175 results about "Artificial light" patented technology

The invention relates to the field of heliostat calibration, and discloses a scheduling method for calibrating heliostats through cooperation of artificial light sources and cameras in a large-scale heliostat field, and the method comprises the following steps: determining the heliostat range covered by each camera, determining the heliostat range covered by each artificial light source, and determining the heliostat range covered by each camera; the method comprises the following steps: determining the center and size of a light spot in an image shot by a camera when the heliostats are calibrated, determining the heliostats which can be calibrated in the coverage range of each artificial light source-camera combination, regarding each effective calibration combination as a node to construct an undirected graph, dividing the nodes into a plurality of groups through a graph grouping algorithm, and ensuring that the nodes in the same group are not connected with each other, therefore, all combinations in the same group can execute calibration in parallel. According to the method disclosed by the invention, the problem of affiliation misjudgment caused by light spot interference between heliostats is solved, possible shadow and shielding problems are avoided, dynamic scheduling of the artificial light source and the camera is realized, and invalid operation time is shortened.

The invention discloses a compressor rotor assembly defect detection method and system based on machine vision, and relates to the technical field of defect detection.During operation of the system, sensors are arranged on the periphery of a detection station, the real-time brightness of natural light and an artificial light source in a workshop is collected, a programmable LED lamp array is arranged above a rotor detection area, and the real-time brightness of the rotor detection area is detected; the method comprises the following steps: dynamically adjusting the brightness and color temperature of an LED, forming a controllable optical domain, shooting two paths of images, synchronously obtaining a visible light HDR image and a near-infrared image, outputting preliminary fusion data, caching a synchronous frame to an annular buffer area, and if the ambient light fluctuation is still severe, fusing, balancing and enhancing the multi-exposure visible light and near-infrared image through a rapid HDR fusion algorithm to obtain a high-definition image. The method comprises the steps that firstly, a high-robustness preprocessing graph is obtained, concentricity CEM, gap unevenness AGF and texture deviation TDM are extracted from the preprocessing graph, feature fusion output is carried out, according to an environment self-adaption threshold fusion index, a defect level is output, and correction or alarm is triggered.

Implementations of the disclosed subject matter provides a system having an artificial light source disposed at a distance from earth or other celestial body, where the artificial light source is configured to project one or more beams of light onto the earth or other celestial body. The system may include a photovoltaic array disposed in an area on the earth or other celestial body that is 200 m-20 km or more in any one dimension that is configured to receive the projected one or more beams of light and is configured to convert the received one or more beams of light into electricity.

The invention relates to a controlled environment agriculture for plant cultivation using artificial lights. The artificial lights comprise an array of light emitting diodes fabricated using gallium nitride, each gallium nitride operable over a wavelength of 380 nm to 900 nm. The array of light emitting diodes include at least one integrated drive controller and at least sensor. The controlled environment agriculture includes at least an imaging device and a control module. The control module comprises a machine learning module and an aggregator module configured connected to at least one sensor and at least one imaging device to aggregate various parameters including environmental data, and plant phenotyping data associated with the plants. Based on the aggregated The control module determines the spectral requirements of the plants for optimal growth based on at least one parameter aggregated from at least one sensor, at least one imaging device and a database to adjust the spectral light in the array of light emitting diodes in real time. The control module is associated with a power module for regulating the electrical power required by the array of light emitting diodes to optimize power consumption. In at least one implementation, the control module and the power module are dynamically controlled in real time by implementing machine learning algorithms to automate the controlled environment for agriculture to optimize and control the spectral and power requirements of the array of light emitting diodes.

The invention discloses a flagpole illumination control method and a flagpole lamp, and the method comprises the steps: carrying out the time alignment collection of electric signals of all photovoltaic panels under a unified time step, and generating front and back array signals and corresponding intensity sequences; calculating spatial distribution characteristics in the arrangement direction according to the intensity sequence to form a front gradient quantity and a back gradient quantity; comparing the relations between the gradient quantities on the two sides and a first threshold value and a second threshold value within a preset duration, and judging the day and night state; therefore, the light-emitting units of the lighting pieces on the two sides are synchronously turned on or turned off. According to the technical scheme, day and night states can be accurately distinguished under the conditions of artificial light interference and environment shielding, misjudgment and flickering are avoided, and stable visibility of a flag in night illumination is guaranteed.

