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35 results about "Sand storm" patented technology

Mine underground debris flow risk quantitative analysis and evaluation method

The invention discloses a mine underground debris flow risk quantitative analysis and evaluation method, and belongs to the technical field of metal mine disaster prevention and control. Comprising the following steps: calculating 24-hour rainfall under different rainstorm occurrence frequencies; determining a sand production critical hydraulic gradient and a sand inrush critical hydraulic gradient, and calculating a sand production water level height and a sand inrush water level height; the rainstorm infiltration amount of the upper boundary of the quaternary gravel bed under the most unfavorable working condition is calculated, and the sand production rainstorm leakage amount and the sand inrush rainstorm leakage amount of the lower boundary of the quaternary gravel bed are calculated; the leakage amount and the imbibition amount are compared, the sand production or sand inrush risk is preliminarily judged, the time needed for lifting the water level to the sand production water level height or the sand inrush water level height is calculated, and finally the sand production or sand inrush risk is judged; and analyzing the sand production and sand inrush risks under the condition of short-time heavy rainfall by adopting the same method. According to the method, underground debris flow occurrence risks under different rainfall intensities are quantitatively analyzed, a disaster triggering mechanism can be determined, critical criteria for formation of mine underground debris flow are given, and a prevention and treatment decision basis is provided.
Owner:NORTHEASTERN UNIV CHINA

Real-time monitoring method and system for sand flow under regional environment characteristics

The invention relates to the technical field of sandstorm disaster monitoring, and relates to a sandstorm flow real-time monitoring method and system under regional environment characteristics. According to the method, the soil moisture content, the soil compactness and the vegetation coverage are collected, the initial dusting wind speed threshold value is determined in combination with the real-time wind direction and the historical log, the dusting wind speed threshold value is dynamically corrected through the earth surface wind resistance deviation coefficient, and the dusting wind speed threshold value is compared with the real-time wind speed collected in the to-be-detected area to judge whether the wind sand flowing risk exists or not. When the wind sand flowing risk exists, the collected surface sand layer height change data and the real-time wind speed are subjected to coupling analysis to determine the real-time wind sand index, so that prevention and control personnel visually master the wind sand damage degree, and meanwhile, the current wind sand severity level and the wind sand flowing change trend are determined according to the real-time wind sand index; the prevention and control work is changed from passive disaster response to active prevention in advance, time is won for reinforcing protection facilities in advance and storing prevention and control materials, and the effect of effectively reducing sand storm disaster loss is achieved.
Owner:YULIN UNIV

Wind generating set risk early warning method, device and equipment under sand storm weather and storage medium

The invention discloses a wind generating set risk early warning method, device and equipment in sand storm weather and a storage medium, and relates to the technical field of wind power generation, and the wind generating set risk early warning method in sand storm weather at least comprises the following steps: collecting multi-source meteorological data in a target area, judging whether a preset sand storm early warning condition is triggered or not according to the multi-source meteorological data; in response to the condition of triggering sand storm early warning, simulating the motion condition of sand and dust according to the multi-source meteorological data and the digital elevation model of the target area, and predicting to obtain sand and dust settlement distribution information in the target area; determining at least one to-be-protected generator set according to a preset wind generating set distribution diagram and the sand and dust sedimentation distribution information; and executing a protection control strategy on the to-be-protected generator set according to the multi-source meteorological data and the sand and dust settlement distribution information. The protection effect on the wind generating set in the sand storm weather is improved, and power generation output is guaranteed.
Owner:HUANENG JILIN CLEAN ENERGY POWER GENERATION CO LTD TONGYU BRANCH +2

