25 results about "Radiation-Total" patented technology

The application provides a radiation total dose detection system and method based on a radiation color-changing film, and the system comprises a luminosity detection system, a chroma detection system and a calculation module; the luminosity detection system is used for detecting the change of light power transmitted by the first radiation color-changing film; the chroma detection system is used for acquiring the image of the second radiation color-changing film; and the calculation module is used for determining the radiation total dose according to the change of light power and / or the image. The application is based on the corresponding relationship between the transmittance of the radiation color-changing film and the received radiation total dose, that is, when the light power loss transmitted by the film increases, the transmittance of the film decreases, and the received radiation total dose increases; when the color of the film image deepens, the transmittance of the film decreases, and the radiation total dose increases. Thus, the real-time monitoring of the radiation dose is carried out from two angles of the change of transmitted light power and the change of image color, respectively, and the online detection of the radiation total dose of the target environment is realized.

Ultraviolet radiation source (2), in particular an LED emitter or an LED device, comprising at least one LED element (4), the wavelength of the main band gap radiation of which is less than or equal to 380 nm, and a preferably translucent substrate (6) on which the at least one LED element (4) is arranged; wherein the at least one LED element (4) and the translucent substrate (6) are encapsulated in a translucent material (12); wherein a predetermined amount of a fluorescent material (14) is at least partially dispersed in the translucent material (12), and / or on the at least one LED element (4), and / or on or inside the translucent substrate, said fluorescent material (14) being used to generate fluorescent material radiation in the visible light range in the wavelength range of 380-780 nm, preferably 400-500 nm, and wherein the fluorescent material (14) is at least partially dispersed in the translucent material (12), and / or on the at least one LED element (4), and / or on or inside the translucent substrate. To convert a portion of the total radiant power of the at least one LED element (4) into visible light; and the conversion part is 0.1% to 10% of the total radiation power of the at least one LED element (4).

The invention provides a light generating system (1000) comprising (a) first light generating device (110) and (b) a control system (300), wherein: the first light generating device (110) is configured to generate first device light (111), wherein the first device light (111) comprises light having one or more wavelengths in a first wavelength range of 280-320 nm, wherein the first wavelength range comprises a lower subrange from λ11 to λ12 and a higher subrange from λ21 to λ22, wherein 280 nm≤λ11<λ12≤λ21<λ22≤320 nm, and wherein λ12 and λ21 are selected from the wavelength range of 290-315 nm, wherein a wavelength dependent radiant flux of the first device light (111) is controllable: the light generating system (1000) is configured to generate system light (1001) comprising at least part of the first device light (111); the control system (300) is configured to control the wavelength dependent radiant flux of the first device light (111) as a function of time, wherein the light gen-crating system (1000) is configured to provide the first device light (111) at a first time t1, at a second time t2, and at a third time t3; wherein the second time t2 is temporally arranged after the first time t1, and the third time t3 is temporally arranged after the second time t2; and wherein the first time t1, the second time t2, and the third time t3 are temporally arranged in a single day; wherein relative to a total radiant flux in the first wavelength range the radiant flux of the first device light (111) in the lower subrange is relatively lower at the first time t1 than at the second time t2, and wherein relative to the total radiant flux in the first wavelength range the radiant flux of the first device light (111) in the higher subrange is relatively higher at the first time t1 than at the second time t2; and / or wherein relative to the total radiant flux in the first wavelength range the radiant flux of the first device light (111) in the lower subrange is relatively higher at the second time t2 than at the third time t3, and wherein relative to the total radiant flux in the first wavelength range the radiant flux of the first device light (111) in the higher subrange is relatively lower at the second time t2 than at the third time t3.

The application discloses a total radiation prediction data revision method based on satellite inversion and ground monitoring, and relates to the field of prediction data revision.The method comprises the following steps: acquiring prediction data and inversion data corresponding to total radiation of a target photovoltaic station, and simultaneously collecting monitoring data of the total radiation of the target photovoltaic station; establishing a mapping model based on the inversion data, correcting the monitoring data by using the mapping model, and outputting a total radiation monitoring correction value according to the correction result; taking the total radiation monitoring correction value as input and combining meteorological parameters in a target period to establish a prediction data revision model, and outputting a revision result of the prediction data of the target photovoltaic station in combination with a verification rule.The application is based on satellite inversion and ground monitoring, realizes revision of numerical mode total radiation prediction data, and thus provides complete total radiation time series prediction data for a photovoltaic power station, and improves short-term prediction accuracy of power generation of the photovoltaic power station.

