunlight guiding and collecting machine in real time, and obtain the sunlight intensity data;

[0069] An attitude sensor is used to monitor and collect the attitude conditions of the sunlight irradiating the sunlight guiding and collecting machine in real time, obtain the sun position change data, and process the sun position change data;

[0070] A mathematical model based on the sun's trajectory is constructed, the sun position change data is input into the mathematical model based on the sun's trajectory, and the sun position change data is analyzed according to the mathematical model based on the sun's trajectory to calculate the real-time position of the sun;

[0071] The controller generates a control instruction according to the calculated real-time position of the sun, controls the orientation of the sunlight guiding and collecting machine according to the control instruction, adjusts the lighting angle of the sunlight guiding and collecting machine, and tracks the sunlight in real time through a tracker to form a closed-loop control, so that the sunlight guiding and collecting machine always maintains the best incident angle with the sun's rays.

[0072] In this embodiment, constructing a mathematical model based on the sun's trajectory includes:

[0073] Collect historical data of the sun's trajectory, divide the collected historical data of the sun's trajectory, and divide the historical data of the sun's trajectory into a training set and a test set;

[0074] Based on deep learning technology, a training set is used to train a deep learning model, enabling the deep learning model to autonomously learn the behavior of calculating the sun's position, predict the sun's position, and determine a mathematical model based on the sun's trajectory;

[0075] The performance of the mathematical model based on the sun's trajectory is tested based on a test set to determine whether the mathematical model based on the sun's trajectory can achieve the expected effect;

[0076] According to the test results, the parameters and structure of the mathematical model based on the sun's trajectory are adjusted and optimized to determine the optimal mathematical model based on the sun's trajectory, and the optimal mathematical model based on the sun's trajectory is deployed to predict the sun's position and calculate the real-time position of the sun.

[0077] The special optical fiber conduction fiber is configured to stably transmit the collected solar energy to the underwater submerged plant growth area;

[0078] In this embodiment, the special optical fiber conduction fiber is made of special optical glass or polymer material with high light transmittance and low attenuation characteristics. Its material has been finely optimized to ensure that it can maintain good optical performance in the long-term underwater environment and effectively resist the adverse effects of water corrosion, microbial erosion, and water pressure changes on light transmission.

[0079] The special optical fiber conduction fiber includes a core layer and a cladding layer;

[0080] The core layer is responsible for the efficient conduction of light. Its refractive index has been precisely adjusted so that light can achieve low-loss transmission inside the core layer through the principle of total internal reflection;

[0081] The cladding layer plays a role in protecting the core layer and enhancing the mechanical strength of the special optical fiber conduction fiber. At the same time, its lower refractive index can effectively prevent light from escaping from the core layer, further improving the light transmission efficiency.

[0082] In this embodiment, a high-strength, water-resistant, and flexible protective coating is provided on the outside of the special optical fiber conduction fiber to protect the special optical fiber conduction fiber from external damage and maintain stable optical transmission performance even when the special optical fiber conduction fiber is bent or stretched.

[0083] It should be noted that to ensure the convenience of laying and installing the special optical fiber conducting fiber in the complex underwater environment, a protective coating with high strength, water resistance and good flexibility is also equipped on its exterior. This coating can not only protect the special optical fiber conducting fiber from external damage, but also ensure that the special optical fiber conducting fiber maintains stable optical transmission performance under bending, stretching and other conditions. At the connection parts with the sunlight introduction lighting machine and the underwater scattering device, a high-precision coupling structure design is adopted to ensure that the transmission loss of light energy between each component is minimized and seamless docking is achieved. Through the comprehensive and meticulous design and optimization of the special optical fiber conducting fiber from materials to structure, as well as strict performance testing and simulation analysis, it is ensured that it can operate reliably in the underwater sunlight introduction equipment, accurately transmit sufficient light energy to the submerged plant growth area, and provide a solid technical guarantee for the restoration of the water ecosystem and the healthy growth of submerged plants.