The invention provides a self-adaptive adjustment method and system for light sensation illumination of a hotel environment, and is applied to the field of data processing. According to the method, multiple illumination collection points are arranged in the hotel room, multi-dimensional optical information such as illumination, color temperature and spectral deviation is collected in real time, and the regional synchronism judgment of the illumination change trend is combined, so that misjudgment caused by single-point abnormity, local shielding or reflective interference can be effectively checked, and when the trend is judged not to be synchronized, the judgment result is more accurate. And further introducing a calculation mechanism of an illumination weight, a user-defined illumination state and a natural light contribution value, dynamically identifying an actual influence range of the natural light in a space, and accurately distinguishing action areas of the natural light and the artificial light, so that an illumination suppression strategy is dynamically adjusted, and excessive or insufficient light supplementation is avoided.

The application provides an outdoor tracking-based photobiomodulation method and device. The method comprises: determining effective outdoor time of a user according to collected light exposure data of the user; determining a light compensation level of the user according to the effective outdoor time and a target effective outdoor time; determining photobiomodulation parameters and simulated light compensation parameters according to the light compensation level; when the user is in a specified light compensation scene, outputting artificial light simulating outdoor natural light characteristics according to the simulated light compensation parameters; and performing photobiomodulation on the user according to the photobiomodulation parameters, preset wavelength red light and near-infrared light. The application can achieve the purpose of a comprehensive system that comprehensively simulates outdoor light environment characteristics and integrates photobiomodulation, and provides a more complete solution for myopia prevention and control.

The present invention provides topical and internal skin preparations containing an extract of soapwort cultivated under artificial light with a specific wavelength range. [Solution] The soapwort of the present invention is cultivated by irradiating it with artificial light having a specific wavelength range, and the extract exhibits excellent collagen production promoting effect, MMP inhibitory effect, hyaluronic acid production promoting effect, cell proliferation promoting effect, and antioxidant effect. Furthermore, topical or internal skin preparations containing these effects are particularly effective and also exhibit excellent safety and stability. The soapwort extract of the present invention can be used not only in the field of beauty, such as preventing skin aging, but also in the field of medicine, such as suppressing functional decline due to aging, and is expected to be applied to cosmetics, foods, quasi-drugs, and pharmaceuticals.

The invention discloses a manufacturing method of an artificial light-transmitting stone embossment, which is realized by the following steps of: mixing bio-based polyurethane resin with aliphatic isocyanate, adding fillers such as polyacrylate, organic silicon, nano silicon dioxide, glass beads and the like, then dispersing, carrying out vacuum defoaming to obtain slurry, and drying to obtain the artificial light-transmitting stone embossment. A layered pouring process is combined with an air pressure impressing technology for forming, the period is shortened through UV-thermal dual curing, and the embossment is manufactured. The bottleneck of a traditional process is broken through, epoxy resin is replaced with bio-based resin, the environment-friendly requirement is met, a diffuse reflection system is formed by nano-silica and glass beads, the light transmittance is larger than or equal to 70%, the surface is glossy, soft and free of glare, the aliphatic isocyanate endows the anti-yellowing characteristic, and compared with a traditional unsaturated polyester and epoxy resin method, the anti-yellowing performance is good. The light transmittance, the weather resistance, the mechanical property and the environmental protection property are remarkably improved, and the light-transmitting and weather-resistant composite material is suitable for high-end building decoration, art relief and other scenes and has the industrial mass production and personalized customization capacity.

Miniature lighting device characterized in that it consists of one or more elements made entirely or partially of phosphorescent material, wherein these elements absorb energy during exposure to natural or artificial light and release it again in the dark in the form of visible afterglow.

The invention discloses a non-uniform illumination underwater image reply method based on discrete entropy gain, which is applied to the technical field of computer vision and image processing, and aims to solve the problem that an existing method based on image enhancement or a physical model is difficult to give consideration to global brightness balance and local detail reservation. Particularly, the problems of light spot overexposure and gradual change shadow caused by an artificial light source cannot be effectively inhibited are solved; according to the method, an underwater image under non-uniform illumination is modeled by using a vignetting component, a central overexposure region in the modeled vignetting component is constructed by using an exponential term, and an edge shadow region in the modeled vignetting component is constructed by using a polynomial term. Dynamic modeling of exponential term construction is realized through brightness distribution characteristics in the centroid region; optimal modeling of polynomial construction is achieved through discrete entropy minimization, and image attenuation caused by the influence of an extra light source of an underwater medium is effectively recovered through a gain function.

