23 results about "Atmospheric composition" patented technology

The invention relates to the technical field of environment monitoring and atmospheric component source analysis, in particular to a method and system for quantitatively evaluating greenhouse gas source contribution. The method comprises the following steps: extracting background concentration and calculating abnormal quantity through robust local weighted regression based on station hourly greenhouse gas concentration data; combining the abnormal quantity with meteorological data, calculating a comprehensive event score, performing event layering, and identifying a strong event window; a backward trajectory is calculated for the strong event hours, and normalized spatial weight distribution is generated; according to the distribution, the observation abnormal quantity is segmented into a local contribution part and an external contribution part according to a mass conservation principle; and the source industry influencing the observation concentration can be judged according to the diagnosis ratio of the characteristic species in the sampling data. According to the method, the quantitative and auditing separation of a concentration increment source can be realized under the condition of not depending on a complex model and strong prior, and the precision, the robustness, the interpretability and the cross-site comparability of a traceability result are effectively improved.

The invention discloses a planetary atmospheric trace gas spectrum telemetering and in-situ fusion detection system and method, and belongs to the technical field of deep space exploration. The detection system has a telemetering mode and an in-situ detection mode, and comprises a telescope module, a laser light source module, a heterodyne spectrum telemetering module, an in-situ absorption spectrum module, a gas sampling and enriching module and a signal acquisition, processing and control module. In the on-orbit stage, a heterodyne spectrum telemetering module is adopted, and a laser light source and sunlight signals are subjected to frequency mixing for atmospheric component telemetering; and after the detector enters an atmospheric descending section, the in-situ absorption spectrum module performs in-situ absorption spectrum measurement by utilizing the detection light of the same laser light source. By performing space-time fusion and joint inversion on the data acquired in the two modes, coherent detection from large-range general survey to fixed-point detailed survey is realized, the problems of load separation of telemetering and in-situ detection and difficulty in data fusion are solved, and the detection efficiency, the data consistency and the integration level of the system are greatly improved.

This invention discloses a method and system for intelligent weather image acquisition and recognition, specifically relating to the field of weather image recognition technology. It involves continuous polarization imaging of the sky region while simultaneously acquiring spatial attitude and temporal information; preprocessing the polarization image data and extracting Stokes parameters to obtain standardized sky polarization light field data; then using a theoretical Rayleigh scattering model to analyze the polarization degree distribution pattern at different wavelengths to obtain theoretical sky polarization pattern characteristics; based on the polarization light field data, identifying the spatial distribution of actual clouds, aerosols, and haze in the sky to form actual atmospheric composition distribution characteristics; extracting anomalous polarization regions through difference analysis between theoretical and actual characteristics, and accurately classifying halo polarization anomalies and scattering polarization anomalies based on geometric and spectral characteristics; generating ultralocal weather change early warning signals based on the classification results; thus improving the accuracy and real-time performance of early warnings for ultralocal anomalous weather phenomena.

This invention relates to the fields of atmospheric physics and remote sensing, and particularly to a method and system for obtaining upward atmospheric transmittance in the infrared absorption band. The method includes: directly measuring solar spectral data from the ground; simultaneously measuring atmospheric composition profiles in the directions of the sun and satellite; calculating the downlink measured transmittance based on the measured data; calculating the downlink and uplink theoretical transmittance based on the profiles using a radiative transfer model; comparing the downlink measured and theoretical transmittance to verify errors; calculating a correction coefficient based on the uplink and downlink theoretical transmittance; and using this correction coefficient to correct the downlink measured transmittance to obtain the final uplink atmospheric transmittance. The system includes spectral measurement, profile measurement, and data processing units for implementing the above method. This invention combines the high precision of direct measurement with the physical extrapolation capability of theoretical models, solving the problem of obtaining high-precision uplink atmospheric transmittance and providing a reliable technical solution for satellite remote sensing calibration.