[0084] The sunlight divergence light source is configured to uniformly and precisely diverge the sunlight energy transmitted through the special optical fiber conducting fiber.

[0085] In this embodiment, uniformly and precisely diverging the sunlight energy transmitted through the special optical fiber conducting fiber includes:

[0086] Real-time monitoring and collection of the morphological characteristics, biomass and growth position of underwater submerged plants to obtain submerged plant growth data;

[0087] Dynamically adjusting and controlling the underwater scattering device according to the submerged plant growth data, so that the sunlight divergence light source uniformly and precisely diverges the sunlight energy.

[0088] In this embodiment, dynamically adjusting and controlling the underwater scattering device includes:

[0089] Precisely controlling the lighting conditions of the sunlight divergence light source according to the submerged plant growth data, dynamically adjusting the light intensity, lighting time and light of different wavelengths, so that the sunlight divergence light source adapts to the growth state of submerged plants.

[0090] It should be noted that by precisely controlling the lighting conditions, including parameters such as light intensity, lighting time, light quality (light of different wavelengths), etc., submerged plants can thrive in an artificially created suitable lighting environment, achieving a significant increase in yield and an effective improvement in quality, providing strong support for the development of related industries. By efficiently, uniformly and precisely diverging the sunlight energy, it provides a suitable and sufficient lighting environment for underwater submerged plants to promote their growth and normal photosynthesis, playing a crucial role in the entire underwater sunlight introduction system.

[0091] In summary, by adopting a combination of passive light and active light, precise supplementary lighting for submerged aquatic plants is achieved. Among them, for the passive light network optimization, in the application of passive optical networks, a highly efficient optical system is designed. Considering various factors such as the propagation characteristics of light, the optical properties of water bodies, and the lighting requirements of target plants, through optimizing the design of the light transmission path, adopting advanced optical materials and structures, the loss phenomena such as scattering and absorption of light during transmission are minimized, and the utilization efficiency of natural light is improved. At the same time, fully considering the actual situations such as the clarity, depth of the water body, and the refraction and attenuation characteristics of light in water, using interdisciplinary knowledge such as fluid mechanics and optical engineering, the optical network is customized and adjusted. Through precise calculation and simulation, it is ensured that the layout and parameter settings of the optical network can adapt to different water body environments, enabling as much light as possible to accurately reach the target area, creating a sufficient and uniform natural lighting environment for submerged plants, and meeting their basic lighting requirements for growth and development. Secondly, in terms of the introduction and synergistic effect of the active optical network, the introduction of the active optical network aims to effectively make up for the insufficient lighting of natural light under specific conditions (such as at night, on cloudy days, or in deep water areas). By carefully selecting the wavelength and intensity of artificial light sources suitable for the specific growth requirements of submerged plants, it is ensured that when natural light cannot meet the growth needs of plants, necessary lighting supplements can be provided in a timely manner. In the synergistic matching strategy of the passive optical network and the active optical network, the passive optical network serves as the basic light source, providing a continuous and stable natural lighting background for submerged plants and maintaining the basic physiological activities of plants; the active optical network serves as an important supplementary means, playing a key role during critical periods of insufficient lighting, ensuring that plants can still maintain a normal growth state under various complex environmental conditions. This synergistic mechanism can not only effectively prevent and alleviate problems such as slow growth and disease occurrence of submerged plants caused by insufficient lighting, but also promote the improvement of the photosynthesis efficiency of plants and accelerate the growth rate of plants by precisely regulating lighting parameters, thereby enhancing the biodiversity and overall stability of the water ecosystem and providing strong technical support for the water ecological restoration project.

