84results about How to "Disaster loss reduction" patented technology

The invention discloses a comprehensive monitoring and early warning system based on meteorology and a power grid GIS and a method thereof. The system comprises a data layer and an application layer. The data layer consists of a meteorological database, a power grid GIS database, and a production and operation database. The application layer includes a meteorological monitoring module, a meteorological early warning module, a power grid weather module, an information display module, and an auxiliary decision-making module. The meteorological database, the power grid GIS database, and the production and operation database carry out communication mutually; and the meteorological monitoring module, the meteorological early warning module, the power grid weather module, the information display module, and the auxiliary decision-making module carry out communication with the meteorological database, the power grid GIS database, and the production and operation database respectively. According to the invention, meteorological monitoring information like the temperature, wind direction, and wind speed and the like of important power equipment like a transformer substation, a transmission and transformation line, and a tower can be gotten in real time; and visual meteorological real-time data can be provided for the power grid. Meanwhile, prediction and disaster early warning information of the typhoon and thunder and the like can be provided every 12 hours in the next seven days.

The invention provides a transmission line mountain fire spread warning method with the combination of public network weather. The method comprises a step of obtaining a fire point coordinate, a step of calculating the spread speed of a fire point spread direction based on the fire point coordinate, a step of calculating the linear position of the fire point in the spread direction after a spread time according to the spread speed, and obtaining a spread coordinate, a step of calculating the spread area of the fire point according to the spread coordinate, a step of carrying out warning level definition on the transmission line in the spread area according to the spread time and issuing warning. According to the method, an effective information support is provided for the judgment of a grid mountain fire disaster by a power department, the mountain fire spread speed from the fire point to the transmission line can be calculated, the warning level of the transmission line is judged through time according to the mountain fire spread speed, and the method has high accuracy and practicability and plays an important role in maintaining security and stability of a grid and reducing a disaster loss.

The invention discloses a wind vibration simulation method of a 220kV power transmission line tower line coupled system. The wind vibration simulation method comprises the following steps: 1: establishing a finite element model of the power transmission line tower line coupled system; 2: carrying out formfinding on the power transmission line tower line coupled system; 3: carrying out wind load calculation on the power transmission line tower line coupled system; 4: carrying out damping calculation on the power transmission line tower line coupled system; and 5: carrying out wind vibration response calculation and data extraction analysis. The wind vibration simulation method establishes a fine and accurate finite element model of the power transmission line tower line coupled system, and considers the influence of structural damping during wind vibration simulation calculation. The wind vibration simulation method is suitable for carrying out wind vibration analysis on a power transmission line of an area where wind damage frequently happens. On the basis, the power transmission line is subjected to local reinforcement and wind damage early warning to minimize the disaster loss.

The invention discloses a slope slide calamity forecast method based on a RBF nerve network; the method comprises the following steps: building a slope slide calamity online monitoring forecast system, carrying out real time monitoring so as to obtain calamity forming factor data, using a MIV algorithm to screen the data, and using the calamity forming factor data obtained by monitoring as input variables; building a slope slide forecast model based on the RBF nerve network; inputting the calamity forming factor data into the slope slide forecast model, using the forecast model to process the inputted calamity forming factor data, thus finishing slope slide calamity forming probability prediction and forecast. The slope slide calamity forecast method based on the RBF nerve network can eliminate the influences caused by the factors irrelevant to a learning task in the inputted data on the learning performance in a data expression mode, and can keep the useful information in the learning task; the method can be applied to the slope slide calamity forecast, thus more accurately determining the slope slide calamity forming probability.