The light energy charging lamp comprises a shell, a circuit board and a rechargeable battery are arranged in the shell, a light source is arranged on the circuit board, the battery is electrically connected with the circuit board and the light source, and a light transmitting area is arranged on the shell corresponding to the light emitting position of the light source. A perovskite photovoltaic panel used for converting light energy into direct current is further arranged in the shell, a solar controller is further arranged on the circuit board, and the solar controller is used for adjusting the voltage and current of the direct current generated by the perovskite photovoltaic panel and storing the voltage and current in the battery so as to achieve automatic charging of the battery. When people use the lamp indoors, the lamp can be charged through weak natural light or an artificial light source, when people use the lamp outdoors, the lamp can be charged through sunlight, and long-time convenient illumination is guaranteed for people. Moreover, due to automatic charging, manual charging operation is omitted, light energy is effectively utilized, and resource waste is reduced. And on the other hand, no charging wire or mains supply is needed for charging, so that carrying and using outside are facilitated.

This invention discloses a method for enhancing the aroma of C6 aldehydes in cucumber fruits through artificial lighting, belonging to the field of plant cultivation technology. The method includes: when the intensity of natural light outside the facility reaches 60 μmol·m⁻¹… 2 ·s ‑1 Subsequently, cucumber seedlings in the facility were treated with red and blue light supplementation, with a red-to-blue light quality ratio of 3:1. The average photosynthetically active radiation after the LED artificial lighting tubes were accumulated was 424 μmol·m⁻¹. 2 ·s ‑1 The highest photosynthetically active radiation is 502 μmol·m⁻¹. 2 ·s ‑1 This invention discloses a method for enhancing the aroma of C6 aldehydes in cucumber fruits through artificial lighting, thereby increasing the net photosynthetic rate of cucumbers by 39.59% to 47.29% and the content of C6 aldehyde aromas by 31.1% to 37.52%, with the characteristic effect compound hexanal increasing by 38.14% to 46.17% and (E)-2-hexenal increasing by 26.76% to 41.06%.

The invention discloses a plant factory full-band artificial light source system and a light environment self-adaptive intelligent dynamic adjustment method, and the system comprises a multi-band light source array which is composed of a visible light LED module, an ultraviolet light source module and a near-infrared heat source module which are independently divided according to spectral bands, and each module is provided with an independent constant-current drive circuit and a millisecond switching control unit, the controllable spectrum covering 400 nm to 1000 nm and partial ultraviolet and far infrared ranges can be output, and rapid switching and light mixing between wave bands can be achieved in the same plane. Through a modularized multi-band light source and independent driving, on-demand spectrum matching within the range of 400 nm to 1200 nm is achieved, ineffective radiation caused by traditional full-spectrum continuous irradiation is avoided, the actually-measured photosynthetically active radiation utilization rate is increased by about 32%, the overall energy consumption is reduced by 25% to 30% compared with a conventional system, and embedded spectrum monitoring and a TCN-RL mixed model are combined, so that the system has the characteristics of environmental abrupt change, high sensitivity and the like. Or conversion of different growth stages of crops can be realized, spectrum ratio adjustment can be completed within less than or equal to 20ms, and plant population light environment optimization is realized.

The invention provides a planting method of hydroponic lettuce, and relates to the technical field of vegetable cultivation. According to the planting method for hydroponic lettuce, after field planting and hydroponic culture are conducted on lettuce seedlings, a combined artificial light source with the red-blue light ratio being (3-7): 1 is adopted for irradiation; the EC value of the nutrient solution after field planting and before harvesting is 0.8-1.5 mS / cm. According to the planting method of the hydroponic lettuce, after the lettuce seedlings are subjected to field planting and hydroponic culture, red and blue light quality regulation and nutrient solution concentration adjustment are added, a hydroponic lettuce growth synergistic system is constructed through the red and blue light quality regulation and nutrient solution concentration adjustment, the growth system is optimized, high-quality growth of the hydroponic lettuce is achieved, synthesis of secondary metabolites is stimulated, and the yield of the hydroponic lettuce is increased. Flavor substances are accumulated, the vitamin content is increased, and the nitrate content is reduced, so that the lettuce quality is improved, the calcium content is increased, the transpiration is enhanced, and the problem of edge burning is effectively solved.

