30 results about "Tornado" patented technology

The invention discloses a multi-source data and physical information fused tornado space-time intelligent prediction method, which comprises the steps of collecting observation data of a Doppler weather radar and reanalysis data of a mid-term weather forecast center, performing projection conversion, space alignment, time interpolation and the like of space-time dimensions, and fusing key physical characteristics of the tornado; establishing a space-time convolution model network suitable for tornado multi-scale feature extraction, inputting fusion features and corresponding coordinate information, and outputting a prediction control quantity of tornado space-time evolution; a physical control equation of the atmospheric motion and thermodynamic process is converted into a penalty term, a space-time convolution model loss function is embedded, and physical information constraint is carried out on network parameters; and obtaining tornado prediction control quantities of different time windows in the future, and generating a probability graph of the potential development area of the tornado. Through fusion of multi-source data and a physical mechanism, future tornado event probability is quantified, and reliable data support and scientific basis are provided for meteorological prediction and emergency response.

The application relates to the technical field of meteorological detection, in particular to a tornado cooperative observation method based on a detection device. The method comprises the following steps: performing real-time monitoring on regional micro-pressure and meteorological echoes of a suspicious target area through a micro-pressure gauge and an S-band new-generation weather radar, and performing strong convective occurrence matching prediction to obtain a strong convective occurrence prediction target area; performing solar radio calibration processing on corresponding radar detection equipment and triggering a tornado detection strategy cooperative instruction to perform strong convective target three-dimensional cooperative observation and target strong correlation area fusion division, so as to generate a strong convective target and strong correlation area radar field; performing strong convective feature analysis on the strong convective target and strong correlation area radar field, so as to generate a tornado and strong convective feature data set; acquiring a preset tornado feature library and performing tornado recognition analysis, so as to generate a tornado occurrence prone grid area. The application can improve the monitoring accuracy and real-time performance of the tornado detection process.

The invention relates to the technical field of weather radar monitoring and early warning, and particularly provides a weather radar tornado identification false alarm suppression method, which comprises the steps of acquiring an event to be predicted; substituting the event to be predicted into a pre-constructed tornado prediction model to obtain a tornado prediction result; and selectively executing tornado early warning based on the tornado prediction result. Wherein the step of constructing the tornado prediction model comprises the steps of obtaining a plurality of historical tornado events, and preprocessing the plurality of historical tornado events to obtain a historical tornado event data set; determining and optimizing an influence radius based on the historical tornado event data set to obtain an optimized influence radius; and constructing a tornado prediction model based on the historical tornado event data set and the optimized influence radius. According to the method, secondary judgment on the weather radar tornado recognition result is achieved, the situation of tornado false alarm is relieved, the accuracy of tornado early warning is improved, the trust degree of the public to tornado early warning is improved, and waste of emergency resources is avoided.

Computer-aided procedure that features: Detecting a first drilling platform at a first location by a processor (721) and using a first machine learning model at least partially based on a first data set containing spectral data describing a gas emission from the first location; Detect, by the processor (721), an environmental event within a minimum distance from the drilling platform; Determine, by the processor (721), a probability of damage to the first drilling platform as a result of the environmental event; and Predictions of a suitable location for a second drilling platform at a second site without a drilling platform, at least partially based on a similarity between the terrain of the second site and the terrain of the first site, and a probability of damage resulting from the environmental event at the second site, wherein the environmental event is a fire, landslide, tornado, hurricane, or flood.

The invention discloses a short-term wind power prediction method and system considering regional and meteorological characteristics, and the method comprises the following steps: carrying out the modal decomposition of wind power data and meteorological characteristic data through employing successive variational modal decomposition, and carrying out the optimization of a penalty factor of SVMD through employing a Red-beak-Blue-Tapie optimization algorithm, so as to obtain an optimal power modal component; constructing a long short-term memory prediction model, and constructing an optimized LSTM prediction model by taking the hidden unit number, the maximum training period and the initial learning rate of the prediction model as optimization objects of a tornado optimization algorithm; and inputting the optimal power mode component obtained by decomposition, the meteorological feature data and the regional feature data into the optimized LSTM model for training and prediction to obtain a predicted value of the power mode component, and performing superposition reconstruction to obtain a wind power prediction result. According to the method, the regional and meteorological characteristics are combined with a double-layer parameter optimization strategy, so that the prediction stability and accuracy can be improved.

