8 results about "Radiation response" patented technology

The present application belongs to the technical field of equipment calibration, and particularly relates to an infrared radiation measuring equipment calibration device and method with a diffusing reflector lens cover integrated. The infrared radiation measuring equipment comprises a telescope lens barrel, and the calibration device comprises a cylinder, a lens cover and a diffusing reflector. The cylinder is sleeved on the outer edge of the front end of the telescope lens barrel, the lens cover covers the aperture of the cylinder, and the diffusing reflector is attached to the inner side of the lens cover and is synchronously turned with the lens cover. The calibration device is small in size, simple in operation, high in measurement accuracy, and beneficial to field use. The calibration method using the device has a large dynamic range, a fast calibration speed, and can effectively improve the work efficiency.

The application discloses a position adaptive method for microwave brightness temperature fast simulation, and relates to the technical field of remote sensing radiation transmission and artificial intelligence. The application adopts a position adaptive U-Net structure, while keeping the advantages of cross-scale feature fusion and skip connection of an encoder-decoder, introduces an LC non-shared convolution layer before the decoding end output, establishes a position-radiation response relationship in units of pixels, and thus significantly enhances the adaptation capability to complex land surface spatial heterogeneity and non-stationarity without explicitly introducing static priors such as surface emissivity and vegetation type. The method of the application takes meteorological variables and observation viewing angle parameters as inputs, takes satellite microwave brightness temperature as a supervision signal, is trained and verified based on the adopted L1 index, and obtains optimal weights by using a learning rate adaptation and an early stopping strategy. The application significantly reduces the processing complexity, improves the spatial structure consistency, and especially performs outstandingly in scenes such as abrupt slope direction, dry-wet transition zone and scanning edge angle.

This application provides a method for damage detection and early warning of conveyor belts based on multispectral vibration sensing, applied in the fields of mine safety monitoring and industrial equipment fault diagnosis. The method includes: collecting the multispectral radiation response and structural vibration response of the conveyor belt during operation; constructing a joint distribution map of energy absorption and phase hysteresis to identify spectral anomaly regions; analyzing the consistency of vibration propagation to locate regions of enhanced vibration reflection or abnormal dissipation; performing spatiotemporal consistency verification on spectral anomalies and vibration distortion characteristics to confirm structural damage and its spatial location; tracking the rate of change of vibration reflection and the spectral spread rate to construct physical criteria for damage evolution and output risk level warnings. This invention, through multispectral and vibration dual-mode fusion detection and spatiotemporal verification, achieves early identification and precise location of internal damage to the conveyor belt, effectively preventing serious accidents such as belt breakage and improving the predictive maintenance level of equipment operation.

This invention relates to the field of damage assessment technology, specifically to an intelligent assessment method and system for the degree of tumor tissue damage after radiotherapy. The method includes the following steps: based on the radiation dose distribution and voxel grayscale information output by the radiotherapy equipment, temporal pairing and spatial indexing are completed; then, grayscale changes are analyzed to determine the tumor boundary; grayscale and dose characteristics are statistically analyzed layer by layer; spatial localization items of sensitive layers are identified; damage grading parameters are adjusted; and damage grading classification markers are output. This invention dynamically registers the spatial structure of radiation dose with voxel grayscale data to establish a multi-ring layer parameter set for the tumor and adjacent tissues, achieving layered localization and extracting key spatial features. It directly correlates dose distribution differences with damage grading adjustment parameters. Combined with spatial markers and grading standards, it can accurately classify the radiation response of the tumor boundary and adjacent sensitive areas, completing a detailed determination of the damage level and improving the structured expression and multi-dimensional identification capabilities of the assessment results.

This invention discloses a method for optimizing the layout of photovoltaic green facades based on light radiation response and visual continuity constraints. The method includes: S1, facade discretization and calculation of total annual light radiation; S2, constructing a parameterized facade module model, defining a type gene and a length parameter gene for each cell; S3, establishing a multi-objective optimization function model: a life-cycle cost function, a net carbon emission function, and a visual discontinuity penalty function; S4, employing a multi-objective evolutionary algorithm, minimizing each objective function in the multi-objective optimization function model, iteratively optimizing the population composed of the type genes and length parameter genes of all cells to obtain a Pareto optimal solution set; S5, selecting a solution from the Pareto optimal solution set for photovoltaic and green facade layout. This invention enables refined calculations based on microscopic light environment conditions, balances the dual objectives of cost and carbon reduction, and ensures that the facade visual effect presents natural, continuous, and gradual characteristics.

The application provides a non-far-field-based SAR data calibration method and device, acquires SAR original echo data, trajectory data of radar motion and geometric parameters of target imaging; constructs a non-far-field radiation response model based on the trajectory data and the geometric parameters, and constructs a corresponding compensation function; performs non-far-field radiation compensation and imaging processing on the original echo data according to the compensation function, to obtain a first image; calculates a radiation calibration coefficient according to the first image, and performs radiation calibration on the first image according to the radiation calibration coefficient. The radiation response model of the target can be established under the non-far-field condition, the influences of factors such as the changing distance between the target and the radar, spherical wave propagation, the change of the directional diagram and the change of the viewing angle on the image intensity are analyzed and compensated, so that the radiation calibration suitable for the vehicle-mounted SAR scene is realized.

A rapid radioactive source location device and method are disclosed, relating to the field of nuclear radiation detection technology. The rapid radioactive source location device includes a housing assembly, a collimator assembly, a camera, and Geiger tube nuclear radiation sensors. The housing assembly includes a top cover and a base. The collimator assembly includes collimator A and collimator B. The camera includes a lens and an active pixel sensor. The lens slides into the inner hole of collimator A. The active pixel sensor is located inside the lens and faces it. Multiple Geiger tube nuclear radiation sensors are slidably installed in the inner holes of each collimator B. The advantages of this invention are that it utilizes the high sensitivity of the Geiger tube nuclear radiation sensor at extremely low radiation intensities and the radiation response of the active pixel sensor at low to high radiation intensities, meeting the wide-range detection requirements for searching and locating radioactive sources, and enabling radioactivity level detection in various complex environments.

The application discloses a kind of optical remote sensing image quality comprehensive evaluation method, it is related to optical remote sensing image technical field, including S1 image sample place time confirmation, S2 image sample partition division, S3 with radiation response and and noise level obtains radiation wavelength, S4 data acquisition and record, S5 image cutting splicing, S6 optical transfer function and signal-to-noise ratio adjustment and S7 image sample comparison.The application obtains the radiation wavelength of shooting position by using optical transfer function and signal-to-noise ratio, according to the interval size of radiation wavelength to distinguish the way of picture definition, can avoid the cumbersome procedure that traditional optical remote sensing image imaging photo quality identification needs to use human eye judgment, and using radiation wavelength to distinguish the scheme of photo definition, can make the definition of photo change from image detection to data calculation, which makes the result of optical remote sensing image quality comprehensive evaluation more objective.