4411 results about "Sunlight" patented technology

The invention discloses an optical storage and charging integrated micro-grid energy management system, which relates to the related technical field of micro-grids and comprises an electric energy collection layer, a digital twinborn layer, a collaborative optimization layer, an application execution layer, a photovoltaic power generation unit, an energy storage unit, a charging load unit and a distributed measurement and control terminal. The invention further discloses an energy management method of the photovoltaic, storage and charging integrated micro-grid. The energy management method comprises the steps of data acquisition, digital twin modeling, multi-target strategy generation and optimization, strategy evaluation and screening, strategy issuing and execution and closed-loop feedback and dynamic correction. According to the invention, through short-term prediction of a digital twinborn layer and real-time generation of a charging and discharging strategy by a collaborative optimization layer, fluctuating renewable energy sources are preferentially consumed, the light abandoning rate is reduced, energy storage charging is automatically triggered in an illumination peak period, and power overflow is avoided; based on the simulation result of the digital twinborn model, the power distribution of energy storage and load is dynamically adjusted, so that the photovoltaic utilization rate is improved, and the dependence on a traditional power grid is reduced.

The invention relates to the technical field of satellite orbit prediction, and discloses a satellite orbit prediction method based on a physical information neural network, a terminal and a medium. The method comprises the following steps: constructing a sample set based on satellite position data, sun position data and moon position data in the same time period; constructing a physical information neural network; the network takes satellite historical position data as input to predict a satellite orbit position at a future moment; training a physical information neural network by using the sample set, and executing a satellite orbit prediction task by using the trained physical information neural network; the trained loss function comprises data loss, physical loss and smoothness loss; the data loss is used for measuring the difference between network prediction output and actual observation data; the physical loss is jointly calculated by the earth aspheric perturbation, the three-body gravitational perturbation and the solar light pressure physical perturbation borne by the satellite; the smoothness loss is used for constraining the smoothness of the predicted satellite orbit. According to the invention, the prediction precision and robustness of the satellite orbit are improved.

The invention relates to a method for setting power loss of a mountain photovoltaic array. The method comprises the following steps of: establishing a coupling causal spectrum of multi-source factors including terrain, angle, sunlight, temperature, dust and wiring mode to component output; identifying a dominant loss path based on an identification method of a Bayesian network; outputting a structure weight matrix of the power loss, and identifying an inclination angle gt; a temperature gt; a set of influence factors of the wiring topology pair setting; calculating a power loss response index of each component based on the loss path weight; forming a response index thermodynamic diagram by using a space weight interpolation algorithm, and performing array space sensitive partitioning; the high response area is used as a preferential setting target, and the low response area enters an observation maintenance mechanism; by constructing the response index and the correction response potential function based on multi-factor coupling, the power response potential of the component to the setting operation can be accurately identified, the problems of average adjustment and low-efficiency resource allocation in a traditional setting method are effectively avoided, and it is ensured that setting resources are intensively input into a high-response area.

The invention discloses a photovoltaic auxiliary greenhouse cultivation system which comprises a greenhouse body composed of a framework system and a photovoltaic ceiling, and the photovoltaic ceiling is laid on the top of the framework system, provided with a light splitting type solar thin film cell panel set with adjustable light transmittance and laid in a partitioned mode according to the illumination requirement. The dynamic light compensation system, the temperature balance system and the energy storage system are arranged at the top of the framework system, the energy storage system is used for storing energy and supplying power, the dynamic light compensation system is used for supplementing light for each indoor crop area according to photosynthetically active radiation and sun illumination conditions, and the temperature balance system is used for ventilating and humidifying the greenhouse; and the control machine is arranged on the greenhouse main body and is electrically connected with the dynamic light compensation system, the temperature balance system and the energy storage system so as to receive the monitoring data and control the operation of each electric appliance element. According to the system, lithium battery energy storage and a grid-connected inverter are integrated, the energy self-sufficiency rate is optimized, and the space utilization rate is increased through spectrum customization and three-dimensional planting; the method is suitable for tilled land shortage areas, and gives consideration to clean energy production and agricultural efficient output.

