6194 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 discloses a floating type photovoltaic platform device capable of actively adjusting the angle of a photovoltaic module, which comprises floating bodies, a photovoltaic mechanism, a central control system, connecting floating bodies and gravity anchors, and is characterized in that the photovoltaic mechanism is mounted on the floating bodies, the floating bodies are connected with the gravity anchors, the gravity anchors are placed in a water area, the plurality of floating bodies are connected through the connecting floating bodies, and the central control system is connected with the central control system. The central control system is installed on the connecting floating body, the central control system is respectively connected with the floating body and the photovoltaic mechanism, the floating body comprises an adjusting air cushion and a supporting floating body, the adjusting air cushion is arranged on the supporting floating body, the photovoltaic mechanism is arranged on the adjusting air cushion, and the supporting floating body is respectively connected with the connecting floating body and the gravity anchor. The sun position and the illumination intensity are monitored in real time through the central control system, the angle of the photovoltaic mechanism is actively adjusted through the adjusting air cushion, it is ensured that the photovoltaic assembly can receive sunlight at the optimal angle all the time, and therefore the photoelectric conversion efficiency is remarkably improved.

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.

The invention provides a building external sunshade dynamic photo-thermal regulation and control optimization method and system based on joint simulation, and relates to the technical field of building design, and the method comprises the steps: building a building model, and setting building operation parameters; constructing an external shading calculation model of the building; simulating and calculating energy consumption intensity, sunlight utilization indexes and glare probabilities under different external sunshade regulation and control thresholds according to historical meteorological data on the basis of the constructed building model and the external sunshade calculation model; and performing multi-objective optimization on the obtained energy consumption intensity, sunlight utilization index and glare probability under different external sunshade regulation and control thresholds, and determining an optimal external sunshade regulation and control threshold. The optimal external sunshade opening threshold value can be screened, and the user experience is improved.

The invention provides a perovskite laminated photovoltaic cell assembly and a preparation method thereof, the perovskite laminated photovoltaic cell assembly comprises a plurality of first battery packs connected in parallel, each first battery pack comprises a plurality of laminated cells connected in series, and each laminated cell comprises a perovskite cell and a crystalline silicon cell which are stacked; a first light absorption layer and a first hole transport layer of the perovskite cell are etched by P2 laser to form a plurality of perovskite sub-cells which are connected in parallel, and the perovskite cell is used for absorbing short-wavelength light in front sunlight; the second hole transport layer and the intermediate electrode layer of the crystalline silicon cell are etched by P1 laser to form a plurality of crystalline silicon sub-cells which are connected in parallel, the perovskite cell is used for absorbing long-wavelength light in front sunlight, and the absolute value of the difference between the current density of the perovskite cell and the current density of the crystalline silicon cell is smaller than or equal to a first preset value. According to the laminated battery piece, the current density consistency of the perovskite battery and the crystalline silicon battery in the laminated battery piece is high, the electrical loss can be reduced, and the power generation efficiency can be improved.

The embodiment of the invention provides a simulation evaluation method and device for a multi-satellite cooperative task, and the method comprises the steps: building a unified time-space reference based on a standard time signal, and building a complete environment disturbance model comprising sunlight pressure, atmospheric resistance and geomagnetic field interference. A fault injection mechanism of load, attitude and orbit control is innovatively designed, and real simulation of multi-satellite cooperative motion is realized. According to the system, a system-level, subsystem-level and component-level multi-level evaluation index system is established, a dynamic weight calculation method based on a task execution state is adopted, and matching analysis of a three-dimensional error curve and a key event time sequence is combined, so that accurate evaluation of multi-satellite cooperative task performance is realized; and a reliable decision basis is provided for space task planning and system optimization.

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 an old community photovoltaic building integrated reconstruction design method, and particularly relates to the technical field of building reconstruction design, and the method comprises the following steps: firstly, obtaining the three-dimensional structure data of a building through scanning equipment, and determining a suitable photovoltaic installation region based on a preset reconstruction region grade; calculating the bearing capacity of the photovoltaic module according to the transformation area, determining the total weight of the bearable photovoltaic module, and designing the initial distribution of the module; an inclination angle and an azimuth angle of a photovoltaic module are optimized through sunlight analysis, after installation is completed, an inverter is used for converting direct current into alternating current, the alternating current is connected to an intelligent power grid system, finally operation data are collected regularly, and a neural network is used for predicting faults and evaluating a health state. According to the invention, a feasible scheme is provided for large-scale popularization of renewable energy sources, the installation of the photovoltaic system can make full use of the idle space of old buildings, the utilization efficiency of solar energy resources is improved, the dependence on traditional energy sources is reduced, and the energy consumption of old communities is reduced.