[0092] In one embodiment, a multi-dimensional supplementary lighting device for submerged aquatic plants is provided, which precisely controls the lighting conditions of the sunlight divergence light source according to the growth data of submerged aquatic plants, and dynamically adjusts the lighting intensity, lighting time, and light of different wavelengths, including:

[0093] Obtain the growth distribution area of submerged aquatic plants. At the same time, obtain the effective irradiation range of the sunlight divergence light source, and determine the sunlight irradiation blind area for submerged aquatic plants based on the range difference between the growth distribution area and the effective irradiation range;

[0094] Determine the deployment position of the bionic light source based on the sunlight irradiation blind area, and give deployment guidance to the bionic light source based on the deployment position;

[0095] Determine the submerged plant species in each growth distribution area based on the deployment guidance results, and crawl the growth stages of the corresponding submerged plants from the Internet, as well as the biological clocks and growth requirements corresponding to each growth stage;

[0096] Determine the supplementary lighting time intervals for different submerged plant species based on the biological clocks, and analyze the growth requirements to determine the supplementary lighting intensities at different supplementary lighting moments within the supplementary lighting time intervals for different submerged plant species at different growth stages;

[0097] Construct a differential supplementary lighting control strategy for the sunlight divergent light source and the bionic light source in different growth distribution areas based on the supplementary lighting time intervals and the supplementary lighting intensities at different supplementary lighting moments, and control the sunlight divergent light source and the bionic light source to coordinately supplement light to the submerged plants in each growth distribution area based on the differential supplementary lighting control strategy;

[0098] Based on the control results, monitor the actual supplementary lighting intensity at each growth stage in real time according to the light sensors pre-deployed in each growth distribution area, and determine the difference comparison between the actual supplementary lighting intensity and the supplementary lighting intensity at the corresponding different supplementary lighting moments;

[0099] If the difference comparison result is greater than the preset threshold, adaptively and dynamically correct the supplementary lighting intensity at the determined different supplementary lighting moments based on the actual supplementary lighting intensity;

[0100] Otherwise, continuously monitor the lighting of the submerged plants in each growth distribution area until the supplementary lighting operation for the entire life cycle is completed.

[0101] In this embodiment, the growth distribution area refers to the distribution of the growth positions of submerged plants underwater.

[0102] In this embodiment, the effective irradiation range refers to the area where the sunlight divergent light source can effectively provide light.

[0103] In this embodiment, the range difference refers to the non-overlapping area between the growth distribution area and the effective irradiation range.

[0104] In this embodiment, the sunlight irradiation blind area refers to the area or position where the sunlight divergent light source fails to effectively provide light.

[0105] In this embodiment, the bionic light source refers to a device that can emit light similar to sunlight.

[0106] In this embodiment, the growth stage refers to the growth interval corresponding to the submerged plants, such as the seedling growth stage and the fruit growth stage, etc.

[0107] In this embodiment, the biological clock refers to the requirements of different submerged plants for the duration of light at different times in different growth stages. For example, from 6:00 to 8:00, the light intensity gradually decreases from 10 to 8. During the night from 18:00 to 6:00, the light is turned on every hour for 15 minutes, etc.

[0108] In this embodiment, the growth requirement refers to the degree of need for light intensity in different growth stages.

[0109] In this embodiment, the light supplement time interval refers to the specific time nodes for compensating different types of submerged plants.

[0110] In this embodiment, the differential light supplement control strategy refers to the strategy for controlling the sunlight divergence light source and the bionic light source in different growth distribution areas. The light supplement control strategies for different growth distribution areas are different.

[0111] In this embodiment, the pre-deployed light sensor refers to the sensor pre-deployed in the growth distribution area, which can monitor the light intensity in different growth distribution areas.

[0112] In this embodiment, the actual light supplement intensity refers to the light intensity provided by the sunlight divergence light source and the bionic light source received in different growth distribution areas.

[0113] In this embodiment, the preset threshold is set in advance and is the minimum standard for measuring whether the difference between the actual light supplement intensity and the light supplement intensity at the corresponding different light supplement times meets the requirements, and it can be adjusted.

[0114] In this embodiment, the adaptive dynamic correction refers to adjusting the light supplement intensity at different light supplement times when the difference comparison result is greater than the preset threshold to meet the light requirements.