The embodiment of the invention provides an intelligent AR inspection system for atmospheric component observation, relates to the technical field of artificial intelligence, and aims to accurately identify the direct influence of an environmental event on equipment by comprehensively analyzing an environmental event image, pollutant concentration data and correlation indexes in combination with equipment operation parameters so as to improve the inspection efficiency. Non-abnormal states caused by external environment disturbance and true anomalies caused by equipment faults are effectively distinguished, and corresponding emergency response strategies and maintenance reports can be automatically generated according to different risk levels, so that the accuracy and the intelligent level of an environment monitoring system are greatly improved.

The invention belongs to the related technical field of climate and environmental science, and particularly relates to a method for determining the influence of a climate geographic grid on global atmospheric component variables, which comprises the following steps of: constructing global climate mean time sequence data; performing signal decomposition on the global climate mean time sequence data and the global variable time sequence data to obtain a first target sequence and a second target sequence; determining the optimal time delay between the two sequences, aligning the two sequences and carrying out linear fitting, and taking a fitting quadratic term as a fitting sequence of a second target sequence; respectively calculating a first variance of an original second target sequence and a second variance of the fitting sequence; sequentially neglecting each climate grid, updating the fitting sequence and the second variance after each grid is neglected, and taking the permillage of the difference value of the two second variances before and after updating and the first variance as the coupling expressive force of the neglected grid to the second target sequence.

The application discloses an extraterrestrial body surface environment comprehensive simulation device, and relates to the field of extraterrestrial body surface environment simulation.The device comprises a vacuum cavity, which can simulate the vacuum environment or the atmospheric composition of the extraterrestrial body surface after being vacuumized or filled with a specific atmosphere.The vacuum cavity is provided with an extension interface, an observation window and a reserved interface on the side wall or other preferred positions, and a pulsed laser deposition system and other equipment are incident from the reserved interface or the observation window to simulate the space weathering process represented by micro-meteorite impact; a temperature control system is used to adjust the temperature of a loading platform to a temperature value required for simulating the high-temperature and low-temperature environment of the extraterrestrial body surface; the observation window is used to observe the test sample in the simulation process, and the reserved interface is connected with a characterization instrument to obtain the change of the related characteristics of the test sample in situ.The application can simulate and truly reflect the extraterrestrial body surface environment and the space weathering modification effect, and can be used for in-situ characterization, thereby providing reliable ground verification and prediction for the difficulties and challenges that may be faced by a deep space exploration task.

This invention relates to the field of environmental monitoring and atmospheric composition source apportionment technology, specifically a method and system for quantitatively assessing the contribution of greenhouse gas sources. The method includes: extracting background concentrations and calculating anomalies based on hourly greenhouse gas concentration data from various stations using robust local weighted regression; combining anomalies with meteorological data to calculate a comprehensive event score and perform event stratification to identify strong event windows; calculating backward trajectories for strong event hours to generate a normalized spatial weight distribution; dividing observed anomalies into local and external contribution components according to the mass conservation principle based on this distribution; and further determining the source industries affecting observed concentrations based on the diagnostic ratios of characteristic species in the sampled data. This invention enables quantitative and auditable separation of the sources of concentration increments without relying on complex models and strong priors, effectively improving the accuracy, robustness, interpretability, and cross-site comparability of source tracing results.

The utility model discloses an atmospheric pollution control, prevention and detection device capable of performing temporary treatment, and relates to the technical field of atmospheric prevention and detection equipment. The atmospheric pollution control, prevention and detection device capable of being temporarily treated comprises a mobile vehicle, and further comprises an air sampling assembly arranged right above the mobile vehicle and used for extracting nearby polluted atmosphere; the monitoring assembly is arranged at the bottom end of the air sampling assembly, and the monitoring assembly is used for monitoring the atmosphere pumped by the air sampling assembly; the air processing assembly is arranged on the surface of the bottom of the monitoring assembly, the output end of the monitoring assembly is connected with the output end of the air processing assembly in a conducting mode, the air component can be detected, the atmosphere can be temporarily processed, and therefore the influence of the polluted atmosphere on the environment can be reduced.