The invention discloses a toilet head product defect automatic detection production line, and relates to the technical field of defect optical detection, the toilet head product defect automatic detection production line comprises a production conveying roller, an optical detection chamber is fixedly connected to the upper end face of the production conveying roller, a power switch is fixedly connected to the side wall of the production conveying roller, and a mounting rack is fixedly connected to the upper end face of the optical detection chamber; the two sides of the optical detection chamber can be intermittently and automatically opened in the closestool product conveying process, the two sides are closed after the closestool product is moved into the optical detection chamber, an external light source is prevented from entering the optical detection chamber, interference of external light rays (such as sunlight and workshop lighting light) can be effectively isolated, and the detection efficiency is improved. The light received by the detection equipment only comes from the detection light source, so that the problem of unstable light intensity is avoided, the accuracy and the reliability of a detection result are improved, the condition of light pollution caused by superposition of an external light source and the detection light source is avoided, and the precision of detecting surface flaws of a closestool product by an optical detection room is improved.

The invention discloses a preparation method of an ultrahigh-reflectivity radiation refrigeration fiber membrane, which comprises the following steps: dissolving a polymer in an organic solvent to prepare an electrostatic spinning precursor solution, and adjusting parameters such as the concentration of the electrostatic spinning precursor solution, spinning voltage, spinning distance, roller rotating speed, liquid supply rate, slide rail reciprocating rate and the like to prepare the ultrahigh-reflectivity radiation refrigeration fiber membrane. And preparing the ultrahigh-reflectivity radiation refrigeration fiber membrane with a porous structure, wherein the reflectivity of the ultrahigh-reflectivity radiation refrigeration fiber membrane is greater than 95% at the sunlight wave band of 0.3-2.5 microns. In the dissolving process of the polymer in the organic solvent, the water bath stirring temperature is 20-60 DEG C, the stirring time is 3-6 hours, a bilateral multi-nozzle opposite layout is adopted in electrostatic spinning, the spinning distance is 15-30 cm, the electrostatic spinning voltage is 20-50 kV, the rotating speed of a roller is 400-1000 r / min, the spinning liquid supply rate is 8-30 ml / h, the reciprocating rate of a sliding rail is 3-10 mm / s, and the thickness of the ultrahigh-reflectivity radiation refrigeration fiber membrane is 300-500 microns. The radiation refrigeration film prepared through the method can be prepared in batches, has good flexibility and can be widely applied to the fields of clothes, buildings, equipment and the like.

The invention belongs to the technical field of seawater desalination, and particularly relates to a solar efficient photo-thermal conversion type floating ball and seawater evaporation application thereof. Specifically, the solar efficient photo-thermal conversion type floating ball comprises a spherical inner core and a photo-thermal conversion material wrapping the spherical inner core, and the density of the spherical inner core is 25-500 kg / m < 3 >; wherein the photo-thermal conversion material is coated at least twice. According to the solar efficient photo-thermal conversion type floating ball, the photo-thermal conversion material is coated at least twice, the loading capacity is improved, meanwhile, a porous network structure is formed, and the seawater evaporation rate can be increased; sunlight irradiates on the floating ball, light energy is converted into heat energy under the action of the surface photo-thermal conversion material, salt is deposited on the floating ball along with water evaporation, and surface salt deposition is automatically and dynamically removed through the free rotating motion of the floating ball on the water surface under the action of centrifugal force and water flow scouring. And self-recovery of the evaporation process and continuous seawater evaporation are realized.

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 utility model discloses a photovoltaic energy storage fishing boat which comprises a fishing boat body, a storage battery box body is installed inside the fishing boat body, and a rotating disc is installed at the top end of the storage battery box body in a rotating mode. A solar photovoltaic panel is arranged at the top of the rotating disc, hydraulic cylinders are fixedly mounted on the two sides of the top end of the rotating disc, first auxiliary shafts are fixedly mounted on the top ends of the two hydraulic cylinders and the two sides of the middle of the bottom end of the solar photovoltaic panel, and a light sensor senses the illumination angle and transmits a signal to a controller; and then the solar energy is transmitted to the corresponding hydraulic cylinder and the motor through the controller, the motor and the hydraulic cylinder can be driven to operate, so that the effect of changing the deviation angle and the rotation angle of the solar photovoltaic panel is achieved, the solar photovoltaic panel can always face a solar light source by adjusting the angle of the solar photovoltaic panel, and the energy of sunlight is absorbed to the maximum extent. The photovoltaic power generation efficiency can be improved, and a photovoltaic system can generate more electric energy under different weather conditions.