The invention provides an environment-considered photovoltaic panel cleaning scheme determination method, and belongs to the technical field of photovoltaic panel cleaning.The method comprises the steps that firstly, real-time weather data and prediction data are obtained, and an environment stain correlation model is established; a multispectral camera is adopted to identify the types of stains on the surface of the photovoltaic panel and calculate a distribution map; calculating a cleaning index by combining the generating capacity data and the solar irradiation intensity, and determining a cleaning priority; a weather adaptability scoring system is constructed, and a robot operation environment threshold value is set; dividing power generation time periods according to the sunlight intensity and calculating an optimal cleaning time window; cleaning schemes are matched according to different stain types, and parameters are adjusted according to environmental conditions; calling a stain cleaning efficiency optimization function to carry out multi-objective optimization; and finally, generating an optimal cleaning path and parameter configuration by utilizing the photovoltaic cleaning planning network model. The technical problem that a photovoltaic panel cleaning scheme cannot be adaptively optimized according to complex and changeable environmental factors is solved.

The invention discloses a sky-ground integrated sunlight-induced vegetation chlorophyll fluorescence monitoring system, and belongs to the technical field of remote sensing monitoring. The system provides functions, parameter constraints and cooperation relations of space-based, empty-based and foundation chlorophyll fluorescence information acquisition and data analysis processing and application modules. Spatial scale matching, spectral scale matching, observation angle matching and atmospheric element matching are performed on the acquired sky-ground multi-element data with different scales, so that reflection characteristics, heat dissipation, photochemical indexes, fluorescence emission and atmospheric transmission characteristics during vegetation photosynthesis can be completely acquired; the invention provides a parameter relation and a method for extracting a fluorescence full-spectrum radiation information curve based on oxygen absorption and Fraunhofer dark line. On the basis of sky and landmark calibration and model verification, chlorophyll fluorescence detection of different fineness degrees of global large-range, key areas and ground crown planting scales can be carried out, various stress effects of vegetation can be monitored in real time, and the primary total productivity of the vegetation can be accurately estimated.

The technical scheme of the invention discloses a photovoltaic power generation and greenhouse agriculture integrated system. According to the photovoltaic agricultural integrated technology disclosed by the invention, photovoltaic power generation and greenhouse planting are innovatively combined, and a solar panel with adjustable light transmittance of 30%-90% is mounted at the top of an agricultural facility, so that sunlight is utilized for power generation, and illumination required by crop growth is reserved. The system disclosed by the invention is provided with an intelligent sensor and an AI algorithm, environment data is monitored in real time, the angle, light supplementing intensity, temperature and humidity of the photovoltaic panel are dynamically adjusted, and different crop requirements (such as low illumination of leaf vegetables and medium and strong illumination of fruits and vegetables) are accurately matched. Residual electricity is stored or connected to a grid, photovoltaic waste heat is recycled in winter for heat preservation, sun shading and cooling are conducted in summer, and efficient circulation of energy is achieved.

The invention discloses a passive radiation refrigeration coating and a preparation method thereof, and relates to the technical field of industrial coatings. Comprising a fluoroacrylate emulsion, hollow glass beads, nano titanium dioxide, flaky silicon dioxide aerogel powder, polytetrafluoroethylene micro powder, hydroxyl-terminated polydimethylsiloxane, a hydroxyl acrylic acid modified silane coupling agent, a super-hydrophobic modified fluorosilicone surface additive, nano cerium oxide, aluminum fluoride doped zinc oxide infrared enhancement powder and deionized water. The paint is prepared on the basis of the formula. According to the invention, a multi-scale spectrum regulation and control and surface self-cleaning system is constructed cooperatively, so that the synergistic effect of high reflection of a sunlight region and high emission of a middle infrared region is realized. The coating can maintain continuous passive refrigeration in a day and night period, the surface of the coating has self-cleaning capability and excellent ultraviolet aging resistance, and high reflectivity and high radiation emissivity can be maintained for a long time in a complex outdoor environment, so that the thermal management efficiency of buildings and equipment is remarkably improved.