The invention discloses a two-dimensional infrared temperature measurement method and device for the wall surface of a combustion chamber of a heavy-duty gas turbine. The temperature measurement method comprises the following steps: determining gas transmittance, target emissivity and a measurement wave band; calibrating the key parameters; establishing a target exitance formula, an environment reflection exitance formula, a gas exitance formula and a total radiation energy formula; solving the radiation exitance of the target black body; and according to the Planck's law, the real temperature is calculated. The two-dimensional temperature monitoring system for the wall surface of the combustion chamber of the heavy-duty gas turbine in the high-temperature and high-pressure environment is formed on the basis of an infrared thermal radiation imaging technology in combination with emissivity measurement and gas transmittance calculation, and non-contact two-dimensional wall temperature full-working-condition real-time online accurate measurement is achieved; and an important foundation is laid for dynamic optimized operation and intelligent service life management of the gas turbine.

The invention discloses a multi-source data fused vertical plane hourly total radiation calculation method and related equipment, and the method comprises the steps: firstly obtaining multi-source data of a target area, including horizontal plane solar radiation, ground meteorology, satellite inversion data and astronomical parameters; judging data conditions of a target area, wherein the data conditions are divided into two types with and without horizontal plane solar radiation data; selecting a corresponding input parameter combination from the multi-source data according to the data condition, selecting the horizontal plane solar radiation data and the ground meteorological data when the horizontal plane solar radiation data exists, and selecting satellite inversion and astronomical parameters when the horizontal plane solar radiation data does not exist; then training a predefined machine learning model by using the selected parameter combination to obtain a trained vertical plane hourly total radiation calculation model; and finally, inputting current multi-source data into the model to obtain a vertical plane hourly total radiation calculation value of the target area. The method aims at solving the problem that an existing method depends on experience judgment on input variable selection, so that the adaptability and generalization ability of a model are insufficient in a data condition change scene.

The application discloses a monomer building photovoltaic resource measurement method and system based on a parameterized model library, and is applied to the technical field of intelligent analysis, and the method comprises the following steps: constructing a basic solar radiation model library of a target region; acquiring three-dimensional data of a target building and surrounding buildings of the target building in the target region, and identifying all effective shelter buildings; identifying a radiation influence coefficient of each effective shelter building on the surface of the target building at different time periods through the basic solar radiation model library, and superimposing the radiation influence coefficients of all the effective shelter buildings to form a total radiation influence coefficient; and analyzing a region where photovoltaic components can be installed on the target building according to the total radiation influence coefficient. The application solves the inherent defects of high calculation cost and weak shelter influence evaluation of the existing method by using the standardized basic solar radiation model library, and provides core tool support for scientific deployment of monomer building photovoltaic.

The application relates to the technical field of photovoltaic power station evaluation, and particularly discloses a photovoltaic power station total solar radiation data correction method and system. The method uses high-precision ground surface radiation observation sequence data of a solar radiation in a certain range of the power station, corrects a weather scale radiation component, namely a low-frequency component, of meteorological satellite radiation sequence data at a position of the power station according to spatial similarity and randomness of total solar radiation through a wavelet analysis method, reduces deviation caused by an optical thickness related parameter model inversion, and improves evaluation accuracy of satellite radiation data.

The invention discloses a solar irradiance scene generation method considering multiple time dimensions and a related device, and the method comprises the steps: obtaining the extraterrestrial radiation data of a target geographic position, and constructing a daily clearness index sequence based on the extraterrestrial radiation data of the target geographic position; obtaining a symbolic aggregation approximate sequence; a plurality of types of daily clear sky state DCS are obtained; constructing a state transition vector, and generating a DCS sequence of multiple consecutive days based on the state transition vector and a plurality of types of day clear sky state DCS; in each type of daily clear sky state DCS in the DCS sequence, randomly selecting a corresponding SAX symbol sequence, generating a daily definition index sequence according to conditional probability distribution corresponding to each symbol in the selected SAX symbol sequence, substituting the daily definition index sequence into a clear sky radiation model, and calculating to obtain intraday hourly total radiation data, the solar irradiance scene is constructed based on the intraday hourly total radiation data, the method and the related device generate the solar irradiance scene, and the scene authenticity and diversity are high.