Dustproof box transformer substation shell

The utility model relates to the technical field of box-type transformer substations, in particular to a dustproof box-type transformer substation shell which comprises a shell body, ventilation grooves are formed in the two sides of the shell body, a plurality of rotating shafts are rotationally installed in the ventilation grooves, one end of each rotating shaft and one end of a louver board are fixedly installed, a vertical groove is formed in the shell body, and the louver board is fixedly installed in the vertical groove. And the other end of the ventilation groove penetrates through the vertical groove and is provided with a worm gear, a worm meshed with the worm gear is rotationally installed in the vertical groove, and a protection assembly for protecting the worm gear and the worm is arranged in the vertical groove. According to the utility model, the worm is rotated to enable the worm gear to drive the rotating shafts to rotate, so that the louver boards can be driven to rotate, in case of heavy rain or sand storm, the louver boards rotate downwards to relatively seal the ventilation slots, so that rainwater or sand dust entering the box transformer substation can be reduced, and the plurality of rotating shafts rotate simultaneously and the louver boards rotate synchronously through the meshing of the worm and the worm gear, so that the box transformer substation is prevented from being damaged. And one-by-one adjustment is not needed.
Owner:ANHUI ATLANK ELECTRIC POWER TECHNOLOGY CO LTD

Sand storm prediction method based on multi-source data fusion and static sand source prior

A sand storm prediction method based on multi-source data fusion and static sand source prior belongs to the technical field of sand storm prediction, and comprises the following steps: modeling a sand storm prediction task into a multi-source driven sequence generation problem, and deducing by using historical satellite cloud pictures, grouped meteorological reanalysis data and static sand source prior; through a double-branch architecture, satellite space-time features are extracted by using a three-dimensional U-Net, meteorological physical features are extracted by using a SimVP-Mama network, static prior is fused, multi-source feature alignment and fusion are realized in a bottleneck layer, and space-time evolution information of a future sand storm is output through a decoder. In addition, a level mapping loss function is introduced to optimize intensity level prediction. According to the invention, deep fusion of a physical mechanism and observation data is realized, and the accuracy of sand storm prediction is effectively improved.
Owner:ZHEJIANG UNIV OF TECH

Electric vehicle capable of being continuously charged using wind energy

Disclosed is an electric vehicle capable of being continuously charged using wind energy, comprising: an air inflow part (110) formed to allow wind to flow in during travel; a turbine (120) formed at the rear end of the air inflow part (110) and rotated by wind energy; a power generation unit (130) for generating electric power; a power source unit (140); a sensor unit (160) formed on the front surface of the electric vehicle (10) and comprising a wind velocity sensor (161) for measuring wind velocity during travel, a rainfall sensor (162) for measuring rainfall during a rainy season, a snowfall sensor (163) for measuring snowfall during snowfall, and a sandstorm sensor (164) for measuring a sandstorm; and a controller (150) electrically connecting a battery (141) and an electric motor (11) by means of an electrical system and controlling the charging of the battery (141) by the power generation unit (130), wherein the air inflow part (110) comprises an air inflow path (111) recessed at each side or the center of the lower front part of the electric vehicle (10) and an opening / closing hole (112) formed at the air inflow path (111), opening / closing same, and having an aperture structure in which multiple air-through holes are arranged, and the controller (150) analyzes each value measured by the wind velocity sensor (161), the rainfall sensor (162), the snowfall sensor (163), and the sandstorm sensor (164), so as to operate the opening / closing hole (112) and thereby regulate the airflow that flows into the air inflow path (111), and thus generate electric power using wind energy regardless of the driving environment and weather conditions, which enables continuous charging.
Owner:KIM YONG HO

A real-time dynamic collection monitoring device for concentration level flux of a butterfly-shaped sandstorm

The present application relates to sand dust collection monitoring device field, specifically to a butterfly type sandstorm concentration level flux real-time dynamic collection monitoring device, including fixed protection cylinder, centrifugal sand dust inlet, rotating sand dust separation cylinder, wind sand separation pipe, wind sand separation exhaust pipe, exhaust pipe, high mesh exhaust dust screen, stainless steel conical pipe, round pipe shaft, upper rotating bearing, wind vane indicating screw, adjustable balance hammer, butterfly type wind vane rudder, fixed wind vane screw, lower fixed bearing, upper and lower connection tower buckle, can take the weighing bottle, the sand dust collection cup is placed on high-precision weighing sensor in the protection weighing bottle cylinder, real-time weighing through the weighing transmitter, data transmission to remote display screen for storage, through data remote antenna, send to laboratory terminal real-time observation sand dust concentration change, thereby realize long-term fixed point in unattended or sandstorm specific environment obtains the collection of dust particle concentration in different height different direction unit time unit area.
Owner:NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS

Wind turbine generator converter temperature dynamic control method and system based on sandstorm climate

The invention discloses a wind turbine generator converter temperature dynamic control method and system based on the sandstorm climate, and relates to the technical field of wind power plant control, and the technical scheme is characterized in that a wind speed time sequence model capable of representing the sandstorm climate characteristics is established; establishing a correlation model of the converter temperature and the output power of the wind turbine generator; and combining the wind speed time sequence model and the correlation model of the converter temperature and the output power of the wind turbine generator, establishing an objective function at the same time, performing real-time optimization solution to obtain an optimal active power reference value and an optimal reactive power reference value, and realizing accurate regulation and control on the wind turbine generator according to the optimal active power reference value and the optimal reactive power reference value. According to the method, the thermal safety margin and the operation reliability of the wind turbine generator under the extreme working condition of the sand storm can be remarkably improved, the adaptability of a wind power plant to atrocious weathers such as the sand storm is enhanced, and an efficient landing control strategy is provided for reducing the high-temperature fault rate of a converter and prolonging the service life of power electronic devices.
Owner:ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER +1

An event camera based dust storm anomaly detection and intensity estimation method

This invention belongs to the field of computer vision and intelligent environmental perception technology, specifically relating to a method for anomaly detection and intensity estimation of sandstorms based on event cameras. It includes constructing and training an estimation model based on a multi-stream regression framework, and using the trained estimation model to predict sandstorm concentration. The estimation model includes an encoding module, a temporal distillation module, a cross-channel interaction module, and a regression prediction module. The encoding module includes three parallel color spectral encoders for red, blue, and green. This invention effectively overcomes the technical limitations of traditional air quality prediction methods based on RGB images, such as insufficient temporal resolution, limited dynamic information expression capabilities, and insufficient utilization of information from a single data source. It achieves high-precision estimation of air particulate matter concentration and maintains good robustness and adaptability even under complex environmental conditions.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Method for calculating the stress exerted by dust particles on a power transmission line during a sandstorm

A method for calculating stress exerted on a power transmission line by dust particles during a sandstorm, comprising the following steps: S1: obtaining a probability alpha of collision between dust particles and the power transmission line during a sandstorm based on a volume occupied by the power transmission line in space; S2: simulating a process of collision between a single dust particle and the power transmission line during a sandstorm based on an elastic collision model and a particle motion equation; S3: obtaining an acting force exerted on the power transmission line by the single dust particle from the simulation of the collision between the single dust particle and the power transmission line; and S4: obtaining a stress exerted on the power transmission line by the dust particles based on the acting force exerted on the power transmission line by the single dust particle, a dust particle mass concentration c, and the probability alpha of collision between the dust particles and the power transmission line.
Owner:STATE GRID NINGXIA ELECTRIC POWER CO +1

Method for improving sand and dust numerical forecasting through assimilation-aerosol-cloud-radiation

The invention discloses a method for improving sand and dust numerical forecasting through assimilation-aerosol-cloud-radiation, and the method comprises the steps: building a sand and dust storm forecasting mode, calculating sand and dust optical parameters based on a spherical particle extinction theory, and achieving the bidirectional feedback of sand and dust to weather; a sand and dust aerosol-cloud interaction ice nucleus nucleation mechanism is given, a sand and dust CCN type aerosol homogeneous freezing process is realized, a radiation variable temperature rate is calculated and fed back to a weather mode power process, and bidirectional feedback of weather-driven sand and dust and influence of sand and dust on weather is formed; constructing an ensemble forecasting module, performing time and space related disturbance on a meteorological initial field, a boundary condition and an aerosol initial concentration, and performing ensemble forecasting after a mode is input; and establishing an ensemble assimilation analysis correction module, constructing a background error covariance matrix by utilizing mode ensemble forecasting, disturbing observation at an analysis moment, and assimilating and correcting the initial concentration of the mode aerosol based on a localized ensemble Kalman filtering method to obtain a forecasting result.
Owner:CHINESE ACAD OF METEOROLOGICAL SCI