The invention relates to a preparation method of a coaxial cellulose-based aerogel fiber fabric for daytime radiation refrigeration, which is characterized in that coaxial fibers take pure cellulose as a core, a skin layer comprises hollow silicon dioxide and low-concentration cellulose, and the hollow silicon dioxide is uniformly dispersed in the cellulose; the preparation method comprises the following specific steps: S1, preparing hollow silicon dioxide with an adjustable particle size; s2, preparing a hollow silicon dioxide / cellulose mixed spinning solution; s3, dissolving cellulose; s4, carrying out coaxial wet spinning; s5, carrying out multi-step solvent replacement; s6, performing continuous normal-pressure drying; s7, weaving fibers; the woven aerogel fiber fabric can effectively scatter sunlight, and the solar reflectivity (gt; 92%), and the emissivity (gt; 96%); the preparation method is green and environment-friendly, the operation is simple, the continuous and large-scale production of the cellulose-based aerogel fiber can be realized, and the prepared coaxial aerogel fiber fabric can show excellent radiation refrigeration performance in the daytime.

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 invention provides a temperature monitoring method based on a dual-light fusion image. The method comprises the following steps: S11, synchronously acquiring a visible light image and an infrared thermal image inside and outside a switch cabinet in an intelligent station building; s12, performing local adaptive convolution on the visible light image and the infrared thermal image, extracting local shallow layer features, and performing heterogeneous association to obtain heterogeneous association degree; s13, based on an anisotropic diffusion mechanism, decomposing the infrared thermal image interfered by sunlight in the switch cabinet to obtain a detail layer image and a base layer image, and performing enhanced fusion on texture features of the detail layer image and the base layer image through the distribution gradient and heterogeneous association degree of textures in the visible light image to obtain an enhanced infrared thermal image; and S14, inputting the enhanced infrared thermal image into a pre-trained temperature detection model for identification, obtaining a temperature abnormal region, and carrying out early warning on a temperature characteristic value. According to the invention, the heterogeneous correlation enhancement of the dual-light fusion image is realized, so that the reliability of temperature monitoring is improved.

The invention belongs to the technical field of water desalination, and particularly relates to a bionic aloe evaporation and capture integrated all-weather water collecting device and a manufacturing method. The water collecting device comprises a base and a plurality of bionic units arranged on the base, and the bionic units are bionic aloe trees; the base is circular, the bionic units are circumferentially distributed around the circle center of the base, and at least two layers of bionic units are arranged; and the water collecting device is prepared from a hydrogel material. The base part of the device can utilize the photo-thermal characteristic of hydrogel in the daytime, and seawater evaporation can be carried out through sunlight; at night, mist catching can be carried out through the tip effect of the aloe form of the bionic unit, and water vapor in the air is collected. The whole device can play a role in the whole day and is not limited by the difference between the day and the night, and the fresh water collection efficiency is greatly improved.

A solar charging system for electric vehicles that includes high-efficiency solar panels mounted on the outer surface of an electric vehicle is disclosed. The system comprises photovoltaic cells for converting a broad spectrum of sunlight into electrical energy, even in low-light conditions with up to 25% efficiency. The solar panels are linked to the vehicle's charging port via an electrical conduit, and a charging module regulates the energy for charging both the main traction and auxiliary batteries. The system can be designed for easy retrofitting, utilizing an adhesive rear surface for secure attachment. In some embodiments, the solar panels include a hydrophobic coating for water repellence and debris removal, and heating elements that actuate automatically under a temperature of zero degrees centigrade to melt ice and snow.

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 relates to the technical field of ecological product accounting, in particular to an intelligent operation and maintenance system of a solar photovoltaic energy storage system, which comprises a state judgment module used for judging the operation state of the solar photovoltaic energy storage system, and specifically comprises the following steps of: aiming at collected real-time operation data, comparing the operation data with a safe operation data threshold value, and judging the operation state of the solar photovoltaic energy storage system; and determining the operation state of the solar photovoltaic energy storage system according to a comparison result, and determining the operation state of the solar photovoltaic energy storage system according to a function scoring result by constructing a stability scoring function of the solar photovoltaic energy storage system and taking the collected real-time operation data as a variable of the function. And the intelligent operation and maintenance module is used for carrying out intelligent operation and maintenance on the solar photovoltaic energy storage system, specifically, the intelligent operation and maintenance module adaptively selects a corresponding operation and maintenance level based on the system operation state result output by the state judgment module, and executes a corresponding operation and maintenance decision according to the operation and maintenance level.