This invention discloses a method and system for quantifying the color discrimination ability of both natural and artificial light sources. The method first measures the spectral power distribution of the light source to be evaluated. S ( l The illuminance E was then calculated; subsequently, the neutrality index of the light source was calculated in a uniform color space. S neutral The continuous color difference index (SCD) is calculated based on the chromaticity values ​​of a set of continuous color samples in a uniform color space; a segmented illuminance correction function is output according to the illuminance range; finally, the neutrality index is... S neutral The continuous color difference index (SCD) and illuminance correction function are uniformly input into a preset light source color discrimination capability quantification model G to calculate a comprehensive evaluation value. This invention comprehensively quantifies color discrimination capability from three dimensions: spectral characteristics of the light source, neutrality, and illuminance level. It effectively solves the technical problems of existing models failing to represent the spectrum under natural light and being unable to accurately quantify the nonlinear visual response of the human eye under extremely large illuminance spans.

The utility model discloses a ventilation mechanism for an artificial light seedling raising room, which is applied to the field of seedling raising rooms and comprises a shell, a fixing frame is bolted on the inner wall of the shell, a first motor is bolted on the surface of the fixing frame, and the output end of the first motor is connected with a rotating shaft through a coupler; the rotating block is rotated to enable the rotating rod to drive the connecting rod to move, the connecting rod moves to drive the clamping head to move and be disengaged from the clamping hole, and the fixing block and the fan blades are taken down for maintenance, so that the purpose of conveniently assembling and disassembling the fan blades can be achieved, the workload is reduced, and the working efficiency is improved; the second motor rotates to enable the worm to drive the worm gear to rotate, the worm gear rotates to drive the rotating shaft to rotate, the rotating shaft rotates to drive the baffle to rotate, so that the baffle is changed from a horizontal state to a vertical state, the blocking function can be achieved, heat loss is avoided, the heat preservation efficiency is improved, and use is convenient.

A device for conditioned cultivation of a crop (5) comprises a conditioned, at least substantially daylight-free cultivation space (10) with a cultivation section (15) for receiving the crop. Artificial lighting means (30) for creating and emitting to the cultivation section photosynthetically active artificial light are present therein. The cultivation space (10) comprises in a higher zone (ZH) above a leaf system of the crop an air inlet (21) and an air outlet (22). Air treatment means are provided for creating and maintaining a primary airflow between the air inlet (21) and the air outlet (22) in the higher zone (ZH). A distributed conduit system (55) is arranged under the leaf system of the crop in a lower zone (ZL) of the cultivation space. The conduit system (55) is distributed over the cultivation section and provides between the crop plants a number of inlet openings which are coupled to the air treatment means for the purpose of introducing in the cultivation space part-flows of a secondary airflow (Ls) into the lower zone (ZL) of the cultivation space.

Provided herein is the identification of markers and genes associated with flower initiation in Cannabis. The markers are useful for breeding Cannabis plants that initiate flowering at longer daylengths, which allow for earlier maturation and harvesting and ability to grow outdoors at different latitudes or in greenhouses without artificial light deprivation. Also provided are methods for selecting plants by obtaining nucleic acids and detecting one or more markers that indicate flower initiation at increased daylight hours in order to establish plant lines having shorter harvest period as a result of flowering at increased daylight hours.

This invention provides a visibility monitoring method and apparatus suitable for automated deformation monitoring. A CNC pan-tilt unit, a high-resolution camera, a monocular telescope, and a control terminal are set up at the observation and shooting point. At each monitoring target point, a prism, an artificial light source, and a light sensor are set up. The visibility monitoring process includes placing the CNC pan-tilt unit and high-resolution camera next to the measuring robot station; acquiring daytime and nighttime images; statistically analyzing the grayscale histograms of the daytime images at each monitoring target point; calculating the center coordinates and radius of the circle formed by the artificial light source as a circular spot in the nighttime images at each monitoring target point; setting thresholds for the daytime grayscale histogram, and for the center coordinates and radius of the nighttime artificial light source based on the statistical information; acquiring daytime or nighttime images of the monitoring target points during actual deformation monitoring; determining whether the visibility meets the requirements; and verifying the results using other monitoring target points.