The invention discloses a method and a system for measuring and calculating photovoltaic resources of a single building based on a parameterized model library, which are applied to the technical field of intelligent analysis, and the method comprises the following steps: constructing a basic solar radiation model library of a target area; obtaining three-dimensional data of a target building in the target area and surrounding buildings of the target building, and identifying all effective shielding buildings; identifying radiation influence coefficients of each effective shielding building on the surface of the target building in different time periods through the basic solar radiation model library, and superposing the radiation influence coefficients of all the effective shielding buildings to form a total radiation influence coefficient; and according to the total radiation influence coefficient, analyzing an area where the photovoltaic module can be installed in the target building. According to the method, the inherent defects that an existing method is high in computing power cost, weak in shielding influence evaluation and the like are overcome through the standardized basic solar radiation model library, and core tool support is provided for scientific photovoltaic deployment of a single building.

The application provides an online radiation total dose detection method based on fiber micro-bending loss, which comprises the following steps: firstly, placing a reaction cavity in a detection device at a detection position; a transmission window is arranged on the reaction cavity, and a polyethylene detection material is arranged in the reaction cavity; secondly, arranging the transmission window to face a radiation source; an elastic film is arranged on the reaction cavity, so that the inside of the reaction cavity is a sealed environment; then, acquiring a power value at a current time detected by a fiber micro-bending sensor in the detection device; one end of the fiber in the fiber micro-bending sensor is connected to a light source, and the other end is connected to an optical power meter; the fiber is arranged directly above the elastic film; finally, determining the radiation total dose at the current time according to the power value at the current time. The application is based on the principle of fiber micro-bending loss, and the radiation total dose received by the detection material is calculated by monitoring the power change of the fiber in real time, so that the online detection of the radiation total dose of a target environment is realized.

The application discloses a high-power microwave antenna establishing method, and belongs to the technical field of antennas. The method comprises the following steps: determining the total radiation aperture of the antenna according to the size and gain requirement of the microwave antenna of a system, and estimating the aperture and quantity of the required transmitting antenna by considering the beam synthesis efficiency; and selecting a proper rotating table according to the aperture and quantity of the transmitting antenna. Since the antennas are installed on the same rotating table, the consistency between the antennas can be ensured through a tooling, so that all the antennas can be simultaneously aimed at a target or a certain direction by rotating the rotating table, the signal transmitting distances of the antennas to the target are the same, and the effective radiation power in a certain direction can be maximized by only ensuring that the amplitude, phase and time delay of the front-end link of the transmitting antenna are the same. Since the antennas are on the same rotating table, the driving systems of the antennas are the same, and the influence of the time delay between different driving systems is eliminated.

The invention relates to the technical field of new energy, and discloses a total irradiation intensity ultra-short-term prediction correction method, which comprises the steps of collecting multi-source data of a photovoltaic power station; based on the historical total radiation intensity and satellite inversion data of the photovoltaic power station, extrapolating the total radiation intensity in a future time period by using a partial least square technology to obtain total radiation intensity extrapolation forecast data; based on the numerical weather return data and the numerical weather forecast data, predicting a weather abrupt change index and a weather abrupt change probability of a future time period, and identifying weather phase state features of the future time period in combination with a collaborative analysis result of the weather abrupt change index and the weather abrupt change probability; and inputting the total irradiation intensity extrapolation forecast data and the weather phase state characteristics as influence sources into a pre-constructed total irradiation intensity correction model, and outputting a real-time total irradiation intensity correction value through the total irradiation intensity correction model. According to the method, the total irradiation intensity ultra-short-term prediction correction is realized by combining the historical data of the photovoltaic power station, the satellite inversion data and the numerical mode data.

The application provides an air energy-carrying radiation air conditioner work station air supply end system and a radiation capacity calculation method thereof. The system comprises an air conditioner unit, which is communicated with a floor radiation cavity below a floor through an air distribution channel. A supply air pipe is arranged on a double-sided radiation plate corresponding to the work station on the floor. The lower end of the supply air pipe is communicated with the floor radiation cavity, and the upper end is connected with a cavity of the double-sided radiation plate of the work station. Radiation holes are distributed on the two sides of the double-sided radiation plate. The calculation method comprises the following steps: step one, calculating the capacity of the double-sided radiation plate of the work station; step two, calculating the radiation capacity of the floor radiation cavity; and step three, verifying whether the total radiation capacity of the capacity of the double-sided radiation plate of the work station and the radiation capacity of the floor radiation cavity meets the required radiation per unit area of the room.