[0115] In this embodiment, the full-life-cycle light supplement refers to the light supplement for each growth stage of the submerged plant.

[0116] The working principle and beneficial effects of the above technical solution are as follows: By determining the growth distribution area of submerged plants and the effective irradiation range of the sunlight-diverging light source, when there is a sunlight irradiation blind area in the sunlight-diverging light source, the deployment position of the bionic light source is determined and deployment guidance is provided. Secondly, the types of submerged plants in each growth distribution area are determined, and according to the types of submerged plants, the growth stages of each submerged plant and the corresponding biological clocks and growth requirements at each growth stage are obtained from the network. Furthermore, according to the biological clocks and growth requirements, the supplementary lighting time intervals and supplementary lighting intensities for different types of submerged plants are determined. Finally, a differential supplementary lighting control strategy for the sunlight-diverging light source and the bionic light source in different growth distribution areas is constructed, and the submerged plants in each growth distribution area are supplemented with light in a coordinated manner by the sunlight-diverging light source and the bionic light source according to the differential supplementary lighting control strategy. The supplementary lighting situation is monitored in real time, and when the supplementary lighting requirements are not met, the supplementary lighting intensity is adjusted in a timely manner, ensuring the reliability of the supplementary lighting for submerged plants.

[0117] In one embodiment, a multi-dimensional submerged plant supplementary lighting device is provided. When evenly and precisely diverging the solar energy transmitted through the special optical fiber conduction fiber, it includes:

[0118] Obtain multiple measurement points of submerged plants and collect the light intensity of each measurement point of the submerged plants;

[0119] Calculate the coefficient of variation according to the light intensity of each measurement point of the submerged plants;

[0120] ;

[0121] Among them, represents the coefficient of variation, and the value range is ; n represents the total number of measurement points; i represents the serial number value of the measurement point; represents the light intensity of the i-th measurement point;

[0122] Construct a light intensity uniformity evaluation function according to the coefficient of variation;

[0123] ;

[0124] Among them, U represents the light intensity uniformity evaluation function, and the value range is (0, 1]; e represents the natural constant;

[0125] Evaluate the uniformity of the current solar energy according to the light intensity uniformity evaluation function;

[0126] When the value of the light intensity uniformity evaluation function is equal to or greater than the first preset threshold and less than or equal to 1, it is determined that the uniformity of the current solar energy is qualified;

[0127] When the value of the light uniformity evaluation function is less than or equal to the second preset threshold and greater than or equal to 0, it is determined that the uniformity of the current solar energy is unqualified, and an alarm operation is performed;

[0128] Among them, the first preset threshold is greater than the second preset threshold.

[0129] In this embodiment, the smaller the coefficient of variation, the higher the light uniformity.

[0130] In this embodiment, the first preset threshold is set in advance, for example, the value is 0.8, and the second preset threshold is set in advance, for example, the value is 0.3.

[0131] In this embodiment, the alarm operation is one or more of sound, light and vibration.

[0132] The working principle and beneficial effects of the above technical solution are: by presetting multiple measurement points of submerged plants and extracting the light intensity of each measurement point, the coefficient of variation corresponding to the light intensity can be effectively calculated, so that the light uniformity evaluation function can be effectively constructed according to the coefficient of variation, which is beneficial to effectively realizing the accurate evaluation of the uniformity of the current solar energy, improving the reliability and accuracy of the evaluation. Through the alarm operation, the staff can be effectively ensured to timely master the current state and make real-time adjustments, which is beneficial to ensuring that the submerged plants can better absorb light energy.