Provided are a cultivation device for a fruit vegetable plant and applications thereof, the cultivation device being designed to cultivate fruit vegetable plants of the Solanaceae family or Cucurbitaceae family, the device comprising: a light source that emits artificial light; hydroponic shelves; and a light reflection member. The hydroponic shelves are provided in two or more tiers in a vertical direction in a space in which temperature and humidity are controlled. The light source is disposed on a side of the fruit vegetable plant. The light reflection member is positioned so as to oppose the light source across the fruit vegetable plant.

The invention relates to a plant factory lettuce whole-growth-period dynamic light environment regulation and control method. The method comprises the steps that whole-growth-period staged light environment parameters are designed; building plant growth parameters in different development stages; a matched intelligent regulation and control system is built by using the whole growth period staged light environment parameters, the plant growth parameters in different development stages, the GA-BP neural network and the dynamic fine adjustment rule, the dynamic fine adjustment rule is set, the current light environment is finely adjusted, and a more balanced regulation and control scheme is obtained. Compared with traditional constant red and blue light, four-stage dynamic regulation and control has the advantages that the light energy utilization rate is increased by 27.3%, the energy consumption of artificial light is reduced by 20.1%, and the problem of high energy consumption in the background technology is solved; according to the same test data, the fresh weight of a single plant of the Italian lettuce treated by the method is 45.2 g, and is improved by 17.4% compared with 38.5 g regulated by single-stage far-red light; the content of soluble sugar is 3.2%, the content of VC is 26.5 mg / 100g and is respectively increased by 14.3% and 12.3%, and the yield and the quality are both excellent.

This invention belongs to the field of image generation technology and discloses a method and system for modeling the distribution of artificial light at night at an urban scale. The invention acquires nighttime light remote sensing image data, land use type vector data, ground elevation data, and building morphology vector data of the study area; it uses the land use type vector data to perform super-resolution enhancement processing on the nighttime light remote sensing image data; based on the building morphology vector data and ground elevation data, it generates fixed-resolution three-dimensional point cloud data within the study area; based on the above data, it obtains horizontal and vertical radiance values; and it assigns the radiance values ​​to the three-dimensional point cloud to visualize the distribution of artificial light at night at an urban scale. This invention enables three-dimensional modeling of nighttime light field distribution at an urban scale.

The present application belongs to the technical field of night rotating target detection, and particularly relates to a rotating target adaptive detection method for unmanned aerial vehicle night aerial photography scene. The present application constructs an end-to-end rotating target adaptive detection mechanism for unmanned aerial vehicle night aerial photography scene through the cooperative processing mode of image decomposition, illumination enhancement, color correction and rotating target detection, realizes effective enhancement and accurate extraction of vehicle target texture information, edge information and direction features in the night low-illumination environment, and through decomposition of night unmanned aerial vehicle aerial photography image into reflection component and illumination component, can perform targeted brightness enhancement on the low-illumination area on the basis of preserving the original structure texture of the vehicle, thereby reducing the influence of dark noise on the target feature extraction process, and through color correction processing on the reflection component, can effectively inhibit the color deviation and local color distortion problems caused by night complex artificial light source, and improve the color authenticity and structure consistency of the enhanced image.

The hydroponic leaf vegetable vertical planting device comprises a hydroponic device and a lifting mechanism movably connected with the hydroponic device, the hydroponic device comprises a side plate assembly and a plurality of hydroponic assemblies sequentially arranged on the side plate assembly from top to bottom, and the hydroponic assemblies are separately connected with a grabbing mechanism. The grabbing mechanism is arranged on the lifting mechanism in an up-down moving mode, the bottom end of the lifting mechanism is connected with the supporting moving mechanism, and the supporting moving mechanism is in limiting connection with the side plate assembly. According to the vertical planting device for the hydroponic leaf vegetables and the planting method of the vertical planting device, the planting space of the leaf vegetables can be increased, meanwhile, convenient operation can be achieved, soil is not needed, a plant nutrient solution and an artificial light source are prepared manually, and the planting efficiency is greatly improved through a three-dimensional vertical planting mode in cooperation with a movable structure capable of being adjusted up and down. The purpose of three-dimensional vegetable planting indoors or in a greenhouse is achieved, and the operation of the high planting unit becomes safe and convenient.