A fixed base for hydraulic engineering surveying instruments

The utility model relates to fixed base technology field, concretely relates to a fixed base for water conservancy engineering surveying and mapping instrument, including surveying and mapping instrument main part, still including support seat, the lower end annular array of support seat is fixed with a plurality of support legs, the support seat sliding connection has the lifting ring, and the lifting ring is connected with the support seat sliding penetration, the upper end fixed connection of lifting ring has the article board for supporting surveying and mapping instrument main part. The utility model support seat upper end sets up the protective housing, and its inboard is connected the protection cover through telescopic curved link and curved spring, when operating, instrument rises to the upper of protective housing, and the protection cover is jacked and opens automatically, satisfies the surveying and mapping demand of different height, after operating, instrument drops to the shell, does not need manual dismounting or additional covering, and the operation is convenient and protects in time, forms the totally enclosed protective space, effectively blocks the rain and snow, sand, the sun exposure such as natural erosion, avoids the aging damage of instrument spare part because of long -term exposure, prolongs the service life of equipment.
Owner:XINJIANG XUHONGYE CONSTRUCTION ENGINEERING CO LTD

Method for generating operation scene of electric power system in extreme weather of sand storm

The invention discloses a power system operation scene generation method under sandstorm extreme weather, which comprises the following steps: on the basis of reliable sandstorm historical meteorological data and geographic information in a region, fitting probability distribution of wind speed and illumination intensity by adopting generalized extreme value distribution and Beta distribution; the method comprises the following steps: extracting multiple groups of environmental parameters through Monte Carlo sampling, establishing a photovoltaic and fan output model in a sand storm environment by considering the influence of sand and dust particles, calculating a new energy output operation scene and a scene probability, and obtaining a representative operation scene and a probability attribute thereof by using a weighted K-means clustering algorithm; establishing a system fault probability model of line pollution flashover tripping in sand storm weather, and obtaining a fault scene set of the line in different operation states; according to the method, the influence of sand storm extreme weather on the operation of the power system is accurately described based on environmental parameter scene modeling, the generated scene set can more truly reflect the uncertainty and risk under the extreme event, and a good data basis is provided for prevention and control, risk assessment and toughness optimization of the power system.
Owner:NORTHWEST BRANCH OF STATE GRID POWER GRID CO

A sandstorm prediction method based on multi-source data fusion and conditional diffusion generation

A sandstorm prediction method based on multi-source data fusion and conditional diffusion generation defines the sandstorm prediction task as a kind of spatio-temporal sequence prediction problem, the input is the meteorological data at multiple times, and the output is the sandstorm change information at multiple times; the sandstorm data is added with noise according to a noise addition formula to obtain sandstorm data with noise; a multi-source data noise prediction network is trained jointly through satellite cloud images, meteorological reanalysis data, sandstorm data at historical times and a time step t; a full Gaussian noise map, the current time step t x , and satellite cloud images, meteorological reanalysis data and sandstorm data at historical times are input into the multi-source data noise prediction network to predict the noise of the current noise map, the noise at the current time is removed through a denoising formula to obtain sandstorm data with noise at t x‑1 ; this operation is repeated until the t0 time to obtain a prediction result. The present application can accurately predict sandstorms.
Owner:ZHEJIANG UNIV OF TECH

Pile plate structure sand passing type roadbed in windy and sandy area

The utility model discloses a pile plate structure sand passing type roadbed in a windy and sandy area. Sand storms frequently occur in northwest desertification regions of China, and railway operation safety and ecological environment construction along the line are seriously harmed. The subgrade structure comprises a sand conveying channel, wherein the sand conveying channel is arranged at the middle position of a subgrade body; a concrete surface layer is laid at the bottom of the sand conveying channel, and a reinforced concrete plate is arranged on the top. Reinforced concrete piles are arranged in the roadbed body, the bottoms of the reinforced concrete piles penetrate through the roadbed body to be inserted into the underground bearing stratum, and the tops of the reinforced concrete piles are fixedly connected with the reinforced concrete slab. According to the utility model, sand can smoothly pass through the sand conveying channel when crossing the roadbed slope, so that sand accumulation is avoided, and the maintenance is easy.
Owner:CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP

Adjustable photovoltaic support

The invention belongs to the field of photovoltaic supports, and particularly relates to an adjustable photovoltaic support which comprises a furling frame, the furling frame is composed of a plurality of containing plates capable of being turned over and folded, a plurality of mounting grooves used for fixing photovoltaic panels are formed in the top faces of the containing plates, a floating rod is arranged in the middle of the furling frame, and the floating rod is arranged in the middle of the furling frame. The gravity center of the floating rod is located at the bottom of the floating rod, and the effect of comprehensively and safely carrying a photovoltaic device is achieved. The photovoltaic power generation support is simple in overall structure and low in early-stage investment cost, can carry the photovoltaic panel to sink into water together and avoid impact of various sand storms and gravels when severe weather comes, and can normally emerge from the water surface to continue photovoltaic power generation work after the severe weather, so that the safety and the service life of the photovoltaic panel are guaranteed; meanwhile, the support is convenient to install and can be used only by being directly put into water, a plurality of supports are generally arranged side by side and connected with one another, large-area photovoltaic engineering is formed, and the utilization rate of the water surface is improved.
Owner:HEBEI DONGDA ELECTRIC CO LTD

An experimental device for simulating real environment of sandstorm and use method thereof

This invention relates to the field of sandstorm testing technology and discloses an experimental device and method for simulating a real sandstorm environment. The device includes a test chamber with a test compartment on the front and a drive compartment on the bottom side. A door is hinged to the front of the test compartment. This experimental device and method for simulating a real sandstorm environment, through the use of a connecting pipe, a first valve disc, a second valve disc, a valve hole, a cylinder, and a through rod, allows the devices connected to the air inlet pipe to work together to adjust the air supply volume, making the air supply volume easy to adjust and saving costs. By setting up a sandstorm compartment, a circulation pipe, an exhaust port, and a connecting port to form a circulation system, the internal air supply of the test chamber can be circulated, avoiding pollution caused by direct discharge of sand and dust, thus improving the environmental performance of the device. The inclusion of an observation glass and LED lighting makes it easy to observe the interior of the test chamber, improving the practicality of the device.
Owner:YANCHENG YOUKU ENVIRONMENTAL TESTING EQUIP CO LTD

Sand and dust collection device

This invention discloses a dust collection device, including a collection box with an air duct opening at the top and a lower ventilation pipe at the top, the bottom of which connects to the air duct opening. An upper ventilation pipe is detachably connected to the top of the lower ventilation pipe, and a bearing is mounted on the top of the upper ventilation pipe, on which a collection head is installed. Both the upper and lower ventilation pipes are equipped with fixing cables. A settling chamber is located inside the collection box, with the air duct opening corresponding to the settling chamber. A dust collection mechanism is also located inside the collection box, corresponding to the settling chamber. This invention can collect dust data above PM2.5, filling the gap in existing sand collection equipment that can collect sand but not dust during dust storms. It can also compensate for the shortcomings of TSP (Total Sedimentary Particle Storage) in terms of low dust collection volume and short observation time, thus improving dust collection efficiency.
Owner:XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI

Outdoor LED energy-saving illuminating lamp

The invention belongs to the technical field of energy-saving lighting, and discloses an outdoor LED energy-saving lighting lamp which comprises a lamp holder, a linear control part is arranged in the lamp holder and provided with a moving part with the height capable of being adjusted, a mounting plate is arranged on the moving part in a swinging mode, and the mounting plate is used for containing an LED lighting part; through swinging of the mounting plate on the moving part, the irradiation angle of the LED lighting part can be adjusted, and precise projection and concentrated lighting of light rays are achieved. Meanwhile, the LED lighting component can be adjusted to be in a vertical state, so that the whole LED lighting component is retracted into the lamp holder; the function not only can thoroughly eliminate light pollution in a non-use period, but also can provide active protection in severe weather such as typhoon, hail, sand storm and the like, so that the service life of an optical device is prolonged; meanwhile, theft and man-made damage are effectively prevented; in addition, the LED lighting component integrally retracts into the inner cavity of the lamp holder, and the requirement that a sliding groove is formed in the lamp holder in a traditional lifting structure is avoided.
Owner:GUANGDONG HONGYU LIGHTING ENG CONSTR