The invention discloses a closed mixotrophic microalgae culture method and a culture system thereof, and relates to the field of microalgae culture, comprising the following steps: step one, microalgae culture, pouring culture solution into a culture tank, adding microalgae to be cultured into the culture solution, and then fixing a sealing plate to the tank mouth of the culture tank by bolts to carry out closed culture; step two, gas supply and nutrient solution addition, sending carbon dioxide from a pipeline into an air distribution pipe through an air pump in an air supply component, forming bubbles from a nozzle and transporting them into the culture solution, and part of the bubbles that rise are gathered by a baffle to extend their residence time in a water body; step three, illumination, during the day, a first electric telescopic rod drives an arc-shaped telescopic plate to move downward to expose the internal transparent culture tank, and sunlight provides a light source to propagate the microalgae. The application can extend the residence time of carbon dioxide in the water body, improve the utilization rate of carbon dioxide, and increase the yield of microalgae.

A solar mosquito killer lamp includes a light emitted by the LED tube in the first light-emitting unit lures mosquitoes. The lured mosquitoes are killed through a high-voltage power grid. A battery and a circuit board arranged in a mounting shell supply power to the LED tube and the high-voltage power grid. Furthermore, a solar panel module electrically connected to the battery and the circuit board is provided, and can convert sunlight into electric energy and store the electric energy into the battery. Due to the solar panel module, compared with a mosquito killer lamp that only includes a single-layer solar panel, the mosquito killer lamp with the solar panel module enlarges an area of the solar panel, thereby improving the solar energy conversion efficiency. Therefore, the mosquito killer lamp can fully use the sunlight to achieve charging during outdoor use and is conductive to reducing the energy consumption.

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 side light-emitting device comprises a frame extending in the vertical direction and a light source module arranged on the inner side of the frame, the light source module emits light in the direction parallel to the extending direction of the frame, a light distribution piece is arranged in a light emitting path of the light source module, and the side light-emitting device is arranged on the side light-emitting device. The light rays are refracted by the light distribution piece and then are emitted in the direction away from the frame. The side light-emitting device can simulate the effect of illuminating the frame on one side of the window when sunlight enters from one side of the window, and can form a virtual image and simulate the window shadow effect in cooperation with the light-emitting surface of the lamp, so that the display effect of the lamp is more vivid, and the visual experience of a user is improved.

The invention discloses a water-cooling refrigeration station system optimization control method for a public building, and relates to the technical field of exhibition hall refrigeration control, and the method comprises the steps: carrying out the three-dimensional dynamic grid modeling of the whole exhibition hall space, monitoring the basic sensible heat and solar radiation conditions in the exhibition hall in real time, obtaining the heat load weight, and dividing the exhibition hall into different regions; according to the heat source distribution value of each exhibition hall partition, a physical field coupling thermal load prediction model is set, and thermal load prediction values of the exhibition hall partitions are predicted in combination with airflow, heat conduction and solar radiation heat absorption of the glass curtain walls; according to the thermal load threshold value, whether the next step is carried out or not is judged; and a rotational flow air port with an angle adjusting mechanism is installed beside the main machine room, and the air supply angle and the air speed are adjusted according to the thermal load predicted value of the exhibition hall partition. The problems that when a large-area French window or a glass curtain wall is directly irradiated by sunlight in summer, instantaneous large load increase is caused, and air supply dead corners and uneven layering are caused by a high-density showcase and a temporary partition are solved.

The invention discloses a sun tracking method based on light spot contour detection, and relates to the technical field of light spot contour detection and tracking. According to the solar tracking method based on light spot contour detection, image data of a solar spot contour area are obtained and analyzed in real time, and a light spot position deviation index, a light spot shape distortion index, a light spot brightness uniformity index and a light spot contrast uniformity index of the solar spot contour area are obtained and comprehensively analyzed; the method comprises the steps of obtaining a light spot comprehensive deviation index of a solar light spot contour area, judging and analyzing the comprehensive deviation index of the solar light spot contour area and a preset deviation threshold range, and adjusting and analyzing sunlight receiving equipment when the comprehensive deviation index of the solar light spot contour area is out of the preset deviation threshold range. Through multi-dimensional comprehensive analysis on the solar facula, the deviation condition of the facula can be accurately evaluated, so that a tracking system can capture fine deviation in real time, and the tracking direction and amplitude are adjusted in time.