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30 results about "Flash flood" patented technology
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A flash flood is a rapid flooding of low-lying areas: washes, rivers, dry lakes and depressions. It may be caused by heavy rain associated with a severe thunderstorm, hurricane, tropical storm, or meltwater from ice or snow flowing over ice sheets or snowfields. Flash floods may occur after the collapse of a natural ice or debris dam, or a human structure such as a man-made dam, as occurred before the Johnstown Flood of 1889. Flash floods are distinguished from regular floods by having a timescale of fewer than six hours between rainfall and the onset of flooding. The water that is temporarily available is often used by plants with rapid germination and short growth cycles and by specially adapted animal life.
Method and system for generating a flash flood risk score
Computer-based systems and methods are disclosed for modeling and predicting flash flood risks for real estate properties. In some embodiments, the systems and methods can predict flash flood risks for real estate properties by considering a variety of factors, including watershed hydrology characteristics, land surface characteristics, meteorological characteristics, and / or property characteristics. In some embodiments, the systems and methods can improve determination of investment metrics or automated valuations by considering flash flood risks in determining the investment metrics or automated valuations.
Owner:CORELOGIC SOLUTIONS
Barrier lake dangerous classification and landslide-type debris flow and flash flood warning method
ActiveCN110533884AJudgment Formation ConditionsHuman health protectionAlarmsRisk ControlCritical condition
The invention relates to the technical field of risk control theory and basic research of disaster prevention and mitigation, and discloses a barrier lake dangerous classification and landslide-type debris flow and flash flood warning method, which solves the technical problem of barrier lake dangerous classification and can judge the formation conditions of debris flow and flash flood after the barrier lake collapses. The invention comprises the following steps: obtaining parameters first; then performing barrier lake dangerous classification and early warning; calculating a peak flow rate, and calculating critical conditions of the landslide-type debris flow; and then performing early warning on the landslide-type debris flow and flash flood dangerous case. During the landslide of the barrier lake, the maximum gravity of the mixed liquid is at the maximum peak flow rate; and if the debris flow cannot be formed in a river-way or a channel at the peak flow rate, the debris flow cannotbe formed during the entire landslide, so that a flash flood is determined; and if the debris flow can be formed in the river-way or the channel at the peak flow rate, it is determined that the debrisflow is formed.
Owner:SICHUAN AGRI UNIV
Dynamic flash flood simulation method based on irregular unstructured grid model
ActiveCN108021780ARealize dynamic simulationRealize simulationClimate change adaptationDesign optimisation/simulationTerrainWater flow
The invention discloses a dynamic flash flood simulation method based on an irregular unstructured grid model. The simulation method comprises the following steps: selecting a simulation area, and collecting data; performing grid division aiming at a complex computational domain and an irregular terrain by adopting an irregular unstructured grid; describing water flow by adopting a two-dimensionalunsteady flow shallow water equations, and solving the equations by using a finite volume method and a Riemann approximate solver; calculating flood arrival time, flood inundation time, maximum floodinundation water depth, maximum flood level and maximum flood flow velocity of each grid unit; and obtaining flood arrival time isograms, flood inundation time isograms, maximum flood inundation water depth isograms, maximum flood level isograms and maximum flood flow velocity isograms. According to the method disclosed by the invention, dynamic simulation and simulation of flood inundation processes in flash flood susceptible areas based on the complex computational domain and the irregular terrain can be realized, the flood inundation range, inundation water depth, flow field and other flood elements are simulated and calculated in real time, and the visualized simulation of the flood inundation process is realized.
