740 results about "Torrential rain" patented technology

The invention discloses an analysis and evaluation method for inrush mountain torrent disasters of regions without data, and relates to the field of mountain torrent disaster analysis and evaluation. The method comprises the steps that the basic information of a project area is obtained; the landform, the river position form and the flood control current situation of an evaluated object are obtained; the catchment area and runoff components of the dike confluence drainage basin of each small watershed in the obtained evaluated object are determined; rainstorm parameter calculation, rainstorm calculation and concentration-time-based rainstorm time interval distribution of the evaluated object are obtained; flood calculation is designed, and the water level and flow relation of a riverway section, prone to inrush, of the evaluated object is obtained; the riverway flood control current situation in the evaluated object is determined, and accordingly danger zone grade division is conducted; and an early warning point is established, the early warning water level of the analyzed and evaluated object is determined, and the early warning index of the analyzed and evaluated object is formulated. According to the analysis and evaluation method, the inrush mountain torrents serves as the main analyzed and evaluated object, and a current riverway flood control current situation evaluation method and an early warning index analysis method are provided.

The invention relates to an Internet of things service system and method of a risk analysis and early-warning of urban road rainstorm and waterlogging, which are characterized by including a user layer, a presentation layer, a model layer, and a data layer. The user layer is used to provide different types of agents with an interface and to make it convenient for users of different types of agents to log in the service system. The presentation layer is used to collect basic data input by different types of agents and related to the risk analysis of the urban road rainstorm and waterlogging, and to display risk assessment results. The model layer is used to conduct information optimization and information integration on the collected basic data, and to establish a risk assessment model to evaluate risk information and send the risk assessment results to the presentation layer. The data layer is used to classify and store all the data involved in the user layer, the presentation layer and the model layer to make it convenient to search for and maintain later. The Internet of things service system and method of risk analysis and early-warning of urban road rainstorm and waterlogging can be widely applied to the risk analysis and the early-warning of the urban road rainstorm and waterlogging.

The invention discloses a dynamic-modification-combined storm rainfall fine alarming method for a power grid zone. The method includes an S1 step of forecasting local precipitation amount, generating forecasting information and extracting forecast values of precipitation at tower positions of a power grid; an S2 step of extracting position information of towers of the power grid meeting condition for rainstorms and storm rainfall information; an S3 step of determining correcting indexes by utilizing history observational data of a meteorological station and corresponding forecast information, correcting the forecast values of precipitation at the tower positions of the power grid of the current date according to the correcting indexes and acquiring the final forecast result; and an S4 step of making priory forecast of power equipment according to the final forecast result and publishing rainstorm disaster early warning information for the towers of the power grid. By adopting the method provided by the invention, accuracy of the storm rainfall forecast value of the current date is improved effectively, so that an effective information guarantee is made for rainstorm disaster early warning.

The invention discloses an initial rainwater and rain-sewage mixed overflow water storage pond facility with a flood peak reduction function. The initial rainwater and rain-sewage mixed overflow water storage pond facility comprises a storage pond, a retention pond, an outflow pond, a rainwater inlet pipeline and a rainwater outlet pipeline. A rainwater control gate and a flood peak overflow weir which are arranged on the lateral side of the retention pond are communicated with the storage pond respectively. A draining pump is arranged between the storage pond and the outflow pond. A water quality detector is arranged in the retention pond. When initial rainwater and rain-sewage mixed overflow water enter the retention pond and water body quality is poor, the rainwater control gate is opened to enable the initial rainwater and the rain-sewage mixed overflow water to enter the storage pond; water body with good quality directly flows out from the rainwater outlet pipeline; in case of storm flood, most of rainwater of flood peaks is discharged out of the retention pond from the rainwater outlet pipeline, and the rest automatically overflows into the storage pond through an elevation of the flood peak overflow weir, so that the flood peaks are branched and reduced, and flood peak reduction stress of main downstream rainwater pipe culverts and even watercourses is relieved.

