349 results about "Radiation measurement" patented technology

The invention relates to the technical field of radiation measurement, in particular to a radiation data calibration method for a regional radiation monitor, which comprises the following steps of: according to the variation trend of data in a local range of each moment in a radiation slope sequence of each position and the difference of time intervals between all adjacent extreme points in a radiation data curve, calculating the radiation data of the regional radiation monitor; obtaining the interference degree of the radiation data at each moment of each position; according to the correlation degree between the radiation data sequence of each position and the radiation data sequence of other positions and the interference degree, the corrected interference degree of the radiation data of each moment of each position is obtained; and correcting the radiation data of all positions at each moment according to the distribution of the radiation data of all positions at each moment in the region and the corrected interference degree to obtain the radiation data after region calibration. According to the invention, the accuracy of regional radiation data monitoring is improved.

The invention relates to the field of infrared radiation measurement, in particular to a response drift correction device and method for a large thermal inertia infrared system, and the method comprises the steps: respectively arranging a temperature sensor on each optical structure in the large thermal inertia infrared system; placing the large thermal inertia infrared system in different environment temperatures, and carrying out radiometric calibration measurement on the large thermal inertia infrared system by using a calibration black body; temperature values measured by the temperature sensor at different environment temperatures form a temperature vector; calculating a variance expansion factor of each temperature vector, and selecting the temperature vectors meeting conditions as a characteristic temperature subset representing stray radiation in the infrared system; constructing an infrared system response model based on the characteristic temperature subset, and performing multivariate linear fitting on the infrared system response model based on data measured by radiometric calibration to obtain a model coefficient; and performing response drift correction on the large thermal inertia infrared system by using the corrected infrared system response model. The large thermal inertia infrared system response drift correction method can realize large thermal inertia infrared system response drift correction under a wide temperature range.

The invention discloses a dual-band infrared radiation attitude estimation method for deep learning assisted extended Kalman. The method comprises the following steps: analyzing the influence of geometric errors and random errors in dual-band infrared radiation measurement signals on attitude estimation reliability; the method comprises the following steps: constructing a CBGTE model to eliminate geometric errors and random errors in dual-band infrared radiation signals, firstly, collecting a dual-band infrared radiation signal data set by using a semi-physical simulation platform, cleaning the dual-band infrared radiation signal data set, inputting the dual-band infrared radiation signal data set into a BGT neural network for feature learning, and storing an optimal weight; and inputting data obtained by the dual-band infrared radiation sensor into the BGT neural network with the optimal weight to obtain infrared radiation data after compensation of random errors, and inputting the data after filtering of the random errors into an extended Kalman algorithm to filter geometric errors to obtain reliable attitude angle information. The invention provides a high-precision and robust attitude information acquisition and processing method for a spinning unmanned aerial vehicle taking infrared radiation as an attitude measurement method.

The invention relates to the technical field of electromagnetic radiation measurement, and discloses a near-field scanning system and a rapid scanning method for electromagnetic radiation measurement. The near-field scanning system comprises a data acquisition unit, a probe control moving unit and a control unit; the data acquisition unit comprises a vector network analyzer and a spectrum analyzer which are used for frequency domain measurement, an oscilloscope and a radio frequency signal source which are used for time domain measurement, and a near-field electromagnetic probe; the probe control moving unit is used for controlling the near-field electromagnetic probe to move along a set route in the X direction, the Y direction and the Z direction; the control unit is used for synchronously controlling the data acquisition unit and the probe control moving unit; according to the rapid scanning method, by judging the gradient amplitude and the local self-adaptive threshold value of each scanning point, the scanning points are encrypted at the place where the electromagnetic field changes rapidly, rough scanning is carried out at the place where the electromagnetic field changes slowly, and compared with equal-interval uniform sampling, the number of the scanning points can be reduced, and the efficiency of a near-field scanning system can be improved.

The invention provides a wide-area distributed photovoltaic power generation efficiency evaluation method, and relates to the technical field of photovoltaic power generation efficiency evaluation, and the method comprises the steps: obtaining the reanalysis time series data of the solar radiation of an area where a distributed photovoltaic power station is located, calculating a feature vector through employing an empirical orthogonal function decomposition method, and calculating the power generation efficiency of the distributed photovoltaic power station; a meteorological resource representative point set of final site selection is screened out in combination with site selection conditions; collecting the earth surface solar total radiation measurement data of the meteorological resource representative point set, and correcting the reanalysis time sequence data through a singular value decomposition method; matching a solar radiation reanalysis grid for the distributed photovoltaic power station, and evaluating the distributed photovoltaic power generation efficiency through a physical method and a statistical method based on the reanalysis time sequence data after correction processing to obtain an evaluation value. The method has wide applicability, and resource distribution analysis can be realized only by using a public weather reanalysis data set covering the whole world.