Owner:NARI TECH CO LTD
System and method for monitoring river flow in real time through simulating binocular vision
InactiveCN111089625ABreak down barriers to transmissionEasy to measureVolume/mass flow measurementWater resource assessmentRiver networkData stream
The invention discloses a system and a method for monitoring river flow in real time through simulating binocular vision in order to overcome a problem that an existing flood warning system is inaccurate. The system comprises a river water surface tracing platform, a natural water surface observation platform, an image acquisition and transmission platform and a flow estimation platform, wherein the river water surface tracing platform comprises a natural water surface floating object or a natural water surface wave; the natural water surface observation platform comprises two high-definitionwide dynamic wide-angle non-distorted camera modules; the image acquisition and transmission platform comprises a plurality of remote routers which communicate through 5G; the flow estimation platformcomprises a flow calculation module and a monitoring display module; an online data real-time transmission platform is built on the basis of an optical flow method and a 5G technology, rapid analysisof data flow and online flow monitoring are realized, and the analysis response time reaches hundreds of milliseconds. Real-time and reliable flow measurement and estimation are carried out on a river network by using a computer vision means and the calculation capability, so that the severity of an event is evaluated more accurately, and a flash flood condition is improved.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER
Steel framed bridge for small river and capable of achieving flood discharge and water drainage conveniently
The invention discloses a steel framed bridge for a small river and capable of achieving flood discharge and water drainage conveniently. The steel framed bridge comprises a machine body. A detectionplate is fixedly arranged on the bottom face of the machine body. A detection space is arranged in the detection plate. A limiting sliding cavity is formed in the top side of the detection space. A working cavity is formed in the machine body. Detectors for detecting the magnitude of water flow are arranged in the detection space and the limiting sliding cavity. When water flow is too large, a blade, a cross shaft and a sector gear are driven to rotate fast, and the sector gear meshes with a lifting plate and can drive the lifting plate to move up. The steel framed bridge can be fixedly installed in land on both sides of the river, and people in a village can go in and out conveniently. When a flash flood occurs and water flow is too large, a turbine can be started to drain off water actively, thus impact of the water flow to the surface of a bridge body is reduced, and safety of the bridge is protected.
Owner:惠安县科曼源科技服务有限公司
Double-mode flash flood warning control system and method
InactiveCN106971510AHigh precisionWide coverageHuman health protectionAlarmsControl systemMeasuring instrument
The invention discloses a double-mode flash flood warning control system and a method, which belongs to the technical field of disaster warning. The invention especially relates to a method of building a flash flood warning control system based on critical rainfall and soil moisture saturation, and particularly relates to a flash flood disaster comprehensive research and judgment and warning control system coupling critical rainfall and soil moisture saturation. Workstations are built in flash flood-prone areas or geologically fragile areas, wherein there are no flash flood hazards near the workstations. A soil moisture measuring instrument, a data transmitter, an automatic rainfall recorder, an automatic weather station, a GPS base station and other facilities are arranged in each monitoring area. The system couples critical rainfall and soil moisture saturation. The possibility and magnitude of flash flood are determined according to critical rainfall and soil moisture saturation respectively. A single standard is changed to double guarantee, and the sensitivity and accuracy of monitoring are improved. The system and the method can be widely applied to hilly areas, and realize more accurate, timely and efficient monitoring and warning on flash flood disaster.
Owner:HOHAI UNIV
Flash flood early warning method based on deep learning
ActiveCN110459036ASolve vanishing gradientEffective forecastHuman health protectionKernel methodsAlgorithmDrainage basin
The invention discloses a flash flood early warning method based on deep learning. According to the method, an RNN (recurrent neural network) model with an LTSM (long short-term memory) function is adopted. Problems of gradient disappearance and gradient explosion in the RNN can be effectively solved by adding the LTSM to a model algorithm, prediction of small watersheds or flash flood areas can be performed more effectively, reliable flash flood disaster early warning and predictionare achieved, and prediction time is greatly shortened. The model is only required to focus on input data, so that the model has the characteristics of being convenient to operate and high in operation speed, and facilitating value shifting to other areas. Moreover, with the practical application of the model,data is accumulated continuously, no secondary parameter adjustment is required, parameters can be optimized and adjusted actively by the model, and accordingly, the model is simpler and more convenient to use.