The application discloses a tornado-affected power distribution conductor wind load calculation method and system and a storage medium. The method comprises the following steps: constructing a tornado wind field model, simplifying the wind field into a main leading tangential wind speed distribution; extracting a conductor segment center position under a span configuration, and measuring a radial spatial relationship of the conductor segment center position relative to a tornado center; establishing a wind load integral calculation model of each span segment of the conductor, and calculating an aerodynamic load distribution of adjacent span conductors; converting the conductor aerodynamic force into an external load of a power distribution pole structure through load direction decomposition and structural stress analysis; and superimposing conductor transmission loads and pole body wind pressure, and calculating a total wind load response of the power distribution pole. The method realizes accurate modeling and distribution of the conductor aerodynamic force in the space and structure layers. The method is suitable for wind load analysis of a power distribution line under the action of tornadoes and other local strong winds, and provides fine input parameters for safety evaluation of a power distribution system structure.

The invention discloses a tornado field unmanned aerial vehicle tracking method and system based on multi-mode perception and dynamic path planning and an unmanned aerial vehicle, and the method comprises the steps: integrating meteorological radar data, a satellite cloud picture and multivariate data collection equipment sensing information, combining reinforcement learning and a multi-target optimization algorithm, and planning an optimal tracking path; the unmanned aerial vehicle cluster works cooperatively with a self-organizing network through hierarchical formation, and realizes real-time measurement and minute-level data return of a three-dimensional wind field in a tornado core area by adopting local storage and satellite direct transmission dual channels. According to the tornado field unmanned aerial vehicle tracking method based on multi-modal sensing and dynamic path planning, the problems of low resolution, response lag and the like of a traditional detection means can be solved, and rapid tracking and accurate measurement of a tornado three-dimensional wind field are achieved.

The invention discloses a storm radar characteristic quantity driven machine learning tornado identification method, and belongs to the field of meteorological disaster weather identification, and the method comprises the following steps: obtaining a storm radar characteristic quantity containing key characteristic information through characteristic extraction and optimization processing based on body sweeping radabundance data; performing feature quantity normalization processing and feature quantity missing value processing on the storm radar feature quantity to obtain an input sequence containing a plurality of elevation angle layer data; and inputting the input sequence into a recognition model fusing Transform and CNN, and outputting a tornado recognition result. According to the method, the technical problems of feature redundancy, insufficient local and global feature fusion, data missing sensitivity and the like in a traditional tornado identification method are effectively solved.

The application discloses a super-large tornado wind tunnel horizontal moving system, which comprises a track, a walking wheel set and a fan mounting platform, the fan mounting platform is provided with a fan section and an airflow ascending section mounted above a tornado flow guide device, the fan section is connected with the airflow ascending section, the walking wheel set is mounted at the bottom of both ends of the fan mounting platform, and the walking wheels of the walking wheel set are rollingly mounted on the track. The fan mounting platform arranged above the tornado flow guide device is mounted on the walking wheel set, so that the fan mounting platform can walk along the track, the movement of the tornado can be simulated, and the super-large tornado wind tunnel horizontal moving system is closer to the actual situation, and is more reliable and accurate compared with the static simulation system in the prior art.

The present invention discloses a multi-scale AI identification method, device and medium for extreme gale events that integrate physical constraints, and relates to the fields of atmospheric science and artificial intelligence technology. The method constructs a novel multi-scale extreme gale event identification model by integrating multi-scale meteorological data. The model effectively captures the characteristics of extreme gale at different scales through three modules: multi-scale feature extraction, feature fusion sharing, and multi-task output. In addition, the model introduces a physical constraint loss design to ensure that outputs such as wind speed and air pressure conform to the laws of meteorological dynamics. Through deep learning analysis of meteorological data, combined with the understanding of physical mechanisms, the present invention can effectively distinguish different types of extreme gale events such as hurricanes, thunderstorms and tornadoes, providing reliable data support and scientific basis for meteorological forecasting and emergency response.