An apparatus and method for radiation measurement are used to determine clearance of a rotating gas turbine component. The apparatus includes a probe body on a stationary component outward of the rotating component and a pair of sensor assemblies coupled to the probe body. Each sensor assembly includes a plurality of prisms coupled to the probe body Each prism of the plurality of prisms has a distinct angular orientation to direct radiation from the focusing lens to the rotating component surface off-axis with respect to an axis of the respective radiation source of the pair of radiation sources and with less directional variation than radiation from the respective radiation source.

The invention discloses a full center dose verification method based on a no-wash film EBT3, and belongs to the technical field of radiation measurement, and the method specifically comprises the following steps: continuously collecting an irradiated radiation chromatography film, and synchronously obtaining gray data and a scanning device driving voltage sequence; establishing a response function model between the driving voltage and the gray response according to the driving voltage value at each acquisition moment and the mean value of the corresponding gray data; determining a target voltage in advance, determining a correction coefficient corresponding to each driving voltage value based on the target voltage and the response function model, correcting a preset dose-gray curve graph according to the correction coefficient, obtaining the gray data of the current film and the corresponding driving voltage, and correcting the gray value point by point by using the correction coefficient, and based on the corrected dose-gray curve, converting into a dose value, and finally generating a dose distribution diagram. According to the invention, through real-time monitoring and dynamic correction of scanning voltage fluctuation, the accuracy of dose measurement is significantly improved.

According to the receiver noise coefficient testing method based on high-precision radiation measurement, a calibration source outputs different brightness temperature signals to calibrate a receiver in real time, and high-precision measurement of the noise coefficient of the receiver can be achieved by calculating the equivalent noise temperature. An actual brightness temperature scene is integrally simulated, the radiation measurement method is more accurate, and the test precision is improved; the calibration source realizes accurate and stable cold source and heat source based on liquid nitrogen refrigeration and physical heating, and has the advantages of high output precision, long stabilization time and the like, and the long-time stabilization precision can reach 0.1 k / 3 days; and meanwhile, the output brightness temperature of the high-precision calibration source is between 90K and 330K and is closer to an actual brightness temperature scene, so that a relatively large nonlinear error caused by nonlinearity of an internal amplifier of the receiver can be avoided, and the test precision is greatly improved.

The invention discloses a temperature calibration device capable of tracing to second definition and a temperature calibration method, and belongs to the field of temperature measurement and quantum precision measurement. The inner walls of a blackbody radiation reference shielding cavity and a blackbody radiation measurement shielding cavity in the device are blackened and are independently arranged in a vacuum cavity; the pulse tube refrigerator is connected with the blackbody radiation reference shielding cavity, the fourth-order Peltier is connected with the blackbody radiation measurement shielding cavity, one end of the high-heat-resistance quartz tube is arranged in the blackbody radiation measurement shielding cavity, and the other end of the high-heat-resistance quartz tube is arranged outside the vacuum cavity. And a platinum resistance thermometer to be calibrated is arranged in the high-heat-resistance quartz tube and is in close contact with the blackbody radiation measurement shielding cavity. The problem that in the prior art, the absolute uncertainty of a temperature calibration result at the room temperature is too high, and the requirement for high-precision measurement is difficult to meet can be solved.

The invention provides a high-precision and high-time-resolution terahertz wave band tau radiation measuring device. The high-precision and high-time-resolution terahertz wave band tau radiation measuring device comprises an antenna module, a calibration assembly, a local oscillator signal source module, a refrigeration module, a superconducting receiver module, a data acquisition module and a system control module. Measurement of atmospheric opacity and atmospheric radiation temperature calibration in any direction of a station site are realized through the antenna module and the calibration assembly. The superconducting receiver module adopts a superconducting SIS mixer, the detection sensitivity is improved by one order of magnitude compared with that of a normal-temperature Schottky mixing receiver, and high-precision and high-time-resolution atmospheric opacity measurement can be realized by combining the narrow-band frequency gating and real-time spectrum data quick reading characteristics of a high-spectrum-resolution real-time FFT spectrum analyzer of the data acquisition module. And meanwhile, a real-time FFT frequency spectrograph of the data acquisition module of the device has high-frequency-resolution frequency spectrum processing capability, so that the device can be used as a spectral line receiver with high sensitivity and high frequency spectrum resolution, and terahertz astronomical molecule spectral line observation with high frequency spectrum resolution can be realized.