Owner:HYDRAULIC SCI RES INST OF SICHUAN PROVINCE
Flash flood water level monitoring and pre-warning system
InactiveCN102235897AReduce loss of life and propertyLess power consumptionLevel indicators by dip membersElectricityWater level rise
The invention provides a flash flood water level monitoring and pre-warning system, a monitor sensor of which is a buoy position sensor. The buoy position sensor is a digitally coded wireless electric module, wherein a conductive suspended hammer or a conductive rod, a conductive ring and a conductive contact are arranged in the buoy; generally, the conductive suspended hammer or conductive rod is not contacted with the conductive ring, and the sensor does not consume electricity; and when the buoy is inclined to a certain angle due to water level rising, the conductive suspended hammer or the conductive rod is contacted with the conductive ring, the wireless electric module is electrified to work, a coded wireless electrical signal is sent out and received by a monitoring center and a warning station of a protected region through a relay station, and an alarm is sent out. When the weight completely floats in the buoy position sensor, the conductive ring is separated from the conductive contact, the circuit is disconnected, and the sensor does not consume electricity, so the system can work repeatedly. The water level monitoring and pre-warning system can warn the absolute height of water level, and warn the instant strength of flood.
Owner:周叔一
Innovative technology for controlling water and soil loss
InactiveCN108643203AShorten speedSimple technical operationDamsSewerage structuresWater storageEngineering
The invention relates to agriculture, in particular to an innovative technology for controlling water and soil loss. The innovative technology mainly comprises the following steps: digging interception ditches and water storage pits, disposing grille bars, burying water storage pipes, mounting the water storage pipes and building water stopping ridges. The innovative technology is wide in application range and simple in technical operation, can effectively reduce the speed of a flood and store the flood in case of a flash flood, not only reduces potential safety hazards but also utilize storedwater through drainage, guarantees moisture in land and facilitates agricultural development.
Owner:刘凤山
A Flood Forecasting Method Based on Doubling Algorithm
The invention discloses a flood forecasting method based on a multiple ratio algorithm, which includes: step 1, calculating the current flow value of the target small watershed; step 2, calculating the flow value in the upstream forecast period according to the actual measured grid point rainfall data; step 3, Compare the current flow value of the target small watershed with the flow value in the foreseeable period; step 4, when the flow value in the foreseeable period exceeds the current flow value of the target small watershed by more than twice the current flow value of the target small watershed, an early warning message is sent through the flood control forecasting system; it solves the problem of the prior art Mountain torrent disaster early warning is based on the monitoring of the current rainfall by the rainfall station, and it is determined whether to issue early warning information compared with the critical rainfall; because the upper reaches of many small watersheds have experienced light to moderate rain, the resulting changes in rainfall and flow are not enough to trigger the flood warning system. When the instantaneous flow rate suddenly doubled, it caused flash floods, and tourists in the river channel were not prevented enough to cause casualties and other problems.
Owner:GUIZHOU EAST CENTURY SCI TECH CO LTD
Intelligent early-warning visual deep-water gate system and mounting method thereof
PendingCN108442333AAvoid dangerAvoid destructionBarrages/weirsClosed circuit television systemsWater leakageWater flow
The invention relates to the field of deep-water gates, in particular to an intelligent early-warning visual deep-water gate system and a mounting method thereof. The intelligent early-warning visualdeep-water gate system comprises a deep-water gate, a high-strength closed container, a camera, a data line and an opening-closing room, wherein the opening-closing room comprises a host; the deep-water gate is in the submerged state for a long time; the high-strength closed container is used for the mounting of the camera on the reverse side of the deep-water gate; and two ends of the data line are correspondingly connected with the camera and the host, so that data of the camera can be transmitted to the host. By adoption of the above structure, the intelligent early-warning visual deep-water gate system, compared with a conventional deep-water gate, has the beneficial effects that an alarm is given in real time when dynamic water flow is detected, so that the water leakage phenomenon ofthe deep-water gate can be found as soon as possible, the cause of the water leakage phenomenon can be immediately acquired through analysis, and the timely treatment can be performed; various dangers brought to a dam can be avoided, and then the surrounding structure can be protected against damage; and a flash flood caused by the fact that a reservoir or the dam is subjected to dam emptying canbe prevented.