The invention relates to the technical field of refrigeration material preparation, in particular to an efficient passive radiation refrigeration material suitable for a sub-super environment and a preparation method and application of the efficient passive radiation refrigeration material. The method comprises the following steps: uniformly mixing thermoplastic polyurethane, sunlight high-reflection inorganic particles and a phase change material in a solvent; after a chemical foaming agent is added, the obtained suspension liquid is heated and foamed in a confinement mold, and wet gel is formed; and finally, carrying out freeze drying treatment to obtain the composite porous aerogel. The prepared material has a micro-nano porous skeleton formed by TPU, and inorganic particles and PCM are uniformly dispersed in the skeleton wall. Through component cooperation and a special porous structure, the material has extremely high sunlight reflectivity and mid-infrared emissivity, self-adaptive temperature regulation and control are achieved through PCM phase change, the problem that refrigeration of a traditional material fails in the sub-environment such as the vertical surface is effectively solved, and efficient sub-super-environment heat management is achieved.

The invention discloses a novel photocatalyst for producing hydrogen from organic matter wastewater and a preparation method of the novel photocatalyst, and relates to the technical field of photocatalysis. The photocatalyst disclosed by the invention is combined with oxidation-reduction capability, and can effectively degrade and produce hydrogen under the irradiation of sunlight. Through combination of quaternized porous tungsten oxide and vanadate radicals, silver vanadate load growth is promoted, the sunlight utilization rate is increased, and the electron-hole recombination rate is reduced. Reduced graphene oxide is used for pretreatment, active groups are introduced, the reduced graphene oxide is compounded with tungsten oxide / silver vanadate, the binding force is enhanced through heat treatment, photo-induced electron-hole pair compounding is inhibited through the conductivity, and the visible light catalytic performance is improved. The adsorption effect of porous tungsten trioxide and reduced graphene oxide can accelerate the degradation of organic matters. By optimizing the proportion of silver vanadate, tungsten oxide and reduced graphene oxide, the visible light response and charge separation efficiency are enhanced, the degradation and hydrogen production performance is improved, and light corrosion is reduced.

The invention discloses a highway tunnel vehicle-mounted lighting system for intelligently measuring and calculating lamp lightening time based on an interval, and relates to the technical field of highway tunnel lighting energy saving. The invention discloses a highway tunnel vehicle-mounted lighting system for intelligently measuring and calculating lamp lightening time based on an interval. The highway tunnel vehicle-mounted lighting system comprises an interval division module, a lighting analysis module and a lighting control module. According to the method, the highway tunnel is subjected to refined interval division, vehicle shielding features, identification information and timestamps are combined, vehicle passing key features are dynamically obtained, the illumination path of each vehicle can be accurately predicted, and vehicle-mounted response and on-demand illumination are achieved; and front and back external environment illumination change information is fused, sunlight reflection illumination features are extracted, interference of strong sunlight reflection, entrance and exit light difference and the like on illumination control is eliminated from the source, and the environment adaptability and recognition accuracy of an illumination system are remarkably improved.

The invention relates to the technical field of path planning, in particular to an unmanned aerial vehicle intelligent inspection method and system for a non-stop fan. Comprises: obtaining a target static parameter, an environment parameter and a target dynamic parameter; according to the initial position of the unmanned aerial vehicle, the target static parameter and the blade rotating speed, identifying and obtaining an unmanned aerial vehicle inspection path set; wherein the unmanned aerial vehicle inspection path comprises an unmanned aerial vehicle inspection point; predicting angles among a visual equipment camera lens, a blade surface normal and solar rays when the unmanned aerial vehicle shoots at the inspection point, and obtaining an inspection quality coefficient in combination with the three-dimensional contour of the to-be-inspected area of the blade; according to the target static parameter, the target dynamic parameter and the environment parameter identification, obtaining an inspection safety coefficient representing the operation stability degree of the unmanned aerial vehicle; according to the invention, optimization identification is carried out through the inspection quality coefficient, the inspection safety coefficient and the inspection path total duration of the unmanned aerial vehicle inspection point, and the optimal inspection path is obtained.