The utility model provides an atmospheric composition monitoring square cabin suitable for ship underway. The atmospheric composition monitoring shelter comprises an air inlet assembly, atmospheric composition monitoring equipment and an exhaust assembly. Wherein the air inlet assembly extends upwards from the interior of the cabin body to the exterior of the top wall of the cabin body and is used for sucking external air into the cabin body, and the air inlet assembly is used for detecting and analyzing the air by the atmospheric composition monitoring equipment. After the atmospheric composition monitoring equipment detects sucked gas, tail gas is exhausted out of the cabin body from the exhaust assembly. According to the design, ordered flowing of gas is guaranteed, and stable operation of atmospheric composition monitoring equipment is facilitated. And the air inlet assembly and the exhaust assembly are arranged on the top wall and the bottom wall of the cabin body respectively, so that the space structure of the cabin body is fully utilized, and the space, used for installing the atmosphere monitoring system, in the cabin body is planned and utilized more reasonably. By means of the layout design, all components of the atmospheric monitoring system can be efficiently installed and operated in the limited cabin space.

This invention discloses an atmospheric composition monitoring device, comprising a housing, a fan mounted on the top of the housing, an air outlet of the fan fixedly connected to the upper end of an air outlet pipe, a lower end of the air outlet pipe fixedly connected to the upper end of a first air guide pipe located inside a water inlet pipe, the upper end of the water inlet pipe fixedly connected to the top of the housing, the lower end of the water inlet pipe fixedly connected to the left end of a bend pipe, and the right end of the bend pipe fixedly connected to the upper end of a drain pipe. This invention can effectively prevent rainwater from interfering with sensor readings and can effectively prevent dust in the air from affecting the sensor.

The invention discloses an intelligent weather image acquisition and weather image recognition method and system, and particularly relates to the technical field of weather image recognition. The method comprises the following steps: performing continuous polarization imaging on a sky area, and synchronously acquiring space attitude and time information; carrying out preprocessing and Stokes parameter extraction on the polarized image data to obtain standardized sky polarized light field data; analyzing polarization degree distribution modes under different wavelengths by using a theoretical Rayleigh scattering model to obtain theoretical sky polarization mode characteristics; based on the polarized light field data, spatial distribution of actual clouds, aerosols and haze in the sky is identified, and actual atmospheric component distribution characteristics are formed; an abnormal polarization region is extracted through difference analysis of theoretical and actual characteristics, and halation polarization abnormity and scattering polarization abnormity are accurately classified based on geometric and spectral characteristics; generating a super local weather change early warning signal according to the classification result; the early warning accuracy and real-time performance of the super-local abnormal weather phenomenon are improved.

The invention relates to the technical field of atmospheric environment analysis and monitoring, and discloses an atmospheric environment monitoring device with a cleaning function, the atmospheric environment monitoring device with the cleaning function comprises a triangular telescopic frame, a meteorological monitor and a thermometer shelter cover, the meteorological monitor is arranged above the triangular telescopic frame, and the thermometer shelter cover is detachably mounted at the top of the meteorological monitor; a layered detection assembly is arranged at the top of the triangular telescopic frame and comprises a placement plate, the placement plate is fixedly connected to the top of the triangular telescopic frame, and electric telescopic rods are symmetrically and fixedly arranged at the top of the placement plate; through the arrangement of the one-way gas inlet valve, the gas storage cylinder and the rotating pipe, gas is fully mixed in the gas storage cylinder, the local concentration difference of instantaneous gas flow is eliminated, the sampled gas is closer to the average atmospheric composition in the time period, the sampling representativeness is improved, the gas spirally flows into the detection cavity pipe, and the detection accuracy is improved. The spiral flow mode prolongs the retention time of the gas in the detection cavity tube, and enables the gas to be more uniformly contacted with the detection element.