Owner:CHANGSHA JINHONG HYDRAULIC TECH
System to safeguard vehicle from flash flood and puddles
PendingUS20210272440A1Accurate informationImprove reliabilityPedestrian/occupant safety arrangementAlarmsDriver/operatorIn vehicle
An on-vehicle flash flood safety system is disclosed to install a water level sensor between front tires, underneath of vehicle which checks the water level on road. When the water level is found above a predetermined mark, an extendible-retractable shaft is extended which contains a water flow sensor and SONAR device to find the depth and speed of flash flood water. This data is sent to a Control, Display, and Alert Unit which calculates if it is dangerous to enter into such water. If found dangerous, the system gives an audio-visual alarm. System also collects location using GPS and sends location, water, and speed of water data to a computer server to be stored and distributed to other vehicles. By means of the aforesaid performance, on-vehicle flash flood alarm System informs the driver of the motor vehicle to not proceed if there is danger of the vehicle getting swept away.
Owner:FAIZAN MIRZA
A mountain torrent disaster early warning and monitoring system based on edge computing
ActiveCN112738754BRealize remote transmissionAchieve sharingFluid pressure measurement using piezo-electric devicesRainfall/precipitation gaugesTelecommunicationsTransport layer
The present invention relates to a mountain torrent disaster early warning and monitoring system based on edge computing, including a perception layer, a convergence layer, a transmission layer and an application layer: the perception layer is used to collect sensor data; the convergence layer participates in global collaboration at the edge of the sensor network , used to fuse different locations and different types of sensor data; the transmission layer is used to realize the communication link between the aggregation layer and the application layer; the application layer is used for real-time monitoring and emergency command of flash flood disaster-causing elements. The invention can provide low power consumption, low cost, distributed computing, mass connection, and real-time credible data services for disaster prevention and mitigation.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION +1
A flash flood warning method based on deep learning
ActiveCN110459036BSolve vanishing gradientEffective forecastHuman health protectionKernel methodsAlgorithmEngineering
The invention discloses a flash flood early warning method based on deep learning. The invention adopts the RNN model with LTSM function, and adding the long short-term memory (LTSM) method to the model algorithm can effectively solve the problems of gradient disappearance and gradient explosion in RNN, and more Effectively forecast small watersheds or mountain torrent areas, realize reliable mountain torrent disaster early warning and forecast, greatly improve the forecast time, the model only needs to pay attention to the input data, has the characteristics of easy operation, fast calculation speed, and easy transfer to other areas, and With the actual application of the model and the continuous accumulation of data, there is no need to manually adjust the parameters twice. The model will actively optimize and adjust the parameters to make its application easier and more convenient.
Owner:HYDRAULIC SCI RES INST OF SICHUAN PROVINCE
A simple flash flood early warning device based on the principle of super seepage runoff
InactiveCN105225427BReal-time monitoring and early warningSimple structureHuman health protectionAlarmsEarly warning systemEngineering
Owner:HOHAI UNIV
Concrete face rockfill dam pre-settling construction method
InactiveCN101691744BImprove compactnessAccelerated settlement deformationEarth-fill damsRock-fill damsEarly releaseWater flow
Owner:CHINA GEZHOUBA GROUP NO 5 ENG
Critical rainfall early warning method for mountain torrent disaster under multi-scenario mode
ActiveCN109242336BHigh degree of fitImprove the accuracy of early warningClimate change adaptationResourcesAtmospheric sciencesComputer science
The invention discloses a critical rainfall early warning method for mountain torrent disasters in a multi-scenario mode, which comprises the steps of: collecting disaster prevention object data with a small watershed as a unit; determining the soil state in the early stage; determining the type of possible local rainstorms to carry out rainfall time course allocation design; scenarios Mode combination; determine the critical rainfall under different scenario modes; select the corresponding critical rainfall grading warning for different weather conditions. The present invention considers the flash flood disaster outbreak conditions under different scenarios under natural conditions, focuses on the design rain pattern and the influence of the uncertainty of the soil state in the early stage, and combines the measured data of the control section of the small watershed to try to calculate different critical rainfall values, according to the actual situation The corresponding mountain torrent early warning was issued, and through the test of the measured storm and flood process, it was proved that the mountain torrent disaster early warning mode under the multi-scenario mode is feasible, which improved the fit between the mountain torrent disaster early warning and natural conditions, and further improved the mountain torrent disaster early warning. reliability, credibility and applicability.