A mobile canopy system providing shelter from the sun, rain, and wind. The canopy system contains at least two canopy system sections, each containing one centrally located support structure. A truss system is attached to the support structure, perpendicularly extending the length of the canopy system section. Canopy framing systems are perpendicularly connected to, and intervally spaced along, the truss system. Cross bars are perpendicularly connected to the ends of the canopy framing systems, extending the length of the canopy system section. The canopy lies in an inclined plane, suspended from the cross bars, providing adequate clearance for underlying activities including golf. The inclined canopy, suspended below the truss system and canopy framing systems, provides absorbing and deflective protection to the user from errantly hit objects, whereby the canopy absorbs the force of the errant object and deflects the object out and away from the participant under the canopy system. An additional, retractable vertical canopy system provides further protection from high wind, driving rain, and early morning or late afternoon sun.

The invention discloses a 0.1mm and 0.5mm sense quantities combined multi-tipping bucket rainfall sensor. A cylindrical rain holder is arranged; a base is arranged at the bottom of the cylindrical rain holder; and a lower water collector, a lower large tipping bucket, a middle water collector, a middle small tipping bucket, an upper water collector, an upper small tipping bucket, a vertical board and a funnel which are all arranged on the base in the rain holder in sequence from the top down, wherein an anti-blocking device is arranged above the funnel. The 0.1mm and 0.5mm sense quantities combined multi-tipping bucket rainfall sensor is reasonable in structure, novel and initiative at home; the technical indexes exceed the rule of the national standard GB/T11832-200 tipping bucket type rainfall gauge; and the disadvantage that the traditional double-tipping bucket type rainfall sensors can not tip rapidly in heavy rain and do not tip in light rain. The 0.1mm and 0.5mm sense quantities combined multi-tipping bucket rainfall sensor is suitable for measuring the rainfall of areas with big rainfall intensity change and continuous rainstorms, and can fill the gap of the domestic rainfall sensors for the measurement of heavy rain.

The invention relates to a method for continuously drawing humid and hot air on the ground according to the chimney effect by utilizing a chimney type air guide tower so that the humid and hot air rapidly floats to break the up-and-down convection of the humid and hot air and dry and cold air by the greenhouse effect and achieve the aims of controlling ground air temperature and humidity, reducing carbon dioxide and dust concentration in ground air and artificially raining and environmental air conditioning equipment. The application of the technology realizes the aim that people reform nature by utilizing nature. The method and the equipment can be used for controlling the temperature and the humidity of urban ground air and carrying out artificial rainfall and also used for preventing great loss on agriculture, forestry, electric industry, communication industry, and the like by natural disasters, such as strong wind, rainstorm, thunder, lightning, hail, and the like due to strongly convective weather; meanwhile, cool weather is more beneficial to the growth of crops and prevents damage by diseases and insects. In the aspect of fishery, the invention can improve the oxygen dissolving amount of a pond and prevent the generation of the phenomenon of fish dead by pond turn-over; meanwhile, cool water temperature is more beneficial to the growth of aquatic animals and plants.

The invention discloses a probability distribution based short-time rainfall forecast method and system, and belongs to the technical field of rainfall forecast. The system comprises a cloud atlas collection module, a meteorology data acquisition module, a data transmission module, a master control module, a rainfall probability generation module, a precipitation estimation module, a rainfall characteristic determination module and a data display module. The precipitation estimation module can obtain rainfall data of higher precision and confidence by using advantages of multi-source data; therainfall characteristic determination module uses a rainfall rain type characteristic matrix and time characteristic matrix of a rainfall station to describe the rainfall and movement condition of the rainstorm center in the aspects of time and space; and a mathematic matrix is used to describe the time-space distribution characteristic of rainfall, the rainfall characteristic is researched lateron the basis of the mathematic matrix, and the accuracy and comprehensiveness of rainfall characteristic research are improved.