The application discloses a kind of solar irradiance scene generation method considering multiple time dimensions and related devices, comprising: obtaining extraterrestrial radiation data of target geographic position, daily clearness index sequence is constructed based on the extraterrestrial radiation data of target geographic position;Get symbolic aggregate approximation sequence;Get several types of daily clearness state DCS;State transition vector is constructed, and the DCS sequence of continuous multiple days is generated based on the state transition vector and several types of daily clearness state DCS;In each type of daily clearness state DCS in the DCS sequence, a corresponding SAX symbol sequence is randomly selected, and the daily clarity index sequence is generated according to the conditional probability distribution corresponding to each symbol in the selected SAX symbol sequence, the daily clarity index sequence is substituted into clearness radiation model, and the total radiation data of time in day is calculated, and the solar irradiance scene is constructed based on the total radiation data of time in day, the method and related devices generate solar irradiance scene, and the scene authenticity and diversity are higher.

This invention relates to the field of electromagnetic compatibility technology, and particularly to a method, device, electronic device, and storage medium for predicting far-field radiation from a communication power supply. The method includes: analyzing the common-mode noise propagation path of the communication power supply and establishing a dual-excitation-source radiation model containing both input port and output port common-mode excitation sources. This application achieves separate analysis of the radiation contributions from the input and output ports by establishing a dual-excitation-source radiation model; improves the accuracy of key parameters by obtaining the impedance parameters of each port separately and accurately converting the excitation source voltage using a sampling measurement circuit; further, it obtains the maximum radiation transfer function through full-angle simulation to ensure prediction coverage of the worst-case scenario; finally, it calculates the total radiation prediction value by integrating the above parameters, thus forming a complete and reliable prediction process that significantly improves the accuracy and practicality of far-field radiation prediction.

The invention relates to an antenna emission capability test method and device capable of eliminating fluctuation. Acquiring first radiation power of a standard antenna in the darkroom at a plurality of polarization angles; obtaining a first radiation power curve according to the first radiation power of each polarization angle; determining a target polarization angle and target radiation power corresponding to the target polarization angle according to the first radiation power curve; calculating a correction factor according to the theoretical radiation power and the target radiation power of the standard antenna; after the standard antenna in the darkroom is replaced by the tested antenna, obtaining second radiation power of the tested antenna at multiple polarization angles; correcting the second radiation power of each polarization angle according to the correction factor, smoothing the corrected second radiation power, and calculating the total radiation power of the tested antenna; and according to the total radiation power, determining whether the emission capability of the tested antenna reaches the standard. According to the method, fluctuation is eliminated, and the accuracy of antenna emission capability testing is improved.

The invention discloses a photovoltaic power station power sudden change early warning method based on ground meteorological station data, and belongs to the technical field of solar power generation. The method comprises the steps of data reading and preprocessing, key index calculation, dynamic threshold reading, logic judgment, early warning information generation and release and historical data queue updating. The method comprises the following steps: regularly reading total radiation GHI and scattered radiation DIF data of an existing meteorological station of a photovoltaic power station, calculating a scattering proportion Kt and a total radiation decline rate R after preprocessing, and constructing a dual-condition judgment logic by combining dynamic thresholds Rth and Kth, rth and a scattering proportion change rate dKdt gt; and when Kth is greater than Kth, generating and issuing early warning information. Hardware does not need to be newly added, and the cost is low; the device is not influenced by severe weather and has high reliability; the algorithm is simple, and the response real-time performance is high; the early warning mechanism is clear, the accuracy is high, buffer time can be provided for power grid dispatching and energy storage adjustment, and the friendly grid connection characteristic of photovoltaic power generation is improved.

A solar radiation mitigation system mountable to a furniture element, the solar radiation mitigation system comprising a panel assembly comprising a first panel capable of blocking a first radiation amount, and a second panel in operational relation with the first panel and detachably connected thereto, the second panel being capable of blocking a second ra- diation amount, wherein the panel assembly blocks a combined radiation amount greater than the first and second radiation amounts when the first and second panels are in operational relation, at least one adjustable arm com- prising a distal arm connector connected to the first panel, a proximal arm connector being detachably attachable to the furniture element for mount- ing the system to the furniture element, and an elongated member extending from the proximal arm connector to the distal arm connector, the elongated member being adjustable to position and orient the first panel with respect to the furniture element.