The present invention discloses a tornado wind tunnel with an adjustable ascending channel height, comprising a movable platform and a deflector assembly, an airflow ascending section, and a fan section mounted on the movable platform. The rotatable and adjustable deflectors of the deflector assembly are arranged circumferentially along the airflow ascending section. The output port of the deflector assembly is connected to the input port of the airflow ascending section, and the input port of the fan section is connected to the output port of the airflow ascending section. An air inlet control assembly for blocking the radial air inlet area is installed at the input port or the output port of the deflector assembly. The present invention simulates the horizontal movement of a tornado on the ground by mounting the deflector assembly, the airflow ascending section, and the fan section on a movable platform. By adjusting the rotation angle of the deflector and the radial air inlet area of ​​the input port or the output port of the deflector assembly, tornado wind fields with different swirl ratios can be simulated.

Conventional replacement fastening components only secure the ridge end, so in the event of extremely strong winds such as typhoons or tornadoes, the top end of the replaced roofing material can easily be lifted up by the lever principle. [Solution] The replaceable fastening member of the present invention consists of a replaceable base member and a replaceable head-side upper fixing member. The replaceable base member has the same basic configuration as the fastening member, and the replaceable head-side upper fixing member has a U-shape with a lower insertion part, a vertical upright part, and a head-side upper fixing part. The inner height of the vertical upright part is higher than the outer height of the head-finding contact surface. When installing the replaceable fastening member, after fixing the replaceable base member to the base plate, the replaceable head-side upper fixing member is inserted so that it is positioned on the upper and lower outer sides of the head-finding contact surface of the replaceable base member, and is positioned so that the outer side of the head-finding contact surface of the replaceable base member and the inner side of the vertical upright part of the replaceable head-side upper fixing member come into contact.

A thunderstorm cloud real-time simulation method based on cloud chart comprises the following steps: step S1: obtaining a pixel point ray direction, constructing a large world cloud layer space, and calculating the effective rendering length of the pixel point ray; step S2: based on a two-dimensional cloud chart texture, a three-dimensional noise texture and a position-density function, calculating the bulk density of the volume cloud in the pixel point ray direction to obtain a thunderstorm cloud shape; step S3: constructing a vortex field, calculating the centripetal force received by the cloud body during movement, offsetting the cloud chart sampling UV to realize the movement control of the thunderstorm cloud; and step S4: according to the light position, the light color, the cloud body preset color and the sampling point density, the cloud body color in the pixel point ray direction is obtained by combining the light transmission model; the thunderstorm cloud real-time simulation method based on the cloud chart can quickly and real-timely generate a tornado type thunderstorm cloud in a large world range, and to a certain extent, solves the simulation problem of a complex volume cloud.

The present disclosure pertains to a roof anchoring system designed to enhance the structural resilience of buildings and prevent roof uplift during severe weather conditions such as storms, tornadoes, and hurricanes. The system addresses the need for a cost-effective, easily installable solution that can integrate with existing roof structures or new roof builds, thereby providing greater rigidity, among other benefits. Components include a base affixed to a bearing wall, a vertical reinforcement member extending from the base, radius arms connected to the vertical reinforcement member via angular adjustment members, and radius brackets securing the radius arms to the roof rafters and timber walls / sheeting.

The invention provides a harmonic detection method and device based on improved SVD and parameter optimization VMD. The method comprises the following steps: carrying out improved noise reduction preprocessing on a noisy harmonic signal, and determining an effective rank by adopting singular value shrinkage to realize noise separation; an improved tornado optimization algorithm is adopted to optimize a preset modal number and a penalty factor of variational modal decomposition, the improved tornado optimization algorithm introduces a thunderstorm number adaptive adjustment strategy, and the thunderstorm number is dynamically adjusted according to population diversity to balance global exploration and local development capabilities; constructing a fitness function, and according to the improved tornado optimization algorithm TOC algorithm, minimizing the fitness function to obtain an optimal preset modal number and a penalty factor; decomposing the denoised signal by using an optimal preset modal number and a penalty factor to obtain each harmonic modal component; and modulating each modal component based on a second-order central difference Teager energy operator, and extracting instantaneous amplitude and frequency information of harmonic waves.