Owner:ZHENGZHOU UNIV
Energy-saving and power-saving binary output flash flood sensing device
InactiveCN104236634BAccurate quantitative basisSave energyHuman health protectionMeasurement devicesWater flowWater level
The invention discloses an energy-saving and power-saving binary output type mountain torrent sensing device which comprises an independent water flow sensor and an independent water level sensor. The water flow sensor consists of a water flow impact sensing device and a tension measuring device, and the water level sensor comprises a water level follow-up device consisting of an outer floater, a crown block and inner and outer connection pull ropes. Short circuit plate electrodes are mounted in the water flow sensor and the water level sensor respectively and provided with electrodes with the minimum dimension delta or delta', measurement binary output range 2N and measurement length output range delta*2N, and all electrodes with equal weights are in short circuit connection. The short circuit plate electrodes in the water flow sensor include a high-order short circuit plate electrode and a low-order short circuit plate electrode. Numbers are outputted according to short circuit relation between short circuit plates and short circuit connecting lines of short circuit plate electrodes. Energy is saved by external arrangement of a rain starting switch device and a regular brief starting switch device. The energy-saving and power-saving binary output type mountain torrent sensing device which adopts binary output is simple and reliable in structure and easy to popularize.
Owner:莫也兰
Dynamic risk assessment method for mountain torrent disasters coupled with hyperspectral monitoring and gis
ActiveCN113487123BAchieve precisionAchieve reliabilityClimate change adaptationGeographical information databasesRisk mapEngineering
The invention discloses a dynamic risk assessment method for mountain torrent disasters coupled with hyperspectral monitoring and GIS. It includes the following steps: Step 1: Construct a hyperspectral remote sensing technology application system; Step 2: Extract information related to mountain torrent disasters; Step 3: Simulate the evolution and disaster process of single and compound disasters; Step 4: Build a stepwise regression equation ; Step 5: Determine the index system of the risk of mountain torrent disaster; Step 6: Obtain the risk map of mountain torrent disaster and the result map of mountain torrent disaster vulnerability; Step 7: After normalization, obtain the risk map of mountain torrent disaster at multiple spatial scales; Step 8 : To divide the flash flood disaster risk zoning in a specific area. The invention has the advantages of realizing the accuracy, reliability and timeliness of the basic data in areas prone to mountain torrent disasters.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
A method and system for regional flash flood risk prediction
ActiveCN111047099BAchieve forecastOvercome the problem of low efficiency of single-point risk prediction processingClimate change adaptationForecastingEngineeringMeteorological models
The invention discloses a regional mountain torrent risk prediction method and system, wherein the prediction method includes: S1, predicting the weather information of all hills in the region based on a meteorological model; S2, screening out the mountains that need risk prediction based on the weather information Hill; S3. Divide the hills that need risk prediction into different risk prediction levels according to their basic information; different risk prediction levels correspond to different risk prediction periods; The preliminarily determined disaster-causing factors are screened to obtain the main disaster-causing factors affecting mountain torrents; S6. Training and generating multiple mountain torrent risk prediction models based on the main disaster-causing factors; S7. Selecting several risk prediction models with the best performance to form the final Risk forecasting model; S8. Perform flash flood risk forecasting for the hills to be forecasted. The invention realizes risk prediction for regional hills, realizes low cost, wide coverage and high processing efficiency, and improves the safety of hills.
Owner:杭州鲁尔物联科技有限公司
Automatic protection safety device for preventing fish running away from fishpond during rainstorm
PendingCN107549081AProtection securityPrevention of rainstorm running fishPisciculture and aquariaWater dischargeEngineering
An automatic protection safety device for fish running in a rainstorm in a fishpond belongs to the field of aquaculture and the field of breeding safety protection. A discharge pipe is fixed on the top of its base, and a floating body switch is set on the upper part of the discharge pipe. The floating body switch and The discharge pipes are directly sealed or sealed by a sealing ring; the water discharged from the discharge pipes is directly sent out of the pond sill or out of the pond sill through the drain pipe or through the water channel. The float switch can move up and down on the upper part of the discharge pipe, and can open or close the drainage channel while moving up and down. The automatic protection safety device for rainstorm fish running in the fish pond has a compact and reasonable structure, is convenient to manufacture and use, has strong ability to protect the safety of fish ponds, and has a high degree of automation, effectively preventing the occurrence of heavy rain and mountain torrents running fish. It is a modern fish farmer's choice best choice.