The invention relates to a dual-polarization phased array weather radar. The radar comprises a waveguide slot planar antenna array which is formed by alternately configuring horizontally polarized antennas and vertically polarized antennas; a DTRU subsystem which is composed of a DTRU module and a cooling fan; a digital beam forming/signal processing subsystem which consists of a signal processingand light transmission module and a timing synchronization module; and a servo subsystem, a frequency source and distribution network subsystem and a monitoring subsystem, thereby achieving multipleworking mode requirements of double-transmitting and double-receiving, single-transmitting and double-receiving, and single-transmitting and single-receiving of the whole system. The working requirements of pitching dimensional phase scanning and single/multi-beam receiving can be met, weather target information can be rapidly detected, and occurrence and development of disastrous weather such asrainstorm, hail and tornado can be effectively monitored; meanwhile, dual polarization has good performance of quantitatively measuring echo intensity, and large-range rainfall can be quantitatively estimated; fixed-point, quantitative and timing rainfall forecasting is realized, and reliable and scientific detection data is provided for military and civil meteorological guarantee.

The invention discloses a highland severe convection weather short-term nowcasting and pre-warning system. A short-term nowcasting and pre-warning system is used for carrying out short-term nowcasting on the severe convection weather; a severe convection weather monitoring and forecasting system is used for monitoring the severe convection weather on the basis of meteorological observation materials; and a severe convection weather forecasting system is used for pre-warning and forecasting the severe convection weather by using the meteorological observation materials of an automatic meteorological station and the conventional meteorological observation materials. According to the highland severe convection weather short-term nowcasting and pre-warning system, a V-3Theda model of the severe convection weather is established to pre-warn the severe convection weather and distribute visual pre-warning information in time; a safety certification and authority management mechanism is provided for realizing the query, downloading, conversion and service of information under network environment in allusion to information service platforms of users with different authorities; and the forecasting level for the severe convection weather such as highland rainstorm, hailstone, snowstorm and the like is improved.

The invention discloses a regulation, storage and purification system and method for controlling rainwater and sewage confluence overflow pollution. A water inlet gallery comprises a sewage pump station water inlet, a regulation and storage sedimentation tank water inlet, a water storage type ecological filter tank water inlet and an emergency overflow port which are sequentially increased in height, and the water inlet gallery also comprises a regulation and storage sedimentation tank clarification overflow port connected with the water storage type ecological filter tank, so that a gradientline for graded treatment according to rainfall is formed, wherein the gradient line comprises a rain-free or small-rainfall line comprising the water inlet gallery, a sewage pump station and a sewagetreatment plant, a medium rainfall line comprising the water inlet gallery, a regulation and storage sedimentation tank and a sewage treatment plant, a long-time continuous moderate rain line comprising the water inlet gallery, the regulation and storage sedimentation tank, the water storage type ecological filter tank and a natural water body, a heavy rainfall line comprising the water inlet gallery, the water storage type ecological filter and the natural water body, and a rainstorm line comprising the water inlet gallery and an emergency overflow port for overflowing water to the natural water body; a later line comprises all the lines. According to the system, the pollution load of discharged water is greatly reduced under the condition of limited regulation and storage volume, and the system is economical and efficient.

The invention discloses a small watershed design flood derivation method. The method comprises steps of determining a downstream hydrological station of the small watershed, and obtaining informationincluding a watershed DEM map above the hydrological station and the like; loading the obtained information into GIS software, extracting a drainage basin water system, cutting and dividing the drainage basin water system into a plurality of natural sub-drainage basins, endowing hydrological identification numbers, adding hydrological units and generalizing a drainage basin map; obtaining the rainfall runoff process of the annual maximum-session flood of the outlet section of the basin above the hydrological station; establishing a hydrological model of the watershed above the hydrological station; therefore, small-watershed hydrological model parameters capable of reflecting rainfall runoff process information of the small watershed of the to-be-deduced design flood are obtained, the design rainstorm of the small watershed is calculated through a hydrological frequency calculation method, and the design rainstorm is brought into the calibrated small-watershed hydrological model to deduce the design flood process line of the small watershed. According to the method, high-precision design flood capable of reflecting rainfall runoff process information of the small watershed can be obtained through simple operation in the small watershed.