The utility model relates to the technical field of wind prevention of conveying belt equipment, in particular to a quick windproof pressing rod mechanism suitable for typhoon or tornado conditions. The device comprises a supporting frame, a windproof pressing rod and a rotary locking piece, the two ends of the windproof pressing rod are rotationally connected with the supporting frame and can be tightly attached to the belt face of the conveying belt, the rotary locking piece comprises a handle and a ratchet wheel, the handle is fixedly connected with one end of the windproof pressing rod and provided with ratchets and an operating rod, and the operating rod controls meshing of the ratchets and the ratchet wheel through an elastic piece. According to the mechanism, rapid locking and unlocking can be achieved through simple manual operation, the locking convenience and locking efficiency of the windproof pressing rod are improved, and safe operation of the conveying belt under the extreme weather condition is effectively guaranteed.

The present invention discloses an automatic telescopic deflector for a tornado wind tunnel and a rail transit equipment compartment thereof, comprising a fixed deflector and a telescopic deflector, wherein the fixed deflector comprises a fixed support frame, a drive shaft, a telescopic drive assembly, and a fixed deflector, wherein the drive shaft is fixedly connected to the fixed support frame, and the fixed deflector covers the fixed support frame, and the telescopic deflector comprises a telescopic support frame and a telescopic deflector covering the telescopic support frame, wherein the telescopic deflector is sleeved with the fixed deflector, and the drive end of the telescopic drive assembly is connected to the telescopic deflector. The present invention allows the telescopic deflector to be driven by the telescopic drive assembly to slide up and down relative to the fixed deflector, thereby controlling the deflection area of ​​the tornado formation entrance, and further enabling real-time adjustment of some parameters of the tornado, thereby facilitating precise control of tornado formation and facilitating the smooth progress of subsequent experiments and research.

A gasifier with a tornado flame effect comprises an outer shell and a furnace core provided in the outer shell, wherein the furnace core comprises a carbon bridge and a secondary combustion enclosure connected to the carbon bridge. A cavity is formed between the secondary combustion enclosure and the outer shell, and a plurality of vent holes are provided on the carbon bridge. A plurality of air inlet holes are provided on the lower part of the outer shell, a plurality of air outlet holes are obliquely provided in the same direction, and the air inlet holes are communicated with the air outlet holes through the cavity; the plurality of air outlet holes form at least one layer of concentric circular structure along a height direction of the secondary combustion enclosure, and the plurality of air outlet holes are circumferentially evenly distributed on the concentric circular structure. The gasifier has a cylindrical design as a whole, and an inclined air outlet holes 421 are designed at the upper part of the secondary combustion enclosure 42. On the basis of realizing the full combustion of secondary oxygen supply, the swirling flame effect is realized, which is good in appreciation and meets the needs of various scenes.

The application discloses a tornado spatio-temporal intelligent prediction method fusing multi-source data and physical information, and comprises the following steps: collecting observation data of Doppler weather radar and reanalysis data of a medium-term weather forecast center, performing projection transformation, spatial alignment and time interpolation operations in the time-space dimension, and fusing key physical characteristics of tornadoes; a spatio-temporal convolution model network suitable for multi-scale feature extraction of tornadoes is established, input fusion characteristics and corresponding coordinate information are input, and a prediction control amount of spatio-temporal evolution of tornadoes is output; a physical control equation of atmospheric movement and thermodynamics is converted into a penalty term, and is embedded into a spatio-temporal convolution model loss function to constrain network parameters with physical information; tornado prediction control amounts of different time windows in the future are obtained, and a tornado potential development area probability graph is generated. Through fusion of multi-source data and physical mechanisms, a future tornado event probability is quantified, and reliable data support and scientific basis are provided for meteorological prediction and emergency response.