Owner:巫忠胜
A kind of mountain torrent debris flow sand retaining dam with power generation function and its application
ActiveCN112195869BAvoid damageConvenient follow-up maintenance and replacementBarrages/weirsWater-power plantsWater filterEnvironmental engineering
The invention relates to the field of geotechnical engineering for geographical environment control, and specifically discloses a torrent and debris flow sand retaining dam with the function of generating electricity and its application. In the present invention, by adding a splitter device upstream of the sand control dam, the turbine water filter net and the debris flow grid in the device can filter and separate water and stones, and can use the separated water for water storage, and use the height difference to make the sand control dam It has the function of generating electricity. The torrent and mud-rock flow sand retaining dam of the present invention not only reduces the disaster of torrent and mud-rock flow, but also utilizes the advantage of the natural height difference of the sand retaining dam to generate power, so that the sand retaining dam has certain economic utility.
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
A method for real-time flash flood warning based on the critical rainfall of rainfall time history distribution
ActiveCN109920213BFast automatic calculationGuaranteed accuracyHuman health protectionAlarmsAtmospheric sciencesRainout
Owner:HOHAI UNIV
A Flash Flood Early Warning Method Considering the Spatial Heterogeneity of Rainfall
ActiveCN111462450BHigh precisionAccurately quantify the distributionHuman health protectionMachines/enginesHydrometrySoil science
The invention discloses a mountain torrent early warning method considering the spatial heterogeneity of rainfall, which belongs to the field of hydrological forecasting. The method includes: acquiring soil saturation and composite rainfall within a set time period before the occurrence of multiple historical flood peaks in the watershed to be early warning; wherein , the combined rainfall takes into account both the amount of rainfall and the spatial distribution of rainfall; construct a mountain torrent early warning model based on the above soil saturation and compound rainfall; collect the soil saturation of the watershed to be warned, and obtain the critical composite rainfall index corresponding to the current soil saturation according to the mountain torrent early warning model, By comparing the current composite rainfall and the critical composite rainfall index in the basin to be warned, it is judged whether the flood caused by rainfall is a super-warning flood. The method of the invention can specifically quantify the unevenness of the spatial distribution of rainfall and the distribution of the center of the rainstorm, and the calculated critical composite rainfall index not only considers the size of the rainfall, but also considers the spatial distribution of the rainfall, thereby improving the accuracy of mountain torrent warning.
Owner:HUAZHONG UNIV OF SCI & TECH +1
Real-time cumulative rainfall storm torrent early warning method based on rainfall runoff response
ActiveCN109902395BImprove accuracyScientific and Proven GuidanceHuman health protectionDesign optimisation/simulationRainfall runoffAtmospheric sciences
The invention provides a real-time accumulated rainfall rainstorm mountain torrent early warning method based on mountainous area small watershed rainfall runoff response. The method comprises the following steps: (1) selecting a small watershed river reach of a mountainous area needing rainstorm mountain torrent early warning as a target river reach, and searching flood characteristic data of n-stage rainstorm mountain torrent of the target river reach and rainfall characteristic data of stage rainstorm corresponding to the n-stage rainstorm mountain torrent; Determining a flood abrupt rise time point of each field rainstorm mountain flood according to the flood characteristic data; (2) analyzing the n times of rainstorm mountain torrent; (3) determining a critical cumulative rainfall index for sending out rainstorm mountain torrent early warning; (4) 1, when rainstorm occurs at the upstream of the target river reach, collecting time period rainfall data of field rainstorm, and calculating accumulated rainfall from the beginning of rainfall to different time period rainfall data collection time points in real time; And 2, when the accumulated rainfall capacity in the step (1) reaches a critical accumulated rainfall capacity index for giving out rainstorm mountain torrent early warning, immediately giving out the rainstorm mountain torrent early warning.