Sand dust storm intensity change prediction method based on satellite remote sensing

The invention provides a sand storm intensity change prediction method based on satellite remote sensing, and the method comprises the steps: carrying out the feature extraction of the wind speed distribution and change rule of a complex region with severe topographic relief through earth surface observation data and historical wind field records, and generating a preliminary mode distribution diagram of the change of a wind speed field; according to the critical change interval of the sand raising trigger condition, historical simulation data of transmission path change and migration velocity parameters of sand and dust particles at different height layers are obtained, the influence of the change trend of the wind direction deflection degree on the sand and dust transmission path is analyzed, and the sand and dust transmission path is determined by combining the migration velocities of the sand and dust particles at different height layers. Determining a dynamic offset characteristic of the transmission path; and according to the optimized wind field inversion result, generating a comprehensive distribution diagram of sand dust storm intensity prediction, and determining the space-time distribution precision of the predicted sand dust storm intensity and influence range result by comparing the prediction boundary of the influence range of the sand dust storm with the actually measured data of the sand dust settlement area obtained in advance.
Owner:HUANENG LIAONING CLEAN ENERGY CO LTD +2

A method for early warning of power transmission line disasters based on capacitor leakage current characteristics

This invention discloses a disaster early warning method for transmission lines based on capacitor leakage current characteristics. The method constructs a multi-dimensional insulation characteristic model based on the fundamental formula for leakage current, establishing a functional relationship between the leakage current constant and temperature / pressure, and between the correction value and surface contamination. By synchronously collecting capacitor voltage, leakage current, and environmental micro-meteorological data in real time, an iterative algorithm decouples the actual value and the value from the total leakage current. Logical discrimination is then performed based on the rate of change and vector direction of these two values: when the value increases sharply with high temperature and undergoes abrupt changes due to smoke and dust adhesion, it is determined to be a wildfire; when the value is stable but increases with the cumulative increase in particulate matter concentration, it is determined to be a sandstorm or heavy pollution. This invention inverts macroscopic disasters through microscopic changes in electrical physical quantities, effectively eliminating interference from normal environmental temperature rises, and achieving millisecond-level perception and accurate graded early warning of external disasters affecting transmission lines.
Owner:ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD

Mine underground debris flow risk quantitative analysis and evaluation method

The application discloses a kind of mine underground debris flow risk quantitative analysis and evaluation method, belong to metal mine disaster prevention technical field.It includes calculating the 24 hours rainfall under different storm frequency;Determine the sand critical hydraulic gradient, collapse sand critical hydraulic gradient, calculate sand water level height, collapse sand water level height;Calculate the upper boundary storm infiltration of quaternary sand and gravel layer under the most unfavorable condition, calculate the sand storm leakage and collapse sand storm leakage of the lower boundary of quaternary sand and gravel layer;Compare the leakage and infiltration, preliminary determine sand or collapse sand risk, calculate the time required for water level to rise to sand water level height or collapse sand water level height, finally determine sand or collapse sand risk;Using the same method to analyze the sand, collapse sand risk under short-time heavy rainfall condition.The application realizes quantitative analysis of underground debris flow risk under different rainfall intensity, can determine the disaster trigger mechanism, give the critical criterion of mine underground debris flow formation, provide prevention and control decision basis.
Owner:NORTHEASTERN UNIV CHINA

A primary air filter for high dust storm environments that is resistant to clogging and easy to maintain, and its preparation method.