The invention discloses a calculation method and system for a power distribution wire wind load under the tornado effect and a storage medium. The method comprises the steps that a tornado wind field model is constructed, and a wind field is simplified into dominant tangential wind speed distribution; extracting the center position of the lead section under the span configuration, and measuring the radial space relation of the center position relative to the tornado center; establishing a wind load integral calculation model of each span section of the conductor, and calculating aerodynamic load distribution of conductors of adjacent spans; through load direction decomposition and structural stress analysis, the aerodynamic force of the wire is converted into an external load of the distribution pole structure; and superposing the wire transmission load and the rod body wind pressure, and calculating the total wind load response of the power distribution rod. And accurate modeling and distribution of the aerodynamic force of the wire in the space and structure levels are realized. The method is suitable for power distribution line wind load analysis under the action of local strong wind such as tornado, and fine input parameters are provided for power distribution system structure safety evaluation.

The application discloses an oil fume extractor, which comprises a smoke collecting hood and a main fan, a main air inlet is formed in the smoke collecting hood, a cyclone device is arranged between the main air inlet and the main fan, the cyclone device comprises a rotating flow collecting part and an outer cover arranged on the outer periphery of the rotating flow collecting part, a longitudinal extension suction jet flow channel is formed in the rotating flow collecting part, the suction jet flow channel is in fluid communication with the main air inlet and the main fan respectively, a cyclone flow channel is formed between the rotating flow collecting part and the outer cover, a nozzle for spraying air flow obliquely downward is arranged at the top of the cyclone flow channel so as to form a cyclone in the cyclone flow channel, and the lower part of the cyclone flow channel is in fluid communication with the suction jet flow channel. Compared with the prior art, the oil fume extractor has the advantages that: an induced rotating flow is formed, in the center of the induced rotating flow, air flow flows upward to form a suction jet flow, the induced rotating flow combines with the suction jet flow to form a "tornado" phenomenon, the oil fume is not easy to diffuse in the cyclone covering area due to the tornado phenomenon, the oil fume is gathered to the center of the air inlet, and the diffusion of the oil fume is slowed down.

The optimized condenser is an indirect evaporative cooling system with a mechanism of placing the water film in the vicinity of the combined air directed on one side of the metal surface of the main cooling elements against the impact of the target air perpendicular to the other side of the surface of the said elements and the optimal direction of the target air flow in a venturi shape. This condenser has a weather diffuser in the upper area of the condenser that has valves that are equipped with A sprinkler nozzle consists of a body whose target air outlet is smaller than the target air intake opening. Inside the condenser, there are three types of cooling elements in the form of air passage profiles, the main elements have a curvature against the target airflow and a vertex behind the stream to avoid tornadoes, which are arranged horizontally and crosswise and on both sides of the wall The condenser, angled cooling elements resemble a staircase, and in the funnel area of the condenser body, there are cubic cooling elements. The cooling fins are also located in the form of floors with a small distance, in which the inlet air of the target is divergent and convergent and the side currents of the main axis are all distributed horizontally and vertically, and when colliding with the curved part of the main profiles that have a water film from the inside, the cooling action is performed.

The utility model discloses a double-turbine powerful fan dust removal device with a cyclone nozzle, and aims to solve the problem that the conventional dust removal device needs to be externally connected with a workshop air source as a cyclone or tornado input source, so that the application of the device is limited. The dust removal device comprises a main shell, a cavity is formed in the main shell, a double-turbine powerful fan is installed in the main shell, an air inlet communicated with the double-turbine powerful fan is formed in the upper surface of the main shell, an air outlet communicated with the double-turbine powerful fan is formed in the lower surface of the main shell, and a cyclone nozzle is installed at the output end of the double-turbine powerful fan. Powerful axial wind of 30 thousand revolutions per minute can be generated through the double-turbine powerful fan, powerful cyclone generated by the powerful axial wind through the cyclone nozzle is sprayed out to act on a medium to be dedusted, meanwhile, negative pressure of the integrator externally connected with the negative pressure connector can be continuously adjusted to form a balanced convection flow field with the cyclone, air leakage is avoided, and an external workshop air source is not needed.

This invention discloses a tornado-based anti-drone device and method. The anti-drone device includes a control component, a tornado generation component, a sensing component, and an action component. The sensing component is connected to the tornado generation component, and the tornado generation component is connected to the action component. The input terminals of the tornado generation component and the action component are connected to the control component. The sensing component is used to identify the target drone and obtain the distance between the target drone and the anti-drone device. The action component is used to adjust the orientation of the tornado generation component connected to it through roll and pitch movements. The tornado generation component is used to generate a tornado. The control component is used to receive target information sensed by the sensing component and control the action component and the tornado component to operate. This invention generates a tornado to accurately strike the target at close range. The anti-drone device has a simple structure, is easy to handle, and is convenient to operate.