The application provides a satellite-ground communication attenuation calculation method, comprising: calculating the attenuation values of different meteorological factors on satellite-ground communication according to pre-acquired meteorological information to obtain attenuation component information. The meteorological information comprises meteorological observation information acquired at at least two adjacent time steps. The attenuation component information is input into a preset attenuation value calculation model, so that the attenuation value calculation model outputs corresponding total attenuation information. The total attenuation information calculated at the at least two adjacent time steps is input into a preset coupling network model together with the meteorological information, so that the coupling network model outputs total attenuation values. Thus, the problem that the conventional satellite-ground communication attenuation calculation method cannot handle the superposition of multiple atmospheric components is solved.

This invention discloses an on-orbit method and system for determining the spectral response function of a hyperspectral remote sensor, based on the solar reflection band. The method includes: step S1, acquiring multiple sets of input light sources to obtain a system of multiple linear regression equations; and step S2, calculating the system of multiple linear regression equations using the least squares method to obtain the pixel-by-pixel spectral response function of the remote sensor. This on-orbit method for determining the spectral response function of a hyperspectral remote sensor solves the problem of whether or not on-orbit observation of the spectral response function of a hyperspectral remote sensor is possible. It also shortens the observation cycle from months or even years to minutes, thereby improving the accuracy of satellite-based monitoring of global greenhouse gases, environmental pollutants, aerosols, and other atmospheric components, contributing to the high-quality development of national undertakings such as climate research, environmental protection, and low-carbon emission reduction.

The application provides a near-space full-altitude environment multi-element laser radar detection platform, constructs a trinity structure of "common basic support + atmospheric composition detection + meteorological multi-element detection", solves a multi-device data fusion problem through a unified optical reference and a time synchronization mechanism, improves the spatiotemporal consistency of detection data, realizes high-precision collaborative detection of "full altitude and multi-element", breaks through the capability limitation of a single platform and a dispersed networking scheme, constructs an efficient multi-source heterogeneous data processing architecture, meets the real-time storage, analysis and visualization needs of massive data, improves the reliability and expandability of the equipment, realizes all-weather unattended operation, and supports flexible expansion of subsequent functional modules.

The invention discloses a TROPOMI on-orbit calibration and performance tracking method based on background value statistics, which comprises the following steps: constructing a pure ocean background value data set, eliminating interference pixels by utilizing multiple physical thresholds such as cloud screening, solar flare screening and absorptive aerosol screening, and reducing errors in combination with geometric constraint conditions to obtain a TROPOMI background value; an empirical model of background values and observation geometry is established, angle dependence of the background values is eliminated through geometric normalization processing, then a long-term background value sequence is established, and a time sequence decomposition technology (STL) is adopted to separate seasonal fluctuation of a time sequence and a long-term attenuation trend of an instrument; finally, dynamic prediction and correction of a full-view-field background value of the sensor can be realized based on the constructed integrated space-time model, and a time consistency correction coefficient is calculated so as to eliminate long-term deviation introduced by instrument performance attenuation. According to the invention, the long-term consistency and reliability of atmospheric component products such as absorptive aerosol index and the like are obviously improved.

A kind of laser heterodyne atmospheric composition concentration detection device based on optoelectronic chip, including collimating module, sun tracker, optoelectronic chip module, signal processing module, data acquisition and analysis module.The present application adopts optoelectronic chip to carry optical path and constructs laser heterodyne atmospheric composition concentration detection device, adopts optoelectronic chip to carry system optical path, increases the stability and anti-interference ability of system, so that system can adapt to more use environment;At the same time, optoelectronic chip is easy to integrate, different local oscillator light source can be used to realize the simultaneous monitoring of various atmospheric composition column concentration;Using optoelectronic chip module can greatly reduce the volume of system, realize the miniaturization of system, has wide application prospect in the field of climate research, environmental monitoring and atmospheric chemistry research, and explores for subsequent further popularization and application.

The invention provides a satellite-ground communication attenuation calculation method, which comprises the following steps of: calculating attenuation values generated by different meteorological factors on satellite-ground communication according to pre-acquired meteorological information to obtain attenuation component information; wherein the meteorological information comprises meteorological observation information collected in at least two adjacent time steps. And inputting the attenuation component information into a preset attenuation value calculation model, so that the attenuation value calculation model outputs corresponding total attenuation information. And inputting the total attenuation information calculated by the at least two adjacent time steps and the meteorological information into a preset coupling network model, so that the coupling network model outputs a total attenuation value. Therefore, the problem that a traditional satellite-ground communication attenuation calculation method cannot process the superposition condition of multiple atmospheric components is solved.