This invention relates to the technical field of air purification and discloses a pre-filter for high dust storm environments that is resistant to clogging and easy to maintain. The filter includes an installation mechanism comprising a main frame with side slots on both sides and a strip groove at the bottom. A magnetic sealing strip is located within the strip groove, and a positioning docking block is located within the main frame. The filter also includes a composite gradient filter layer mechanism, comprising an inner frame containing a coarse interception and flow guiding layer, a high dust-holding adhesive adsorption layer, and a strength-supporting flow equalization layer, stacked sequentially. The inner frame has a folding handle, a positioning docking groove, a reverse installation groove, and a limiting groove. The advantages of this invention are: by setting up a modular quick-installation structure for the installation mechanism and the composite gradient filter layer mechanism, precise positioning is achieved using the side slots, positioning docking block, and positioning docking groove. Combined with the tight seal between the magnetic sealing strip and the inner frame, the installation efficiency and sealing reliability of the filter are effectively improved.
Owner:SHENZHEN XIANG NAN HIGH TECH PURIFICATION EQUIP

Spatial prediction method for dust storm source area susceptibility based on sp-gsh-el model

The present application relates to the field of meteorological remote sensing, and specifically discloses a sandstorm source area susceptibility spatial prediction method based on an sp-GSH-EL model; including sandstorm source point extraction, non-sandstorm source point extraction, obtaining a covariant, defining a response variable, integrated learning model training, and sandstorm source area susceptibility prediction; by combining aerosol optical depth (AOD) threshold method and hourly AOD change rate, the dynamic change of dust source point can be more accurately captured, and the timeliness and accuracy of sandstorm source area monitoring can be improved. At the same time, it has the ability to capture spatial heterogeneity: the sp-GSH-EL model combines different spatial proximities to optimize the description ability of local heterogeneity, global similarity and non-linear relationship, and improve the modeling accuracy of multi-scale spatial data.
Owner:INSTITUTE OF GRASSLAND RESEARCH OF CAAS

Thermal solar collector device for heating a fluid

A thermal solar energy collector device (1) is disclosed, comprising a solar energy absorption tube (10) for a fluid and a reflector (20) arranged along the tube (10) to focus reflected light onto the tube (10), thereby heating the fluid inside the tube (10). The device (1) has walls (30, 35) and feet (40, 45) at its respective first end (1a) and second end (1b), through which the tube (10) extends. The reflector (20) and walls (30, 35) are rotatable relative to the feet (40, 45). The walls (30, 35) and feet (40, 45) are sized such that the reflector (20) can rotate from its open position, where it receives sunlight, to a closed position, in which the inner side (22) of the reflector is surrounded by the walls (30, 35) and the rotated reflector. Thus, the reflector can be easily protected, for example, during a sandstorm.
Owner:KALMASTANGA CONSULTING TRADING CO LTD

Sand storm early warning protection method, system and equipment for vehicle

The invention discloses a sand storm early warning protection method, system and equipment for a vehicle. The method comprises the following steps: acquiring environment data outside the vehicle, determining that a sand storm risk level is greater than a first preset threshold value according to the environment data outside the vehicle, executing a first protection strategy, hermetically separating an environment inside the vehicle from the environment outside the vehicle, and converting into a first protection state; in the first protection state, it is confirmed that the vehicle is buried by a sand storm, whether a second protection strategy is executed or not is judged, if yes, the vehicle is controlled to be converted into a second protection state from the first protection state, and the environment inside the vehicle is communicated with the environment outside the vehicle; based on the external environment data, sand storm early warning is performed, the first protection strategy is executed, sand and dust are prevented from invading the vehicle, whether the vehicle is buried or not is judged, the carbon dioxide concentration parameter in the vehicle is monitored, the second protection strategy is executed, oxygen is supplied to the interior of the vehicle or ventilation is performed, and the survival probability in the extreme environment is improved.
Owner:RIVOTEK TECH (JIANGSU) CO LTD

A method, apparatus, device, and storage medium for predicting the movement path of a dust storm.

This invention relates to a method, apparatus, device, and storage medium for predicting the movement path of dust storms. The method involves: acquiring an aerosol optical thickness dataset and geographic background information of a dust storm event; generating a binarized labeled dust storm image sequence based on the aerosol optical thickness dataset; selecting key features from the geographic background information using a random forest feature importance method; concatenating the dust storm image sequence with the key features to obtain an input dataset; constructing an initial mixture model for predicting the dust storm's movement path; training the initial mixture model using the input dataset to obtain a target mixture model; and using the target mixture model to predict the future movement path of the dust storm. This approach achieves efficient and accurate prediction of dust storm movement paths.
Owner:INNER MONGOLIA NORMAL UNIVERSITY