The invention discloses a recognition and forecast method for a rainstorm caused by the train effect. The method includes the steps that real-time radar data are preprocessed; single bodies subjected to preliminary area screening are subjected to preliminary fitting, interference is eliminated, and a suspected train effect area is searched for; after the suspected train effect area is determined, the train effect can be automatically recognized; through the moving distance of the center of mass of banded echoes of the suspected area and the rotating angle of the axis of the banded echoes of the suspected area, banded echo tracing is performed, and therefore the train effect can be traced; according to the moving inertia of the single bodies, the moving direction, the moving speed and the shape change of the suspected train effect area are extrapolated. The method has the advantages that when the train effect weather occurs, the train effect can be recognized, an alarm is given to a forecaster, extrapolation can be performed according to the train effect weather conditions at various moments, important reference is provided for the forecaster to perform subsequent forecast, and accuracy and rapidity are high.

The invention discloses a multi-data fusion meteorological prediction early warning method, and the method comprises the steps: carrying out the assimilation of meteorological observation data througha multi-source 4D-WRF-EnSRF data assimilation system, enabling the assimilation data to serve as the input of a DeepConvLSTMs artificial intelligence prediction network, and achieving the training ofthe network and the real-time rainfall prediction of multiple data sources; finely dividing rainfall intervals, and setting early warning levels; seamlessly dividing the coverage area of each mobilemeteorological station; and planning a mobile meteorological station, a meteorological monitoring center, a multi-means publishing platform and a prediction and early warning information publishing system, and guaranteeing real-time linkage of the system architecture. Multi-data acquisition and fusion are realized, prediction and early warning results are uploaded and issued in real time, a to-be-rescued area is rapidly locked, a rescue scheme is issued, and rescue field communication is ensured; the weather forecasting and early warning timeliness and accuracy are improved, the early warninginformation publishing coverage rate is increased, the weather disaster prevention and reduction service capacity and the rescue capacity are enhanced, and life and property losses caused by rainstormdisasters and secondary derivative disasters of the rainstorm disasters are effectively reduced.

The invention relates to the fields of collecting and recycling of urban rainfall and flood resources and paving of a road surface, and provides a new method for recovering and recycling the urban rainfall and flood resources. According to the new method disclosed by the invention, the problem of accumulated water in roads of residential areas during torrential rains can be solved, and the rainfall and flood resources in the residential areas can be effectively recovered; through natural purification treatment, the rainfall and flood resources can be converted into high-level rainwater potential energy so as to be used for flushing floors or other relevant use. The technical scheme adopted by the new method disclosed by the invention lies in that a system for preventing water from being accumulated on a road surface and recovering and recycling urban rainfall and flood resources consists of a permeable plate, a diversion layer and water storage tanks, wherein the diversion layer adopts a structure that a bottom layer is paved, a top layer is designed into a ridge shape, and lateral diversion trenches formed at equal intervals are formed in the top layer road surface and are used for guiding rainwater to the water storage tanks; water outlets for flushing the road surface are mainly paved in an interval zone between every two adjacent diversion trenches; and the water storage tanks are hung to two sides of the diversion layer. The new method and the system disclosed by the invention are mainly applied to the field of paving of city road surfaces.

The invention discloses a reservoir incoming water quantity early warning and forecasting method and system based on medium and small basin flood forecasting, and the method comprises the steps: carrying out the interpolation of rainfall data in space, organically combining the grid rainfall data with the site rainfall data, and carrying out the model rainfall calculation; then, converting the potential evapotranspiration of the soil into the total evapotranspiration of the watershed; constructing a runoff production method library, and performing runoff production calculation by adopting different runoff production methods according to different climate types; combining the time area relation unit line of the drainage basin with the confluence speed, and obtaining the confluence flow process through a convolution formula by means of the surface net rainfall; fitting river section characteristic parameters, performing river flood calculation; and processing non-standard rainfall process data into a standard time period for parameter calibration. According to the method, the spatial heterogeneity of underlying surface attributes such as terrain and vegetation soil in the drainage basin is fully considered, the rainstorm flood process of the medium and small drainage basins is well simulated, and reliable technical support is provided for early warning of the water inflow of the reservoir.