The invention relates to a flue-cured tobacco cultivation method resisting spring drought. The method comprises the steps that variety distribution is reasonably planned; ditching and ridging are carried out, and a two-row concave ridge which is 200-240cm in width and 20-25cm in height is implemented; for transplantation, seedlings are transplanted early in good time, transplantation is generally finished during the period from the end of March to the middle ten days of April, the method of a well cellar with the diameter of 8-9cm and the depth of 16-20cm is adopted, and a shovel is utilized for marking out a concave furrow which is 8-10cm in width and 2-3cm in depth on the ridge, so that the well cellar is dug easily, and water is prevented from being wasted; fertilizer is applied according to the equal nitrogen principle, and 30-50% of organic nitrogenous fertilizer is additionally applied to soil for the second time; film mulching is carried out, a film is uniformly compacted through soil in a line-shaped mode, and a gap between the surface of the soil and the film is 0.5-1cm. The method simple and easy to implement is adopted for carrying out flue-cured tobacco cultivation, harm to growth and development of flue-cured tobaccos due to the drought can be reduced, an effective yield increase way is provided for tobacco-growing areas suffering from the drought, the output value is increased, and the economic benefit is increased.

The invention discloses a landslide hazard monitoring system and method. The system comprises a data monitoring equipment module. The data monitoring equipment module is connected with a data transmission module; the data transmission module is connected with a data reception module; and the data transmission module and the data monitoring equipment module are connected with a power supply module for supplying power therefor. The data monitoring equipment module comprises a rainfall monitor for monitoring rainfall, a volumetric water content monitor for monitoring landslide soil body volumetric water content, and a GPS device for monitoring landslide surface displacement. The landslide hazard monitoring system and method can judge possible spatial form and development tendency of a side slope, capture feature information of slope disaster in time and predict slope instability damage time and range in time by monitoring the landslide surface displacement, the rainfall intensity and the soil body volumetric water content in real time, and summarizing response of the soil body volumetric water content to the rainfall and deformation features of the side slope.

An ice coating simulation method for a 220kV transmission line tower-coupling system is provided. The method comprises the following steps: (1) performing finite element modeling of an ice-covered transmission line tower-coupling system, including: modeling a tower by using a unit mirror command, modeling of an insulator and a split conductor spacer, and modeling of split sub-conductors and groundlines; (2) performing form-finding on the transmission line tower-coupling system; (3) calculating the ice-covered loads of the transmission line tower-coupling system; (4) calculating the ice-covered-wind loads of the transmission line tower-coupling system; and (5) performing response calculation and data extraction analysis under the ice coating. According to the method provided by the presentinvention, finite element modeling of the refined tower line is performed by using the unit mirror command, the modeling period is short, and the calculation efficiency is high; according to the actual arrangement manner of the split conductor, the coupling effect between the split sub-conductors is considered, and the model is more refined; and the analytical method and the finite element methodare combined to simulate the conductor, and the technical problems of finite element modeling and form-finding of the overhead line are solved.

The invention belongs to an environmental disaster monitoring and forecasting system which comprises a data acquisition and transmission system and a computer data forecasting and processing system, wherein the data acquisition and transmission system is connected with the computer data forecasting and processing system and is used for providing the aging data of a monitored object for the computer data forecasting and processing system; and the computer data forecasting and processing system is used for processing the aging data of the monitored object provided by the data acquisition and transmission system by using a creeping aging forecasting method, and outputting the processed result. The invention can accurately predict and forecast the occurrence time, scale and developing trend of landslides and earthquakes with sufficient accuracy, thereby basically achieving the purposes of prevention and reduction of disasters.

The invention belongs to the technical field of mine natural disaster information management, and discloses a mine natural disaster hazard source risk prevention mechanism management system and method. The mine natural disaster hazard source risk prevention mechanism management system comprises a physical model dynamic evolution module, a tailing pond dam break quantitative analysis module, a tailing pond dam break fault model building module and a tailing pond hazard source identification and evaluation module. The sharp mountain phosphate rock high and steep slope, the Kunyang phosphate rockdump and the seamouth phosphate rock cavern beach tailing dam are taken as research objects, major accident potentials of the tailing dam are identified and subjected to risk evaluation, and possiblefailure modes, disaster-causing mechanisms and dynamic evolution processes of main geological disasters such as the tailing dam can be revealed; a reasonable and effective disaster treatment measureand a prediction and forecast system are provided, scientific prevention of disasters is achieved, disaster losses are reduced to the minimum, reliable technical guarantee is provided for safe miningof surface mines, and reference is provided for similar mines.