According to the plant perception mechanism and proximity physics bidirectional synchronous detection platform and the use method, a functional unit comprises a growth chamber system, an illumination system, a radiation detection system, a point cloud detection system and an angle control system, and the angle control system is used for controlling the detection angles of the illumination system, the radiation detection system and the point cloud detection system. The high-precision multi-angle measurement of illumination change, reflection attribute change and corresponding form adjustment of a target plant is supported. Therefore, the method not only can deduce the perception (phototropism and gravitational tropism) mechanism of the plant from the combined information of the received illumination change and the corresponding form adjustment, but also can analyze the proximity physics of the plant from the combined information of the received illumination change and the reflection attribute change in combination with the form record at the corresponding moment; based on a corresponding specific implementation method, the platform can realize bidirectional synchronous detection of a plant sensing mechanism and near sensing physics.

The invention discloses an efficient calibration method for a wide-dynamic-range infrared radiation measurement system, and belongs to the field of infrared radiation measurement, and the method comprises the steps: 1, building an infrared radiation measurement system response model considering the influence of an attenuation slice and integral time according to the energy transmission process of the variable attenuation slice and integral time infrared radiation measurement system; step 2, executing a black body image acquisition strategy; and 3, according to the infrared radiation measurement system response model considering the influence of the attenuation slice and the integral time in the step 1, establishing an objective function by using a weighted least square method, and minimizing the objective function by using an optimization algorithm to solve a calibration coefficient in the infrared radiation measurement system response model. According to the technical scheme, the wide-dynamic-range infrared radiation measurement system can efficiently complete the radiation calibration task in a time-saving mode, and compared with a conventional calibration method, the calibration speed can be increased by several times on the premise that the calibration precision is not reduced.

The invention relates to the technical field of aviation photoelectric imaging, in particular to a multi-load aviation photoelectric pod timing system control system which comprises a timing system analysis module, a synchronous control module, a communication control module and an information superposition module. The timing system analysis module generates an absolute moment, the synchronization control module provides a multi-source synchronization pulse signal, the communication control module realizes data interaction and generates additional information including the absolute moment, a pose and a system state, and the information superposition module synchronously superposes the additional information to image data. According to the technical scheme, automatic matching of the image and the telemetry data is achieved, the problems of poor synchronization precision and low efficiency caused by manual matching are solved, and the difficulty and workload of rear-end processing such as image splicing and radiation measurement are remarkably reduced.

The invention relates to a method for determining the layer thickness of an at least partially transparent surface coating on the surface of a substrate, using a measuring device for emitting focused radiation. The invention is characterized in that the distance between the surface of the substrate and the measuring device for emitting focused radiation is changed by a relative movement between the measuring device and the substrate, wherein the image of the radiation is captured in different relative positions, wherein in the case of an image with a clear outline edge, focusing is inferred at the interface between the surface coating and the substrate and the current relative position is stored as the first position, and wherein in the case of an image surrounded by scattering effects, focusing is inferred at the interface between the surface coating and the air and the current relative position is stored as the second position, after which the difference between the first and second positions is used to determine theTaking into account the refractive index of the transparent surface coating, the layer thickness of the at least partially transparent surface coating is determined.

The invention relates to a radiation measurement device comprising a scintillator (12) and a light detector (14), in which an optical pad (22) is arranged between the scintillator (12) and the light detector (14), and the optical pad (22) has a pot-shaped design and has a body (24) with a base (26) and a circumferential wall (28), in which the body (24) has a receiving area (30), the light detector (14) is at least partially accommodated in the receiving area. The invention also relates to an optical mat (22).