A kind of ionospheric absorption effect evaluation method based on multi-source measured data driving, comprising the following steps: step 1, obtaining and preprocessing of altimeter observation data, obtaining optimal sunspot number using altimeter data;Step 2, calculating the electron density on the link using three-dimensional time-varying ionospheric empirical model;Step 3, obtaining and preprocessing of GRACE satellite observation data, obtaining optimal solar radio flux and geomagnetic index using GRACE satellite data;Step 4, reconstructing atmospheric density and temperature at different altitudes on the link using global atmospheric empirical model;Step 5, calculating electron and ion, neutral particle collision frequency;Step 6, calculating ionospheric absorption attenuation.The method disclosed in the application optimizes empirical model using data driving to reconstruct electron density, atmospheric composition temperature and density on the communication link, and finally realizes modeling of ionospheric absorption effect on the communication link, which can provide model support for communication effect evaluation of ultra-short wave and above frequency band radio information system.

The invention relates to the technical field of gas monitoring, in particular to operation monitoring equipment for an atmospheric composition monitoring station, which comprises a base and a monitoring component, the monitoring component is fixedly mounted at the upper end of the base, an exhaust component is arranged on one side of the monitoring component, a control panel is arranged in the monitoring component, and positioning bolts are arranged on two sides of the control panel. A display screen, control keys and a fault lamp are arranged on the control panel, an alarm is arranged on one side of the fault lamp, a processing mechanism is arranged at the upper end of the monitoring assembly, a support is arranged in the processing mechanism, a processing tank is arranged on the support, an air inlet valve is arranged on one side of the processing tank, and a tank cover is arranged at the upper end of the processing tank. A treatment assembly is arranged in the treatment tank, a gas conveying pipe is arranged at the bottom end of the treatment tank, a sealing ring is arranged on the gas conveying pipe, gas can be filtered through the treatment mechanism, the gas is conveyed into the treatment tank through a gas inlet valve in the mechanism, and then a servo motor can be started to drive a transmission rod to rotate.

The invention provides an atmospheric component observation and inspection system and method based on artificial intelligence, and is applied to the technical field of artificial intelligence, and the system comprises augmented reality glasses which comprise a sensor module and a data processing module and are used for collecting image data of an observation station and audio data of inspection personnel in real time, preprocessing the image data and the audio data to obtain collected data; the abnormity judgment module is used for analyzing whether the running state of the observation station is abnormal or not according to the preprocessed collected data; the exception handling module is used for handling the condition that the operation state output by the exception judgment module is abnormal; and the self-adaptive scheduling module is used for determining corresponding parameter weights according to the output conditions of the three, and scheduling the execution sequence of the three according to the parameter weights. According to the invention, timely guidance and assistance are provided for maintenance and overhaul of inspection personnel, the efficiency is improved, and a good foundation is laid for further standardizing the atmospheric component observation inspection work and improving the observation quality.

The invention provides a method for predicting parachute opening load of a supersonic parachute under different atmosphere composition conditions, which comprises the following steps of: firstly, determining parachute opening conditions and atmospheric environment conditions when the parachute works, correlating atmospheric molar mass through gas constants, and dynamically adjusting flow field parameters under different atmosphere compositions; therefore, correction calculation of parachute shock wave rear flow field parameters is carried out, and finally inflation constant dynamic adjustment is introduced according to different atmospheric components, so that a supersonic speed parachute inflation expansion resistance area model suitable for different atmospheric components and incoming flow conditions is established. And a foundation is laid for high-precision prediction of the load and the trajectory of the supersonic parachute in a trans-atmospheric environment. The method belongs to the technical field of aerospace pneumatic deceleration, and realizes high-precision prediction of the supersonic parachute load in different atmospheric environments.