Owner:SICHUAN UNIV
Field measurement method for mountain torrent disaster investigation and evaluation
The present invention relates to the field of water conservancy measurement, particularly to a field work measurement method for flash flood disaster investigation and evaluation. According to the field work measurement method, a triangle reference station network is constructed from three reference stations, wherein the distance between the reference stations is 40-60 km; the latitude information, the longitude information and the elevation information of each position in the triangular area are measured by using the reference station network; after the measurement of the one triangular area is completed, the one reference station moves while the other two reference stations do not move so as to construct a triangular reference station network again; and the previous steps are repeatedly performed until the measured triangular areas cover all the areas to be measured. According to the present invention, the triangular mobile networking technology is used, and the CORS network is established; the application radius is 50 Km, and the precision is 1-3 cm; the channel cross section and the topography of the village along the river are efficiently, reliably and economically measured; and the working efficiency is 10-100 times the working efficiency of the traditional measurement.
Owner:辽宁省水文局
A school flash flood warning terminal station
ActiveCN106846738BRich varietyUnderstand comprehensivelyHuman health protectionAlarmsInformation typeEmergency plan
The invention discloses a school mountain torrent early warning terminal station which comprises a display unit, an alarming unit, an RCU remote control unit, a monitoring computer and a power supply unit, wherein the power supply unit can provide electricity for the early warning terminal station, the RCU remote control unit is connected with the alarming unit and the monitoring computer respectively, and the monitoring computer is connected with the display unit. The school mountain torrent early warning terminal station disclosed by the invention has rich display information types, can refresh and display received possession periphery water level rainfall monitoring station information, possession weather information, mountain torrent early warning information, disaster emergency plan, on-campus registered teacher and student data registration information, notice and announcement information and the like on a display module in real time and enables local early warning objects to comprehensively and timely know local related early warning information.
Owner:安徽省(水利部淮河水利委员会)水利科学研究院(安徽省水利工程质量检测中心站)
Method of building and updating mountain torrent disaster database based on web crawler and semantic recognition
ActiveCN110377680BComprehensive and accurate analysisImprove integrityWeb data indexingSemantic analysisInformation resourceData information
The invention relates to a method for constructing and updating a mountain torrent disaster database based on web crawler and semantic recognition. It uses web crawler technology and semantic analysis method to grab information web pages and extract key information of mountain torrent disasters, and packs the extracted information into The standard related information is stored in the mountain torrent disaster database, and it is updated and supplemented in real time. This method makes full use of network information resources, supplements and collates the flash flood information at the site, describes and analyzes the occurrence and development process of flood events more comprehensively and accurately, and solves the problem that the current flash flood disaster network data resources are large in number, variety, and source, and it is difficult to accurately The technical problem of efficiently extracting useful data information provides a useful method for the rapid construction and update of the mountain torrent disaster database.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
A gis flood prevention and early warning system based on big data
ActiveCN111784082BImprove forecast accuracyEfficient early warningForecastingGeographical information databasesImage manipulationEngineering
The invention provides a GIS mountain torrent prevention and early warning system based on big data, which is used to solve the problems of limited monitoring range, insufficient reference data and low prediction accuracy of the existing torrent forecasting system, including a cloud computing platform, an environmental monitoring module, and a terrain monitoring module , image processing module, neural network module, data query module, data storage module, alarm driver module and intelligent terminal module; the present invention is provided with a neural network module, which is designed to build a predictive model based on existing data, which can improve the overall Prediction accuracy; the present invention is provided with environmental monitoring module, terrain monitoring module and image processing module, provides abundant data for the present invention, has guaranteed the mountain torrent early warning precision of the present invention; Data storage module is provided in the present invention, and this design is to make up for cloud computing The shortcomings of the platform's storage capabilities make the system more complete and stable.
Owner:安徽亿纵电子科技有限公司
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