42 results about "Forest steppe" patented technology

The invention discloses a forest steppe fire risk assessment method and system, and belongs to the technical field of forest steppe fire prevention. The problem of high false alarm and missing report rate caused by lagging fire risk identification, weak multi-source data fusion and insufficient dynamic response in the prior art is solved. According to the technical scheme, the method comprises the following steps: deploying a ground sensing node array to obtain real-time environment data of a grassland region, fusing high-resolution satellite remote sensing and regional weather forecast data, and constructing a space-time aligned risk assessment data cube; establishing a grassland fire risk factor dynamic coupling model, and dynamically allocating factor weights in combination with the adaptive weight decision tree; generating a comprehensive risk index, carrying out nonlinear mapping to five risk levels, and linking a visual engine to generate a dynamic thermodynamic diagram and push the dynamic thermodynamic diagram to a command terminal; the system supports online updating of the model, and weight parameters are automatically optimized based on a new fire event. According to the invention, high-precision, real-time and spatialized evaluation is realized, the early warning capability and prevention and control decision efficiency are improved, and ecological and economic losses are reduced.

The invention discloses forest steppe fire extinguishing barrier foam and a preparation method thereof.The foam is prepared from 5%-20% of a material A, 0.5%-0.8% of a material B, 1.8%-3% of a coagulant and the balance water through a foam generation system; the material A is prepared from 1 to 10 parts of organic aggregate and 100 to 200 parts of inorganic aggregate; the material B is composed of 2-7 parts of a composite surfactant and 1-6 parts of a cross-linking agent; the coagulant is carbon dioxide gas. The inorganic aggregate is condensed under the action of hydrogen ions generated by dissolution of carbon dioxide to form colloidal particles, the colloidal particles are polymerized and crosslinked with the organic aggregate to form a gel skeleton of a three-dimensional network structure, the foam is converted into gel foam, and a heat-insulating and anti-burning barrier layer is formed on the surface of a combustible. The fire extinguishing agent is high in fire extinguishing efficiency, good in heat insulation effect and environment-friendly, and has wide application prospects in forest and grassland fire disasters.

The invention relates to the technical field of forest steppe fire emergency command, and discloses a forest steppe fire comprehensive monitoring and emergency command method and system. The method comprises the following steps: acquiring multi-source monitoring data of a satellite, an unmanned aerial vehicle and a ground sensor, and constructing a fire scene multi-dimensional feature vector through cooperative training and feature fusion; inputting the feature vectors into a physical simulation model to generate fire scene spreading speed and temperature gradient data; analyzing a terrain obstacle coefficient based on the spreading speed data and generating a helicopter no-fly zone coordinate and a passing attenuation factor; and solving and outputting a rescue unit deployment instruction through the scheduling matrix, and projecting a holographic image by using an augmented reality terminal to realize dynamic closed-loop feedback. Through deep fusion of a physical mechanism and reinforcement learning, the problem of separation of traditional fire prediction and resource scheduling is solved, intelligent decision-making of fire accurate prediction and emergency response is realized, and the accuracy and timeliness of fire prevention and control are remarkably improved.

The application provides a forest and grassland fire early identification and positioning method based on infrared thermal imaging and visible light fusion, and belongs to the technical field of forest and grassland resource protection and ecological safety monitoring. The method comprises the following steps: synchronously collecting infrared and visible light images and recording the space-time information of a monitoring platform; performing pixel-level registration on the two images; extracting a thermal anomaly suspected area from the infrared image based on a dynamic background temperature field, and extracting a smoke suspected area from the visible light image based on color, texture and motion features; performing spatial correlation analysis on the suspected areas extracted from the two channels, and combining the area growth rate and temperature rise rate of continuous multiple frames to construct a fire evolution model to confirm a fire point; calculating the three-dimensional geographic coordinates of the fire point based on the photogrammetry collinear equation and a digital elevation model; and generating and outputting alarm information containing the three-dimensional coordinates and fire intensity. The application realizes early and accurate identification and positioning of forest and grassland fires, and significantly reduces the false alarm rate.

The application provides a kind of Internet of Things empowerment's unmanned plane global inspection data management method and system, it is related to fire danger monitoring technical field, the method includes: when determining as high fire danger grade, corresponding unmanned plane inspection task is generated according to the position and range of early warning area, unmanned plane inspection terminal is controlled from unmanned plane airport autonomous take-off, flies to target early warning area according to preset inspection route and real-time collection fire-related data, correlation analysis is carried out to inspection data, fire danger factor data and fire danger grade evaluation data, fire development trend is deduced through intelligent analysis algorithm, and inspection report and decision suggestion are generated.The application not only improves the accuracy and response efficiency of forest grassland fire danger early warning, but also realizes the whole-process response closed loop from fire danger monitoring and early warning to fire comprehensive analysis and disposal.