Claims

1. A multi-dimensional submerged plant supplementary lighting device, characterized in that, It includes a sunlight introduction and lighting machine, special optical fiber conduction fibers, and a sunlight diffusing light source; The sunlight introduction and lighting machine is configured to collect solar energy on the water surface; The special optical fiber conduction fibers are configured to stably transmit the collected solar energy to the underwater submerged plant growth area; The sunlight diffusing light source is configured to uniformly and precisely diffuse the solar energy transmitted through the special optical fiber conduction fibers; Among them, the lighting conditions of the sunlight diffusing light source are precisely controlled according to the growth data of submerged plants, and the light intensity, lighting time, and light of different wavelengths are dynamically adjusted; When uniformly and precisely diffusing the solar energy transmitted through the special optical fiber conduction fibers, it includes: Obtaining multiple measurement points of submerged plants and collecting the light intensity of each measurement point of the submerged plants; Calculating the coefficient of variation according to the light intensity of each measurement point of the submerged plants; Constructing a lighting uniformity evaluation function according to the coefficient of variation; Evaluating the uniformity of the current solar energy according to the lighting uniformity evaluation function; When the value range of the lighting uniformity evaluation function is equal to or greater than the first preset threshold and less than or equal to 1, it is determined that the uniformity of the current solar energy is qualified; When the value range of the lighting uniformity evaluation function is less than or equal to the second preset threshold and equal to or greater than 0, it is determined that the uniformity of the current solar energy is unqualified and an alarm operation is performed; Among them, the first preset threshold is greater than the second preset threshold.

2. The multi-dimensional submerged plant supplementary lighting device according to claim 1, characterized in that Collecting solar energy on the water surface includes: Using a high-precision optical lens group, effectively focusing sunlight with different incident angles on the water surface through curved surface design and optical materials, so that as much light energy as possible is collected; Real-time monitoring of the change of the sun's position through a high-precision sensor, accurately controlling the orientation of the sunlight introduction and lighting machine according to a preset algorithm, so that the sunlight introduction and lighting machine always maintains the best incident angle with the sun's rays, and efficiently collects sunlight throughout the day without interruption; Using an optical coupling device to preliminarily integrate and optimize the converged light, reducing the energy loss of the light during transmission to subsequent components, and enabling the light energy to be transmitted to the subsequent optical waveguide system in the most efficient way.

3. The multi-dimensional submerged plant supplementary lighting device according to claim 2, characterized in that, Real-time monitoring of the change of the sun's position through a high-precision sensor and accurately controlling the orientation of the sunlight introduction and lighting machine according to a preset algorithm includes: Using a light intensity sensor to real-time monitor and collect the lighting situation of sunlight irradiating the sunlight introduction and lighting machine, and obtaining sunlight intensity data; Using an attitude sensor to real-time monitor and collect the attitude situation of sunlight irradiating the sunlight introduction and lighting machine, obtaining sun position change data, and processing the sun position change data; Constructing a mathematical model based on the sun's trajectory, inputting the sun position change data into the mathematical model based on the sun's trajectory, analyzing the sun position change data according to the mathematical model based on the sun's trajectory, and calculating the real-time position of the sun; The controller generates a control instruction according to the calculated real-time position of the sun, controls the orientation of the sunlight introduction and lighting machine according to the control instruction, adjusts the lighting angle of the sunlight introduction and lighting machine, and performs real-time tracking of sunlight through a tracker to form a closed-loop control, so that the sunlight introduction and lighting machine always maintains the best incident angle with the sun's rays.

4. The multi-dimensional submerged plant supplementary lighting device according to claim 3, characterized in that, Construct a mathematical model based on the sun's trajectory, including: Collect historical data of the sun's trajectory and divide the collected historical data of the sun's trajectory into a training set and a test set; Based on deep learning technology, use the training set to train the deep learning model, enabling the deep learning model to autonomously learn the sun position calculation behavior and predict the sun position, and determine the mathematical model based on the sun's trajectory; Conduct performance testing on the mathematical model based on the sun's trajectory using the test set to determine whether the mathematical model based on the sun's trajectory can achieve the expected effect; According to the test results, adjust and optimize the parameters and structure of the mathematical model based on the sun's trajectory, determine the optimal mathematical model based on the sun's trajectory, and deploy the optimal mathematical model based on the sun's trajectory for predicting the sun position and calculating the real-time sun position.