The present invention relates to an exposed water-based asphalt-based waterproof coating material and a preparation method therefor, and a waterproof laminate. The exposed water-based asphalt-based waterproof coating material comprises anionic emulsified asphalt, a polymer emulsion, a filler, and an auxiliary agent, wherein the anionic emulsified asphalt is prepared by melt-blending matrix asphalt with a composite weather-resistant additive and then emulsifying the resulting blend. The composite weather-resistant additive is a combination of an antioxidant and an ultraviolet absorbent in a mass ratio of 0.5-2:1, and the polymer emulsion is one of or a combination of more than one of a weather-resistant styrene-acrylic emulsion, a weather-resistant pure acrylic emulsion, and a weather-resistant silicone acrylic emulsion. By introducing the antioxidant and the ultraviolet absorbent into the anionic emulsified asphalt, the present invention improves the stability of a waterproof coating material system and avoids a demulsification phenomenon; moreover, by using a weather-resistant polymer emulsion in combination with a filler and an auxiliary agent, the weather resistance of the prepared waterproof coating material is greatly improved; furthermore, by means of the protective effect and the sunlight reflecting effect of white sintered sand adhered to a surface of the coating material, the waterproof system can be used as an exposed product for waterproof construction of buildings that have been in exposed environments for a long time.

An automatic sunshield device is disclosed, which is a unique sunshield that protects the interior upholstery of a vehicle. The automatic sunshield device comprises first and second body components that are configured to slide out on tracks installed on opposite sides of the front and rear windshields to protect the vehicle when in a parked position. The body components would run on a track above and below the vehicle windshield, residing in the front frames of the vehicle, so it would remain invisible when not in use. The two body components of sunshield material would roll out and meet in the middle to interlock like puzzle pieces to create a total shield from sunlight. Movement of the body components is facilitated by the vehicle motor or an independent motor.

The invention discloses a photovoltaic photo-thermal energy storage multi-element coupled all-weather self-adaptive building energy system and method, and belongs to the crossing field of solar comprehensive utilization and building energy saving. The system integrates a Fresnel lens, a frequency division film, a photovoltaic power generation unit, a thermoelectric power generation unit and a multi-temperature-zone phase change energy storage device, and the surface of the photovoltaic and thermoelectric unit is covered with an aerogel heat collection and insulation layer. Sunlight is focused by a Fresnel lens and then is separated into short-wave light and long-wave light by a frequency division film, and power generation waste heat is stored in a cascade mode through a phase change energy storage device; the intelligent control unit switches a heat supply season mode or a cold supply season mode according to seasons and energy consumption requirements. The system improves the solar spectrum utilization rate, achieves all-weather self-adaptive supply of electricity and heat of the building, is compact in structure, low-carbon and efficient, and is suitable for various building energy scenes.

The invention discloses a photovoltaic ecological system based on a holographic frequency division technology. The photovoltaic ecological system comprises a frame body; the frequency-division concentrating photovoltaic unit comprises a substrate layer which is formed by connecting a heat conducting plate and a dodging plate and is connected with the frame body through a reciprocating motion mechanism, a concentrating layer and a holographic grating layer which are sequentially arranged above the heat conducting plate, and a photoelectric conversion battery arranged on the heat conducting plate; the light adjusting unit is arranged between the two adjacent frequency division concentrating photovoltaic units and comprises two frequency division plates connected through a rotating pair, and the ends, away from each other, of the two frequency division plates are connected with the corresponding frequency division concentrating photovoltaic units through rotating pairs; the reflective optical baffles are arranged on the two sides of the substrate layer, and side wall batteries are further arranged on the sides, close to the light adjusting units, of the reflective optical baffles. According to the invention, through a spectrum frequency division and space light energy distribution mechanism, multi-band efficient utilization of sunlight is realized, the light quality and the light quantity required by plant photosynthesis are guaranteed, and the photovoltaic power generation efficiency is improved.

The invention provides a photo-thermal cooperative power generation device and method.The photo-thermal cooperative power generation device comprises a control unit, a temperature detection module, a photovoltaic panel, a phase change heat storage module, a thermoelectric module and a refrigeration module, and the photovoltaic panel, the phase change heat storage module, the thermoelectric module and the refrigeration module are sequentially arranged from top to bottom; the thermoelectric module is heated to generate electricity, the temperature detection module comprises a first temperature detection unit used for detecting the temperature of the photovoltaic panel, and the control unit is electrically connected with the temperature detection module. According to the photo-thermal cooperative power generation device, the heat generated when the photovoltaic panel is irradiated by sunlight can be absorbed through the thermoelectric module, the situation that high temperature influences power generation of the photovoltaic panel is avoided, the thermoelectric module generates power based on the absorbed heat, and therefore the comprehensive power generation efficiency of the photo-thermal cooperative power generation device is improved, and the service life of the photo-thermal cooperative power generation device is prolonged.