The invention provides a radiation energy measurement method and system, and relates to the technical field of radiation measurement, and the method comprises the steps: generating a driving laser by using a laser, focusing the driving laser, irradiating the focused driving laser on a target material in a vacuum chamber, generating plasma, and emitting extreme ultraviolet radiation; acquiring a trigger signal by using a delay generator, and synchronously starting energy acquisition and spectrum detection according to a set time delay; collecting the extreme ultraviolet radiation through an energy measurement module to obtain first radiation energy data; meanwhile, acquiring extreme ultraviolet radiation spectrum data of the same pulse; calculating a spectrum correction factor based on the spectrum data, and correcting the responsivity coefficient of the energy measurement module in real time; and calculating radiation energy in a preset bandwidth range by using the corrected responsivity coefficient. According to the method, the responsivity of the energy meter can be dynamically corrected by combining the spectrum, and the accuracy and long-term stability of the result are ensured.

The invention discloses a light source system capable of continuously adjusting an attenuation ratio, and belongs to the technical field of optical radiation measurement and photoelectric detection. In order to solve the problems of wavelength dependence, discontinuous adjustment, spectrum distortion and the like existing in an existing light intensity adjusting scheme, a combined structure of an integrating sphere and a diaphragm cylinder is adopted, and the device comprises a light source, the integrating sphere with the high-reflection inner wall, a front-end adjustable diaphragm, the diaphragm cylinder with the extinction inner wall and a rear-end adjustable diaphragm. Continuous attenuation of output light intensity in a predetermined dynamic range is realized by adjusting the apertures of the front and rear diaphragms, the lower limit of attenuation ratio meets the requirement, and the dynamic range can reach more than three orders of magnitude. The system uses the integrating sphere to form a stable Lambert light source, the attenuation process depends on geometric parameters, spectral distribution and spatial uniformity basically remain unchanged, and the non-uniformity of a light-emitting surface is not greater than 5%. The invention further provides a calibration method, high-precision attenuation prediction is achieved through detector measurement and view factor model fitting, and the calibration method is suitable for weak cursor calibration, detector linearity testing and other applications.

Diamond sensors for temperature and radiation measurement and helmet for real-time temperature and radiation detection The disclosure relates to a manufacturing process of temperature sensors with detection properties through thermal conduction and electromagnetic radiation. These temperature sensors are NTC (negative temperature coefficient) thermistors that are based on diamond films on flat semiconductor and ceramic substrates. These sensors comprise a diamond surface that is sensitive to temperature and radiation, on one of the substrate surfaces, whether or not protected by a non-temperature-sensitive diamond surface and metal carbide ohmic contacts on the other surface of the substrate. The disclosure also relates to personal protective equipment (PPE) comprising the temperature and infrared radiation detection system for integration into helmets with sensors with high durability and small size, aimed at preventing injuries to professionals from exposure to extreme conditions. The sensors comprising this detection system consist of a layer of polycrystalline boron-doped diamond overlaid by a layer of non-boron-doped polycrystalline diamond.

The invention relates to the technical field of radiation measurement, in particular to a detector calibration device and method in a high-current BNCT mixed field, and the device comprises a front moderation plate, a detector accommodation module, and a detector group. The detector containing module is arranged on one side of the front moderation plate, a plurality of placing holes which are distributed in a circumferential mode are formed in the detector containing module according to a preset radius, the detector group comprises a plurality of detector units, the plurality of detector units are placed in the plurality of placing holes respectively, and the plurality of detector units are arranged in the plurality of placing holes respectively. A gold foil is arranged between the placing hole in the top and the detector unit; and a cadmium-coated gold foil is arranged in the placing hole corresponding to the gold foil mirror image. Therefore, through a double calibration method, low-flux reference calibration and high-flux actual beam correction are combined to improve calibration precision.

The invention relates to the technical field of radiation detection, and discloses a double-wire proportional counter tube and a signal processing method thereof. The double-wire proportional counter tube comprises a cavity made of TU2 oxygen-free copper, two 50 [mu] m gold-plated tungsten wires are arranged in the cavity in parallel to serve as anode wires, the distance between the wires is 1.8 cm, and the anode wires are led out through ceramic insulation terminals. And P10 gas is filled in the cavity. And the signal processing module comprises a pre-amplification circuit, a coincidence circuit, a main amplification circuit and a data acquisition unit, and is used for carrying out coincidence processing on the two paths of anode signals and screening effective signals. The signal processing method comprises the steps of gas ionization, electron avalanche amplification and signal synchronous judgment and recording. The ray measuring device integrates the counting tube, a gas path system and a data acquisition system, background noise is reduced through a coincidence circuit, and an energy spectrum analysis module can be selected to distinguish alpha rays and beta rays. The invention has the advantages of simple structure, high sensitivity, low background noise and the like.