The invention provides a hail recognition method under multi-dimensional radar data based on semi-supervised learning, and the method comprises the steps: S1, obtaining a labeled sample set, randomly extracting a supervised sample set, a rainstorm sample training set and a hail sample training set, obtaining an unlabeled data set, and randomly dividing the unlabeled data set into q parts of first samples; s2, calculating a clustering center of each cluster training set; s3, clustering and dividing one first sample into corresponding clusters, and updating a clustering center; s4, performing iteration to obtain the clustering center of each cluster and the confidence coefficient of the corresponding cluster at the moment; s5, repeating the steps S2-S4 on the supervision sample set to obtain supervision confidence of the supervision sample set for each clustering center, and classifying the data into corresponding clusters; s6, judging whether the first sample is updated into the cluster or not, and repeating the steps S2-S6 until the first sample is processed; and S7, inputting the optimal clustering center as a recognition model, obtaining the confidence coefficient of each sample to each cluster, and performing classification. According to the method, the hail identification accuracy is effectively improved, and the false alarm rate is reduced.

The invention discloses a method for stimulating the action of soil under extreme climate, and an apparatus thereof. The method and the apparatus are suitable for the indoor manual controlled stimulation research of the change of physical and mechanical properties of soil under the action of drought, rainfall (acid rain) and drought and rainfall coupled extreme climate processes, and can stimulate the influences of the extreme climate on the properties of soil. The stimulation ground temperature is in a range of 0-75DEG C, the air humidity is in a range of 0-95%RH, and the rainfall intensity is 0-250mm/h and can be adjusted at will as needed to generate many types of rainfall (heavy rain and acid rain). Different work modules are started to research the mechanical response of soil under the environment action influences of drought, rainfall and drought and rainfall coupled climates; and the apparatus has the advantages of mutually independent systems, simple structure, convenient installation and dismounting, high flexibility and strong applicability.

The invention discloses a flood calculation method based on pipe-free silt protection dam burst prevention. Firstly, whether similar results exist or not is judged; if there are similar results, dIRECT OBTAINING OF PMP, if not, if so, discriminating feature elements or element combinations calculated by the PMF; a rainstorm mode is drafted through rainstorm physical cause analysis; the rainstorm mode is divided into a local mode and a displacement mode. The rainstorm mode is maximized; selecting a water vapor factor and a power factor; rainstorm data of the same type as the selected rainstormmode is used for analysis and selection; obtaining a PMP rainstorm total amount and a space-time distribution result of the dam system; finally, PMF calculation of dam system construction is considered; a PMF of an engineering design section is obtained through runoff generation calculation and confluence calculation of a PMP, a silt dam flood calculation system based on the burst prevention design concept is established, possible maximum flood is used for runoff design and engineering stability calculation of silt dam engineering, and the dam break problem caused by over-standard flood can befundamentally solved.

The invention relates to roadway illuminating equipment with a rainwater collection function. The roadway illuminating equipment comprises a lamp post, LED illuminating equipment bodies, a rainwater collection groove, an electricity supply part, a rainwater channel, a filtering part, a recycled water storage tank and a water purification part. By integrating the rainwater collection and purification parts on a traditional LED street lamp, rainwater is collected and purified, and the electricity supply operation is conducted on the LED lamp; and by electrically connecting a medium and small generators of the electricity supply part with the LED illuminating equipment bodies, the street lamp can be switched on automatically in the rainy or rainstorm weather, and the roadway driving safety in the severe weather causing bad views and the like is improved.

The invention discloses a mountainous area rainstorm monitoring method which comprises the following steps: satellite data and precipitation data of a ground base station and an automatic station areacquired; preprocessing the satellite data to obtain a satellite image and satellite resource data; processing the satellite image to obtain a mountainous rainstorm cloud cluster image; processing themountainous area rainstorm cloud cluster image based on the satellite resource data, and identifying a mountainous area rainstorm cloud cluster; automatically tracking and forecasting the rainstorm cloud cluster in a mountainous area; establishing a satellite quantitative precipitation estimation model based on the satellite resource data and the precipitation data of the ground base station andthe automatic station, and performing quantitative precipitation estimation on the forecasted mountainous rainstorm cloud cluster according to the satellite quantitative precipitation estimation model. According to the method disclosed in the invention, rainstorm monitoring of remote mountainous areas can be realized.