The invention relates to the technical field of agricultural intelligent planting, in particular to a crop growth analysis and fertilization optimization method fusing multi-source data, which comprises the following steps: acquiring crop canopy reflectivity data, sunlight perpendicular incidence angle data and a soil fertility index in real time; sunlight perpendicular incidence angle data are analyzed into a daily cumulative effective illumination intensity distribution diagram, a three-dimensional fertility gradient model is constructed in combination with a soil fertility index, canopy reflectivity data are recognized as a growth vigor difference quantization map through a machine learning classifier, the three types of data are fused through a space-time matching algorithm, and the growth vigor difference quantization map is obtained. Generating a correlation mapping matrix which takes a plant individual as a minimum unit and marks an illumination and soil deviation superposition influence coefficient, finally calculating the difference degree of fertilizer requirements of adjacent plants based on the superposition influence coefficient, dividing micro-scale dynamic fertilization partitions, and generating a partition plant variable compensation fertilization prescription map. And the variable fertilizer applicator is driven to execute differentiated fertilization operation, so that the growth analysis accuracy and the fertilizer utilization rate are improved.

The invention provides a photovoltaic panel sun tracking support and a tracking method thereof, a photovoltaic panel elevation angle adjusting device of the tracking support comprises a rotating shaft, and the rotating shaft is driven by a first driving device so as to adjust the elevation angle of a photovoltaic panel; the horizontal rotating device comprises a bidirectional multi-stage hydraulic cylinder, and the second driving device drives the bidirectional multi-stage hydraulic cylinder to rotate in the support sleeve so as to drive the photovoltaic panel bracket and the photovoltaic panel elevation angle adjusting device to horizontally rotate; the vertical lifting device is connected with a hydraulic power system, and the hydraulic power system adjusts the lifting of a piston rod by controlling the inlet and outlet of hydraulic oil in a bidirectional multi-stage hydraulic cylinder so as to drive the photovoltaic panel bracket and the photovoltaic panel elevation angle adjusting device to vertically lift; and the computer control system is connected with the first driving device, the second driving device and the hydraulic power system and is used for controlling the first driving device, the second driving device and the hydraulic power system. According to the invention, the position of the sun is tracked constantly, so that the photovoltaic panel is perpendicular to sunlight, and the photovoltaic generating capacity is improved.

An illumination device, system, and method are provided herein for emulating sunlight along a daytime or nighttime locus. Color temperature is determined using a first color temperature curve that includes data representative of a first color temperature as a function of a time of day. In response to a request to a change in brightness of one or more LED chains, a target color temperature output as a function of the current time of day is determined using a second color temperature curve based on the requested change in brightness. The second color temperature curve includes the target color temperature corresponding to the determined current time of day. The target color temperature output includes a lesser change in color temperature at solar noon than the change in color temperature at sunrise and sunset.

The invention provides a photovoltaic power generation optimization method for a fishing-light complementary site and a related device. The method comprises the following steps: acquiring a photovoltaic panel sunlight angle, a water surface wind speed, a water surface wave height, a water depth, a photovoltaic panel core parameter, a reflector parameter and double-measuring-point actually-measured light intensity data; determining the initial receiving radiation quantity of the photovoltaic panel according to the sunlight angle of the photovoltaic panel, the core parameters of the photovoltaic panel, the parameters of the reflector and the actually measured light intensity data of the double measuring points; according to the water surface wind speed, the water surface wave height, the water depth, the double-measuring-point actually-measured light intensity data and the reflector parameters, the water surface correction reflection coefficient is determined; correcting the initial received radiation quantity of the photovoltaic panel by adopting the water surface correction reflection coefficient to obtain the actual received radiation quantity of the photovoltaic panel; and according to the actually received radiation quantity of the photovoltaic panel, the inclination angle of the photovoltaic panel is adjusted, and then the photovoltaic power generation process of the fishing-light complementary site is optimized. Excessive concentration of local radiation quantity caused by secondary reflection of sunlight through a water surface-reflector can be avoided, and generation of hot spots on the photovoltaic panel is inhibited.