The invention discloses a LoRa-based radiation measurement intelligent safety helmet, relates to the technical field of radiation safety protection and Internet of Things, and is especially suitable for a radiation monitoring environment. The safety helmet comprises a helmet shell, a helmet brim and an external functional layer, a main control PCB and a power supply lithium battery are arranged on the left side and the right side of a helmet body respectively, and an MSND radiation measurement sensor module and a positioning ceramic antenna are integrated in the helmet body. The main control PCB adopts an STM32H750VBT6 high-performance chip, cooperates with a LoRa module, an MSND radiation measurement sensor, a temperature and humidity sensor and a Beidou / GPS dual-mode positioning module, and realizes ultra-long-distance low-power-consumption data transmission through a LoRa ad hoc network. Through a LoRa relay mechanism, the data packet loss rate in a complex environment is close to 0, the problems that a traditional safety helmet is short in communication distance, poor in endurance and heavy to wear are solved, the safety helmet is suitable for high-risk scenes such as radiation monitoring, electric power, electricity and buildings, and the personnel safety supervision efficiency is remarkably improved.

The invention discloses an efficient internal and external calibration method based on an infrared radiation calibration model considering integral time and attenuation slices, and belongs to the field of infrared radiation measurement, and the method comprises the steps: determining a calibration black body temperature range corresponding to a gray level linear range under each attenuation slice and integral time gear and a gear needing to be corrected for external calibration; determining a calibration temperature point; then efficient and rapid external calibration of the gear needing to be corrected and efficient and rapid internal calibration of the same temperature section as the external calibration are completed, and internal and external calibration correction coefficients are determined; efficient and rapid internal calibration of the whole temperature section of the gear needing to be corrected is completed, and the internal and external calibration correction coefficients act on the efficient and rapid internal calibration mathematical model of the whole temperature section; according to the technical scheme of the invention, internal and external radiation calibration tasks can be efficiently and quickly completed; compared with a traditional internal and external calibration method, the limitation that the system needs to have good linear epitaxy in the attenuation slice dimension and the integral time dimension is overcome, and the calibration efficiency is improved by several times.

1. The name of the design product: radiation measuring device. 2. The use of the design product: the design product is used for monitoring the radiation dose field of the environment radiation and analyzing the radionuclide deposition characteristics. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

An x-ray-based reservoir evaluation tool for measurement variations in formation density anticipated at the water-oil interface of a reservoir is provided, the tool including at least: an internal length comprising a sonde section, wherein said sonde section further comprises an x-ray source; radiation measuring detectors; sonde-dependent electronics; and a plurality of tool logic electronics and PSUs. A method of using an x-ray based reservoir evaluation tool for measuring variations in formation density anticipated at the water-oil interface of a reservoir is also provided, the method including at least the following steps: using x-rays to illuminate the formation surrounding the cased borehole; uses detectors to directly measure the density of the formation; using detectors to directly measure the effects on the measurement from tool stand-off or production liner attenuation; and employing techniques for compensating for the production liner and liner-annular region when computing the saturated formation density within the production interval.

According to one aspect of the present invention, a radiation measurement system is provided, comprising: an irradiation unit, a target setting unit, a detection unit, and a candidate setting unit. The irradiation unit is configured to irradiate a target with radiation. The target setting unit is configured to place the target within the irradiation range of the radiation. The detection unit is configured to detect radiation after passing through the target. The candidate setting unit is configured to set a candidate of the target and includes a shaft, a first support, and a second support. The shaft extends axially and is configured to rotate about a rotation axis along the axial direction. The first support is configured to rotate with the shaft and includes a plurality of first support regions, each supporting a candidate of the target and arranged along the outer periphery of the first support. The second support is configured to rotate with the shaft and includes a plurality of second support regions, each supporting a candidate of the target and arranged along the outer periphery of the shaft. The first support and the second support are arranged at positions spaced apart from each other in the axial direction.