The invention discloses an urban small watershed classification and grading intelligent scheduling method. According to the invention, the method comprises the steps: taking rainfall forecast as a judgment condition; starting different scheduling modes according to the rainfall prediction situation, namely, rain-free starting ecological water supplementing scheduling, light rain starting water environment scheduling, medium rain starting water environment-flood prevention and drainage combined scheduling and heavy rain-rainstorm starting flood prevention and drainage scheduling; automaticallyswitching the scheduling modes along with the change of the rainfall situation, and dynamically adjusting the scheduling scheme. The complex comprehensive scheduling problem of the urban small watershed is decomposed through classified scheduling, so the processing scheduling target is clear, the scheduling model is simple, the calculation efficiency is higher, and the operability is higher; meanwhile, a simulation and optimization combined method is adopted, and a scheduling process is decomposed through a 'plan scheduling-optimal scheduling' two-stage scheduling mode, so the repeated trial process of an optimal scheduling scheme can be skipped, the time is saved, the efficiency is improved, and meanwhile, the method is more practical and more applicable to basic-level scheduling personnel.

The invention discloses an IDF curve-based urban disaster-causing rainfall rapid classification and judgment method, belongs to the technical field of urban flood disaster prevention and reduction, and extracts rainfall disaster-causing judgment results more intuitively and richly from the news perspective by utilizing the operability and high efficiency of a novel web crawler technical means. AnIDF curve is further introduced in combination with a local rainstorm intensity formula, the overall characteristics of urban disaster-induced precipitation are fully considered while the scattering defect of the precipitation process is overcome, the determination of the urban disaster-induced precipitation classification judgment standard is realized from the two perspectives of rainfall intensity and rainfall by combining the IDF curve and the precipitation process, and the precision and efficiency of urban disaster-induced precipitation forecasting and early warning are improved; the floodprocesses of different causes are further verified and summarized through the urban rainfall flood model SWMM so that the method can provide technical support for disaster prevention and reduction and drainage planning of domestic plain cities from the perspective of practical application.

The invention relates to an intelligent water pump gate dispatching decision-making system and a dispatching process thereof. The system comprises a station pump gate dispatching system, a central pump gate dispatching system and a cloud computing data service center which are in signal connection with one another, and the central pump gate dispatching system realizes information sharing with thestation pump gate dispatching system through the cloud computing data service center and remotely controls the station pump gate dispatching system; and the central pump gate dispatching system comprises a water resource comprehensive management module, a pump gate dispatching function module, a meteorological data acquisition module, a GIS system module, a flood control and drainage state moduleand an early warning prompt module which are in signal connection with the cloud computing data service center. The cloud computing data service center sends an instruction to the station pump gate scheduling system through the early warning prompt module and the pump gate scheduling function module; and, according to the invention, information sharing and remote scheduling among different scheduling systems can be realized, the potential of the existing water affair system is mined to the greatest extent, and the overall resistance to disasters such as rainstorm, high tide, flood and the likeis improved.

The invention relates to a building roof outdoor rain leakage preventing sunshade board system and particularly relates to a building roof outdoor rain leakage preventing sunshade board system provided with special-shaped elastic sealing strips. The technical scheme of the invention is as follows: a movable, openable and closable building roof outdoor rain leakage preventing sunshade board is provided, and when the outdoor rain leakage preventing sunshade board is opened, large area natural lighting and ventilation can be realized by adjusting the angle of blades; when the outdoor rain leakage preventing sunshade board is closed, sunlight can be completely obstructed in clear day, and in a rain day, even extraordinary rainstorm in the summer, rainwater can be smoothly drained off along a water drainage groove arranged in an outdoor rain leakage preventing sunshade board device; and interconnection parts among the blades are all provided with the special-shaped elastic sealing strips, so that spilling and leakage caused by rainstorm can be prevented effectively.