The invention discloses a multi-machine collaborative mobile measurement robot path control method, which belongs to the technical field of path planning, and specifically comprises the following steps: collecting surface height information of a target area, and binding the surface height information with geographic coordinates to generate a simplified three-dimensional model; based on the sun moving trajectory data in the current season, calculating an accumulated time length distribution diagram of receiving direct sunlight by each coordinate point on the ground in the current time period; dividing a high sunlight intensity region and a continuous shadow region according to the cumulative duration distribution diagram, and carrying out topological association on the coordinates of the target point to be measured and the continuous shadow region; establishing a dynamic path distribution protocol in a multi-robot communication network, enabling each robot to select a non-overlapping measurement path in a path network formed by continuous shadow areas according to a real-time position and a task queue, and updating a path occupation state through periodic broadcast; according to the invention, the path planning of the mobile measurement robot in the urban high-temperature environment is optimized.

The invention provides a composite photo-thermal hydrogel for seawater desalination and a preparation method and application thereof, the hydrogel has a structural unit of a structure as shown in a formula I. COF with photo-thermal performance is compounded with the hydrogel, and the hydrogel has a three-dimensional long-range ordered pore structure to promote transmission of water molecules; and the COF dispersed in the material contains porphyrin and a C = N double-bond connection structure, so that the material has excellent photothermal conversion efficiency. Therefore, under the irradiation of sunlight, the composite photo-thermal hydrogel disclosed by the invention can realize photo-thermal conversion to realize seawater evaporation, the seawater evaporation rate reaches 3.6 kgm <-1 > h <-1 >, and the performance is improved by about 3 times compared with that of a traditional carbon-based material. According to the preparation method of the composite photo-thermal hydrogel, large and complex equipment is not involved in the preparation method, the preparation technological process is simple, and industrial large-scale production is facilitated; and the reaction temperature in the preparation process is low, the energy consumption is also reduced, and the cost advantage is remarkable.

The invention provides a water bank slope structural surface rock mass shear creep test system and method under a dry-wet cycle, relates to the technical field of rock mechanical property test, and aims to accurately reproduce a dry-wet cycle-stress coupling working condition of a rock mass structural surface under a complex environment. In the device, the direct shear apparatus comprises a loading frame and a loading and sliding device mounted on the frame, and provides a stable mechanical loading basis for a test; the shear box is used for accommodating a rock sample containing a structural surface, and the lower shear box adopts a lengthened design, so that the shear area in the whole shear process can be ensured to be constant; the dry-wet cycle environment simulation cabin is fixed in the loading frame, hermetically wraps the shear box and is integrated with a water soaking subsystem and a drying subsystem, the water soaking subsystem can adjust the water level height and water pressure in the simulation cabin, and the drying subsystem can dry a rock sample, can reproduce the sun illumination radiation condition and is matched with the water soaking subsystem to realize periodic dry-wet cycle; and the coupling effect of dry-wet cycle and mechanical loading is realized.

The invention discloses a loop heat pipe and water heat storage coupling system and a working method, and belongs to the technical field of heat storage. The system has the modes of light gathering of the light-following trough heat collector, heat conduction of the loop heat pipe, heat storage of the water storage tank and warm water irrigation by using the stored heat water. When sunlight is sufficient in the daytime, the system converts solar energy into sensible heat of water in the heat storage water tank and stores the sensible heat, and the sensible heat is insulated by soil to slow down heat loss; when plants need to be irrigated, warm water in the irrigation water tank is used for irrigation; at night or in the absence of illumination, warm water in the heat storage water tank exchanges heat with air in the greenhouse, so that a lasting and stable heat supply source is provided for the greenhouse. Solar energy collected by the heat collecting groove is efficiently transmitted into the water tank through the loop heat pipe driven by temperature difference to be converted into sensible heat of water to be stored, the sensible heat is used for increasing the greenhouse temperature and irrigating plants when heat is needed at night, and the purposes of efficiently storing heat in the daytime and continuously supplying heat at night are integrally achieved.