To support a preparation of a plan of a detector arrangement that can highly accurately measure radiation of waste, and enables a series of work of installation, measurement and removal in a short time.SOLUTION: A measurement plan support system comprises: a shape mesh generation unit that generates a three-dimensional shape mesh model of waste; a mesh development unit that develops a shape mesh model to a two-dimensional plane mesh development diagram; a local contamination mode database that has a plurality of local contamination modes two-dimensionally expressing an aspect of local contamination recorded; a local contamination mode assignment unit that assigns the local contamination mode acquired from the local contamination mode database to an arbitrary mesh of the plane mesh development diagram; a three-dimensional dose rate calculation unit that restores the plane mesh development diagram having the local contamination mode assigned to the three-dimensional shape mesh model, and calculates a three-dimensional dose rate of radiation from the local contamination on the shape mesh model; and a detector arrangement calculation unit that calculates an arrangement of a radiation detector detecting the radiation from the local contamination.SELECTED DRAWING: Figure 1

The invention discloses perovskite nanoparticle ink for ink-jet printing and application of the perovskite nanoparticle ink, and belongs to the technical field of electronic printing. The solute of the ink is perovskite nano-particles with anisotropic shapes or is formed by mixing the perovskite nano-particles with the isotropic shapes and the perovskite nano-particles with the anisotropic shapes. The solute can be stably dispersed in a solvent, the migration behavior of the solute in the deposition process is effectively controlled based on introduction of shape anisotropic nanoparticles, and the coffee ring effect is remarkably inhibited, so that a uniform, low-roughness and high-quality perovskite thin film is obtained, and the application requirements of high-performance electroluminescent devices can be met; and under the condition that the perovskite nanoparticles with anisotropic shapes and linear polarization are orderly deposited and arranged in the film forming process, the prepared perovskite thin film also has linear polarization, can be used for preparing linear polarization electroluminescent devices, and shows excellent application prospects in the fields of radiation measurement, biological imaging, three-dimensional display and the like.

To provide a radiation measurement system with which it is possible to efficiently measure a plurality of samples.SOLUTION: The radiation measurement system includes an X-ray CT measurement system 3. The X-ray CT measurement system comprises a base 4, an irradiation unit 5, a detection unit 6, a sample stage 72, and a sample changer 7. The base is constructed to be installed on a floor surface. The irradiation unit is constructed to irradiate a measurement object with a radiation ray. The detection unit is constructed to detect a radiation ray having gone through the measurement object. The sample changer is constructed to be capable of accommodating a plurality of candidates for the measurement object Ob that are irradiated with an X-ray, located between the irradiation unit and the detection unit, and constituted to be located on an optical path where the measurement object placed on the sample changer can be irradiated from the irradiation unit.SELECTED DRAWING: Figure 2

The invention belongs to the technical field of laser imaging and stress detection, and particularly relates to a stress non-uniformity characterization method based on photocarrier radiation measurement. According to the method, a material to be measured is excited by modulation laser with photon energy larger than the forbidden bandwidth of the material to generate photocarriers, carrier radiation signals are collected through an off-axis parabolic mirror, an amplitude-frequency and / or phase-frequency curve corresponding to a single point of the material is constructed through frequency scanning, the curve difference is represented through curve integral operation, and corresponding gray-scale values are correspondingly formed. Then photocarrier radiation signals at different positions of the material are detected, gray-scale values at different positions are obtained, a complete gray-scale image is drawn, the stress distribution characteristics of the sample to be detected can be mapped through the gray-scale image, and imaging characterization of the stress distribution non-uniformity of the sample is completed.

This invention relates to the field of image sensing data processing and discloses a method for diagnosing the thermal environment of blue-green spaces in cold-region cities based on multispectral remote sensing. The method includes the following steps: acquiring multispectral remote sensing images, three-dimensional building elevations, and solar apparent shape parameters; calculating the illumination shading coefficient of blue-green space pixels to form a three-dimensional dynamic shadow mask; constructing a microscopic phase transition evolution operator using the sensitivity gradient of radiation intensity in different polarization directions and mid-infrared reflectivity; inputting the mask and operator into the thermal infrared radiation measurement equation to reconstruct the dynamic surface temperature; solving the surface energy balance equation based on the dynamic surface temperature, separating the latent heat storage of phase transition energy, and constructing a latent heat buffer index; and performing a comprehensive diagnosis of the thermal environment health based on this index. This invention effectively overcomes the temperature measurement errors caused by complex shading and phase state interweaving, accurately isolates the latent heat energy of phase transition, and achieves precise positioning and objective quantitative diagnosis of microclimate anomalies in cold-region cities.