This invention proposes a method for obtaining the radiation field of a large-scale array antenna, mainly addressing the problems of low computational efficiency and long computation time in existing technologies for obtaining the radiation field of large-scale array antennas. The implementation scheme is as follows: 1) Construct a subarray model and obtain subarray radiation field data; 2) Translate the subarray and perform spherical wave expansion on the translated radiation field; 3) Calculate the radiation field of the i-th antenna element in the subarray model according to the spherical expansion formula; 4) Repeat steps 2) and 3) to obtain the radiation fields of all antenna elements in the subarray; 5) Calculate the radiation field of each element of the large-scale array antenna based on the radiation fields of the subarray elements and superimpose the radiation fields of all elements to obtain the total radiation field of the large-scale array antenna. This invention uses subarray radiation field data, obtains the radiation field of each element of the subarray through mode filtering, and extrapolates to the large-scale array antenna, improving computational efficiency and shortening computation time, and can be used for obtaining the radiation field of large-scale array antennas.

The application discloses a kind of power VDMOS device total dose and single particle grid breakdown harmony effect simulation method, based on TCAD simulation platform establishes power VDMOS device total dose effect and single particle grid breakdown harmony effect simulation model, the simulation model of total dose effect and single particle effect is simulated on the same power device, the influence of multiple radiation effects on device in space application is analyzed using simulation model;The application establishes electrical model, radiation total dose model, single particle model by power VDMOS device, simulates the total dose effect of different irradiation dose on device, and in the transient process of power VDMOS device occurs harmony, the evolution process of important electrical physical parameter is tracked, comparative analysis is made, effectively sensitivity evaluation and protection design of power device under integrated radiation field provide theoretical support.The method has the characteristics of convenient, economic, efficient, provides technical support for protection design of power VDMOS device in space application.

The application provides an online radiation total dose detection method, which comprises the following steps: determining a corresponding detection device according to radiation source information; the detection device comprises an irradiation cavity and a shielding box, and the irradiation cavity attenuates the received radiation to within a target threshold; placing the detection device at a target detection position; turning on a light source and an optical power meter in the shielding box; an optical fiber is arranged in the irradiation cavity, one end of the optical fiber is connected to the optical power meter in the shielding box, and the other end is connected to the light source in the shielding box; the optical power meter detects the optical power value of the optical fiber and sends the optical power value to a computer through a cable; and the computer determines the radiation total dose of the target detection position according to the optical power value. The application utilizes the principle of optical fiber radiation damage, places the detection device at the target detection position, detects the change of the optical power value of the optical fiber in the device in real time, calculates the corresponding radiation total dose, and realizes the online detection of the radiation total dose of the target environment.

The invention provides a near-ground received radiation quantity calculation method, and belongs to the technical field of solar energy resource evaluation, and the method comprises the steps: S1, obtaining the historical data of astronomical parameters of a to-be-calculated region, the astronomical parameters comprise a radiation period, a solar constant, geographic latitude, a sun-earth distance, solar declination, sunrise and sunset hour angles, total ground radiation quantity, sunshine duration, half-day sunshine duration and astronomy difference; s2, dividing the historical data of the astronomical parameters into twenty-four groups according to solar terms; s3, based on grouping, 24 ground total radiation quantity calculation equations are constructed respectively; the historical data of the astronomical parameters are divided into twenty-four groups according to the solar term days over the years, the time range is refined through the ground total radiation quantity calculation formula of each group, the linear regression relation between the ground total radiation quantity and the sunshine percentage is accurately fitted, and the deviation between the measured data of the meteorological station and the formula calculation result is remarkably reduced.

The invention discloses a method for determining the total hourly radiation of a horizontal plane and related equipment, and the method comprises the steps: obtaining an all-sky image sequence and an astronomical parameter sequence of a target region in a target time period, and enabling the astronomical parameter sequence to at least comprise the hourly astronomical radiation of the horizontal plane; performing time alignment processing on the all-sky image sequence and the astronomical parameter sequence to obtain all-sky image data and astronomical parameter data which are matched in time; inputting the all-sky image data after time alignment into a pre-trained first feature extraction model to obtain an image feature vector, and inputting the astronomical parameter data after time alignment into a pre-trained second feature extraction model to obtain a numerical feature vector; fusing the image feature vector and the numerical feature vector, and determining a horizontal plane hourly clearness index of the target area in the target time period based on the fused feature; and based on the horizontal plane hourly astronomical radiation and the horizontal plane hourly clearness index, determining the horizontal plane hourly total radiation of the target area in the target time period. The objective of the invention is to solve the problem that high-precision hourly total radiation data cannot be obtained under various weather conditions due to scarcity of ground actually measured radiation data and meteorological observation data in the prior art.