The utility model discloses a solar photo-thermal conversion seawater desalination distillation device which comprises an evaporation box, a glass cover plate arranged on the top surface of the evaporation box, and a seawater communication box transversely penetrating through the evaporation box, the seawater communication box divides the interior of the evaporation box into an evaporation cavity and a water storage cavity, and a heat insulation layer covers the inner bottom of the evaporation cavity. The heat insulation layer is covered with a photo-thermal conversion layer, the photo-thermal conversion layer is provided with a plurality of water absorption ropes extending into the seawater communication box, a water absorption block is slidably arranged in the evaporation cavity through a transverse guide rail, the water absorption block makes contact with the lower surface of the glass cover plate, and a water collection piece communicated with the water storage cavity is arranged on the inner side wall of the evaporation cavity. The driving mechanism is used for driving the water absorption block to reciprocate along the lower surface of the glass cover plate and to be in contact extrusion with the inner side wall of the evaporation cavity. According to the distillation device, condensed water drops on the glass cover plate can be cleaned in time, fresh water collection is completed, the sunlight heat dissipation phenomenon caused by the water drops is reduced, the light transmitting effect of the glass cover plate is ensured, and therefore the desalination efficiency is improved.

The invention belongs to the field of composite materials, and particularly relates to a nanofiber radiation refrigeration heat insulation film with a bionic multilayer structure. The device sequentially comprises a bionic anti-reflection layer, a solar spectrum reflection layer, a nanofiber porous heat insulation layer and an atmospheric window radiation layer from outside to inside, the bionic anti-reflection layer is a sub-wavelength nano bulge array simulating a moth eye structure and is formed on the outer surface of the solar spectrum reflecting layer; the solar spectrum reflecting layer is a polymer film doped with high-reflectivity nanoparticles; the nanofiber porous heat insulation layer is a porous membrane formed by interweaving polymer nanofibers prepared by an electrostatic spinning technology; the atmospheric window radiation layer is a functional layer formed by coating or blending high-emissivity inorganic nanoparticles on the inner surface of the nanofiber porous heat insulation layer; the film integrates bionic antireflection, high sunlight reflection, efficient heat radiation and physical heat insulation, and efficient, stable and flexible daytime radiation refrigeration is achieved.

The invention relates to the technical field of photovoltaic power generation, and discloses a photovoltaic power generation panel supporting device convenient for angle adjustment, which comprises a base, the top of the base is fixedly connected with a platform, the top of the base is fixedly connected with a motor, the output end of the motor is fixedly connected with a cross plate, and the top of the cross plate is fixedly connected with a motor. The inner wall of the cross-shaped plate is rotatably connected with a connecting plate, the inner wall of the connecting plate is fixedly connected with a groove plate, and the inner wall of the cross-shaped plate is provided with a supporting mechanism used for supporting the groove plate. According to the invention, the photovoltaic panel rotates, the power generation efficiency can be improved, the position of solar energy can be tracked, the photovoltaic panel can be always kept vertical to solar rays, and the light absorption efficiency is improved; the surface of the photovoltaic panel can receive sunlight more uniformly by rotating the photovoltaic panel, the angle adjusting state of the photovoltaic panel can be further improved, the use efficiency of the device is improved, and the sunlight conversion power generation amount of the photovoltaic panel can be increased.

The invention provides a solar cell, a manufacturing method thereof and a photovoltaic module, and relates to the photovoltaic field. The solar cell comprises a substrate which comprises a first surface and a second surface which are opposite to each other, the first surface is provided with a groove, microstructures are arranged on the first surface of the periphery of the groove, the bottom surface of the groove and the side face of the groove respectively, and the multiple microstructures comprise a first conical structure, a second conical structure and a columnar structure, the height direction of the first conical structure intersects with the height direction of the second conical structure, and the side face of the columnar structure inclines towards the peripheral direction of the groove. The first passivation layer is located on the first surface. The problem that in the prior art, a solar cell is low in sunlight absorption rate is at least solved.