1. Name of the product in this design: Phased Array Weather Radar (X-band Dual Polarization). 2. Purpose of this design: To detect and monitor rapidly changing weather phenomena, capture in real time the three-dimensional structure and evolution of severe convective weather such as hail, tornadoes, and thunderstorms, and provide disaster early warning in meteorological disaster prevention and mitigation. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention relates to the field of tornado simulation, and discloses a method for constructing a tornado CFD simulation model, which comprises the following steps of: constructing a tornado numerical wind tunnel model which comprises a plurality of rotational flow fans; setting the type and parameters of a target tornado, and calculating a three-dimensional velocity field of the target tornado by combining Rankine with a vortex model so as to construct a wind field of the target tornado; converting a target tornado wind field into a function which can be identified by CFD software through a field function, and mapping the function into parameters of the numerical wind tunnel model, so that the boundary speed of the rotational flow fan is matched with the calculated three-dimensional speed field; a three-dimensional closed fluid domain is constructed, grid division is carried out on the closed fluid domain, and differential grid configuration is implemented; configuring simulation parameters, and solving to obtain a target tornado three-dimensional velocity field simulation result; the reality sense and the flexibility of wind field simulation are effectively improved, and meanwhile, the simulation precision and the calculation efficiency are considered.

The invention provides a tornado intelligent identification method and system, and the method comprises the steps: carrying out the feature extraction of obtained multi-source meteorological data, obtaining meteorological feature parameters, carrying out the tornado risk identification based on the meteorological feature parameters through employing a grading early warning rule, and generating a tornado identification result. And precise identification and early warning of the tornado are realized.

This invention relates to the field of weather forecasting, specifically to a method and product for identifying tornado risk locations. The method includes the following steps: periodically collecting weather radar detection data, including TVS, mesocyclone, and lowest-level reflectivity factor data; performing the following steps on the data collected in each cycle: classifying TVS, mesocyclone, and strong echo areas as a risk target set; sorting the risk targets within the risk target set in descending order of their weights; and then providing their monitoring images sequentially to forecasters. Compared to existing technologies, this invention improves identification accuracy and enhances the timeliness of early warnings.

The present application provides a self-excited cyclone dust cover, which can effectively collect the chips discharged by a cutting tool, has high cleaning rate, small air flow pressure loss, small required air volume and low overall energy consumption. The dust cover comprises a flexible chip blocking throttle ring, a cyclone collecting ring and a collecting cylinder. The cyclone collecting ring is circumferentially provided with a plurality of air inlets, the inner wall of the air inlet close to the longitudinal axis of the cyclone collecting ring is tangent to the inner wall of the cyclone collecting ring. The flexible chip blocking throttle ring surrounds the cyclone collecting ring and extends downward beyond the lower end of the cyclone collecting ring. The air inlet of the collecting cylinder is sealingly connected to the upper end of the cyclone collecting ring, and the air outlet of the collecting cylinder is used for connecting a collecting cover shell or a negative pressure suction pipe. Under the action of negative pressure, air is forced to be sucked into the cyclone collecting ring along the tangential direction of the inner wall of the cyclone collecting ring, and a tornado-shaped rotating upward air flow in the same rotating direction is formed in the cyclone collecting ring and the internal region of the collecting cylinder above the cyclone collecting ring.

ABSTRACT The present disclosure pertains to a roof anchoring system designed to enhance the structural resilience of buildings and prevent roof uplift during severe weather conditions such as storms, tornadoes, and hurricanes. The system addresses the need for a cost-effective, easily installable solution that can integrate with existing roof structures or new roof builds, thereby providing greater rigidity, among other benefits. Components include a base affixed to a bearing wall, a vertical reinforcement member extending from the base, radius arms connected to the vertical reinforcement member via angular adjustment members, and radius brackets securing the radius arms to the roof rafters and timber walls / sheeting.