The invention discloses a winter wheat meteorological disaster comprehensive risk dynamic evaluation method and device. In order to reduce the meteorological disaster risk of winter wheat is reduced,the whole growth stage of the winter wheat and meteorological disasters influencing the development and growth of the winter wheat are integrated, dynamic data are observed in combination with a regional automatic meteorological station, a comprehensive risk evaluation model is used as a basis, and the comprehensive risk dynamic evaluation of the main meteorological disasters of the winter wheat is realized; the accuracy and the dynamic property of risk evaluation are improved; disaster occurrence of winter wheat can be accurately early warned in advance. the transition from coping with a single disaster to comprehensive disaster reduction and the transition from the single disaster type to the comprehensive disaster reduction are realized; the disaster loss is reduced and the disaster risk is reduced; for induced factors, comprehensive risk assessment, hazard influence benefits and comprehensive integrated quantitative comparison of multi-disaster combinations at different time periods, dynamic quantitative risk assessment based on a crop growth mechanism and a disaster formation mechanism is realized, and an assessment result can meet the actual needs of meteorological disaster early warning and disaster prevention and reduction work.

The invention provides an inclination rectification reinforcing method for a disaster damage diseased deep pile foundation building. The inclination rectification reinforcing method comprises the following steps of selecting all piles or part of piles within a scope of a foundation of a building to be sunken to reversely incline; sequentially cutting the piles in different lengths based on the design requirements; connecting through a hydraulic jack and/or a steel plate pumping regulating device; gradually reversely inclining the building by regulating the device; or forcibly inclining the building to sink and reversely incline stably and slowly as the loading stress of the pile is increased by transferring bearing force of the cut broken pile on a retaining pile. The invention also provides an inclination rectification reinforcing method for a disaster damage diseased deep pile foundation building. With the adoption of the method, the bearing capacity of the pile is reduced by reducing the supporting friction resistance of the soil of the side foundation of some pile of the building so as to reversely incline the building to the side. The method can be applied to carrying out disaster resisting, disaster relieving and treating diseases to the deep pile foundation multi-rise or high-rise building based on common pile types.

The invention discloses a power transmission line icing multi-source monitoring and early warning method and system. According to the method, by combining various data sources from power grid icing automatic monitoring, manual reporting and meteorological satellite inversion and the like, coupling correlation analysis of power grid icing multi-source monitoring data is carried out, a power grid icing multi-source monitoring and early warning model integrating icing hidden danger, icing real-time monitoring, icing growth trend and emergency ice melting is established, comprehensive sensing andearly warning of power grid large-range regional icing are achieved, and power grid icing disaster prevention and control are facilitated. The method is high in practicability and convenient to operate, has guiding significance for power transmission line operation personnel in making icing emergency decisions, and plays an important role in maintaining safety and stability of a power grid and reducing disaster losses.

The invention relates to a method for planting double-high bean, wherein it comprises that selecting field, furnishing field, selecting seed, seeding, managing, and harvesting. Said corn is compact high-density kind and loose large-germ kind; the bean is resistant to loose plant; and it plants four or six rows of corn, while two side rows are planted with loose large-germ corn, and the middle is planted with compact one, and the nearby area is planted with bean at four or six rows, and the grooves at the middle of six rows of bean are planted with loose large-germ corn. The invention has low cost and high yield.

The invention discloses a power transmission line fire monitoring method based on video analysis. The method includes the following steps: 1) a video image acquisition device obtains image informationand sends the information a fire information acquisition module; 2) the fire information acquisition module judges fire disaster situation information and sends the information to a fire early warning processing module; 3) the fire early warning processing module divides fire information into different grades and sends the grades to a fire grade alarm module; and 4) the fire grade alarm module sends out a fire warning to a user. The power transmission line fire monitoring method provided by the invention solves the problem that due to a satellite monitoring blind area, fire cannot be discovered timely and accurately, improves the efficiency of disaster early warning, and provides a technical guarantee for further disaster emergency treatment.