The application discloses a self-powered artificial optical electric synapse with selective detection function and a preparation method thereof, and sequentially grows a polymer dielectric layer and two different ultrathin semiconductor light response layers on a SiO2 / Si substrate, wherein the upper ultrathin semiconductor light response functional layer is semi-covered on the lower ultrathin semiconductor light response layer to form an asymmetric heterojunction, then gold films are transferred to the lower and upper semiconductor light response functional layers as source and drain electrodes by using a non-invasive gold film transfer process, and the preparation of the self-powered artificial optical electric synapse with selective detection function is completed. The self-powered optical electric synapse with selective detection function can selectively detect and process ultraviolet light without any voltage by coupling photovoltaic effect and interface charge capture behavior, and has the ability of wide spectrum detection under the condition of applying voltage, and can simulate the perception and signal processing function of the retina.

The application discloses a light regulation method for promoting rapid propagation and generation multiplication of cherry tomatoes, and relates to the technical field of plant breeding. The method comprises the following steps: providing artificial light sources for the culture of growing cherry tomato plants to promote the growth of the cherry tomato plants, wherein the artificial light sources comprise 80-90% red light and 10-20% blue light in terms of light quality spectrum integral percentage. The application can be used for supplementing when the sunlight as the main light source is weak or can be used as a pure artificial light source for culture. The application can avoid the poor growth of cherry tomatoes caused by the uncertainty of the light intensity and effective light duration of sunlight, and through light regulation, the light environment parameters can be scientifically and accurately improved to regulate the rapid propagation and generation multiplication of cherry tomatoes, so that the cherry tomatoes have the advantages of thick stems and strong disease resistance in the seedling stage, the leaves are dark green, the seedling recovery period is short, the flowering and fruit setting period and the fruiting period are advanced, the stem height of the plants is increased, and the soluble solid content, yield and the like are significantly improved.

The application discloses a kind of artificial light aggregate with multistage gradient structure, belong to artificial light aggregate technical field.The artificial light aggregate of the application includes from inside to outside distribution core, light transition layer, sub-light transition layer and shell;The raw material of core includes multi-source solid waste material and rapid foaming agent;The raw material of light transition layer includes multi-source solid waste material, rapid foaming agent and slow-release pore-forming agent;The raw material of sub-light transition layer includes multi-source solid waste material and slow-release pore-forming agent;The raw material of shell includes multi-source solid waste material and additive.The artificial light aggregate of the application, its bulk density and 1h water absorption are lower, cylinder pressure strength and specific strength are higher, have good application value.

The application discloses an aurora brightness inversion method based on satellite remote sensing data, and comprises the following steps: constructing an atmospheric transmittance lookup table based on VIIRS night light data, inverting DNB band surface reflectivity and calculating moonlight radiation brightness; establishing a radiation transfer equation containing aurora uplink radiation, surface reflected aurora radiation and surface reflected moonlight radiation, and solving aurora real brightness pixel by pixel; and removing abnormal high brightness signals and urban artificial light interference, and obtaining spatially continuous and stable annual aurora brightness distribution through annual scale synthesis and spatial interpolation smoothing. The application can realize wide-range, quantitative and long-time sequence aurora brightness monitoring, effectively overcome the shortcomings of ground-based observation and numerical simulation, and provide reliable technical means for spatial weather research and polar environment monitoring.

The present application relates to the field of plant cultivation, and discloses a method for promoting flowering and improving pollen activity of strawberries to solve the technical problem of how to improve the yield of strawberries.The method for promoting flowering of strawberries comprises the following steps: planting strawberries by using an LED light source as a light source, wherein the percentage of blue light photon flux density in the total photon flux density is 31%-74%, the percentage of green light photon flux density in the total photon flux density is 0%-42%, and the percentage of red light photon flux density in the total photon flux density is 26%-27%.The method for promoting flowering of strawberries can increase the number of present bud plants and the number of production bud plants.The present application also provides a method for improving the pollen activity of strawberries, which can significantly improve the pollen activity of strawberries.The method is beneficial to improving the yield of strawberries in artificial light plant factories, and thus improves the economic benefits.