5. The multi-dimensional submerged plant supplementary lighting device according to claim 1, characterized in that, The special optical fiber conducting fiber is made of special optical glass or polymer material with high light transmittance and low attenuation characteristics, and the special optical fiber conducting fiber includes a core layer and a cladding layer; The core layer is configured to conduct light, enabling the light to be transmitted with low loss inside the core layer through the principle of total internal reflection; The cladding layer is configured to protect the core layer and enhance the mechanical strength of the special optical fiber conducting fiber, and the lower refractive index prevents light from escaping from the core layer.

6. The multi-dimensional submerged plant supplementary lighting device according to claim 5, characterized in that, An external protective coating with high strength, water resistance and good flexibility is provided on the special optical fiber conducting fiber to protect the special optical fiber conducting fiber from external force damage and maintain stable optical transmission performance of the special optical fiber conducting fiber under bending and stretching conditions.

7. The multi-dimensional submerged plant supplementary lighting device according to claim 1, characterized in that Uniformly and precisely diverge the solar energy transmitted through the special optical fiber conducting fiber, including: Real-time monitor and collect the morphological characteristics, biomass and growth position of submerged aquatic plants underwater to obtain the growth data of submerged aquatic plants; Dynamically adjust and control the underwater scattering device according to the growth data of submerged aquatic plants, so that the sunlight divergence light source diverges the solar energy uniformly and precisely.

8. The multi-dimensional submerged plant supplementary lighting device according to claim 7, characterized in that, Dynamically adjust and control the underwater scattering device, including: Precisely control the illumination conditions of the sunlight divergence light source according to the growth data of submerged aquatic plants, dynamically adjust the illumination intensity, illumination time and light of different wavelengths, so that the sunlight divergence light source adapts to the growth state of submerged aquatic plants.

9. The multi-dimensional submerged plant supplementary lighting device according to claim 8, characterized in that, Precisely control the illumination conditions of the sunlight divergence light source according to the growth data of submerged aquatic plants, and dynamically adjust the illumination intensity, illumination time and light of different wavelengths, including: Obtain the growth distribution area of submerged aquatic plants. At the same time, obtain the effective irradiation range of the sunlight divergence light source, and determine the sunlight irradiation blind area for submerged aquatic plants based on the range difference between the growth distribution area and the effective irradiation range; Determine the deployment position of the bionic light source based on the sunlight irradiation blind area, and give deployment guidance to the bionic light source based on the deployment position; Determine the types of submerged aquatic plants in each growth distribution area based on the deployment guidance results, and crawl the growth stages of the corresponding submerged aquatic plants and the biological clocks and growth requirements corresponding to each growth stage from the Internet; Determine the supplementary lighting time intervals for different submerged plant species based on the biological clock, analyze the growth requirements, and determine the supplementary lighting intensities at different supplementary lighting times within the supplementary lighting time intervals for different submerged plant species at different growth stages; Construct a differential supplementary lighting control strategy for the sunlight divergence light source and the bionic light source in different growth distribution areas based on the supplementary lighting time intervals and the supplementary lighting intensities at different supplementary lighting times, and control the sunlight divergence light source and the bionic light source to coordinately supplement light to the submerged plants in each growth distribution area based on the differential supplementary lighting control strategy; Based on the control results, the actual supplementary lighting intensity at each growth stage is monitored in real time according to the pre-deployed light sensors in each growth distribution area, and the difference comparison is made between the actual supplementary lighting intensity and the supplementary lighting intensity at the corresponding different supplementary lighting times; When the difference comparison result is greater than the preset threshold, the supplementary lighting intensity at the determined different supplementary lighting times is adaptively and dynamically corrected based on the actual supplementary lighting intensity; Otherwise, continuous light monitoring is carried out on the submerged plants in each growth distribution area until the supplementary lighting operation for the entire life cycle is completed.

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