The invention provides an airborne comprehensive management system and method applied to a fire extinguishing medium putting platform. The system comprises an outer part system, a photoelectric operation handle, input equipment, a comprehensive management computer, data recording equipment and display equipment, the outer part system is used for acquiring real-time data of the airplane in a fire extinguishing medium putting task; the photoelectric operation handle is used for determining a shooting control instruction; the input equipment is used for receiving an external operation instruction; the comprehensive management computer is used for determining interface display information according to the state analysis result of each external system and the photoelectric sensing picture; determining a putting parameter according to the external operation instruction, and determining a putting control signal according to the putting parameter; the data recording equipment is used for storing the data; and the display equipment is used for displaying the interface display information. The airborne integrated management system provided by the invention can ensure the operation efficiency in emergency fire extinguishing rescue scenes such as forests, grasslands and mountainous regions.

The invention relates to the technical field of natural resource protection and ecological system management, and discloses a method and a system for constructing a three-dimensional dynamic model of forest grass wet and waste areas based on digital twinning, and the method comprises the steps: obtaining multispectral image data and environment readings of forest, grassland, wetland and desert areas; performing feature data primary processing to obtain vegetation coverage information and environment variable data; performing species distribution boundary labeling to obtain a species distribution boundary; performing pattern correlation analysis to obtain a preliminary relation matrix; if the association strength of the water level parameter and the desertification parameter in the preliminary relation matrix is higher than a preset strength threshold value, calculating a correction coefficient of the water level parameter and the desertification parameter; carrying out weight balance to obtain a balance relation matrix; time sequence deviation detection and stability verification are carried out, and an ecological change simulation framework is determined. According to the method, comprehensive analysis of complex ecological systems such as forests, grasslands, wetlands and deserts can be realized, and dynamic monitoring and protection are carried out.

The invention relates to a forest steppe combustible moisture content detection method, and relates to the field of combustible moisture content detection.The forest steppe combustible moisture content detection method comprises the steps that a combustible sample to be detected is weighed and then put into a container, and the container is put into a high-low temperature test box; setting the temperature and humidity of a high-low temperature test box and the wind speed of an airflow generator; acquiring atmospheric humidity, atmospheric temperature and wind speed for recording weather elements; adding quantitative water into the container, and recording the volume of the added water and the hygrometer value of the combustible; dividing the collected data set into a training set, a verification set and a test set; calculating input parameters by using a neural network, and adjusting the input parameters to receive atmospheric temperature, humidity, wind speed and combustible humidity parameters as input; a training set is used for training a model, hyper-parameters of the model are adjusted through a verification set, an optimization algorithm is utilized, network weight is updated, an error between a predicted value and the actual moisture content is minimized, and the problem that the moisture content of the combustible is not accurately measured is solved.

The application discloses a forest and grassland fire smoke and fire point simultaneous detection method. The method obtains visible light and infrared band images of a target area, registers and synthesizes into multi-band synthetic data; the data is input into a pre-trained multi-modal smoke and fire simultaneous detection network for feature extraction, the network adopts a feature fidelity down-sampling module containing a fixed kernel low-pass filter and average pooling during down-sampling, and is combined with a cross-layer connected background suppression and smoke and fire focusing module, a multi-scale smoke and fire shape perception module and a smoke and fire space information rearrangement amplification module for joint processing; finally, according to the feature channel set, the smoke and the fire point area are respectively located, and a fire monitoring distribution map is generated by superposition. The application realizes the simultaneous detection and mutual verification of multi-modal features of smoke and fire, effectively overcomes the loss problem of small fire points and smoke plume details, and improves the accuracy of early fire warning.

The application relates to a forest and grassland fire risk intelligent early warning method, system, device and medium. The method comprises the following steps: acquiring meteorological data and combustible moisture content and other multi-source heterogeneous data of a target area; extracting and fusing meteorological features, terrain features and vegetation features to form fire risk feature data; performing grid processing and weighted calculation on the feature data to obtain a real-time fire risk index and perform grade mapping, and combining historical data and weather forecasts to perform timing prediction to obtain a future fire risk grade; automatically identifying a high-risk area based on an evaluation result to generate an analysis report containing risk distribution and prevention measure suggestions; and matching an early warning template according to an analysis result to push precise early warning information to relevant areas and objects. The method can effectively solve the problems of insufficient data fusion, prediction lag and extensive early warning in the traditional early warning mode through multi-source data deep fusion, dynamic evaluation and intelligent analysis, and improve the active prevention capability of forest and grassland fires.

The invention provides a fire extinguishing equipment carrying scheduling method and system based on unmanned aerial vehicle forest grass fire scene perception, and relates to the technical field of fire rescue scheduling. Fire scene perception data returned by an unmanned aerial vehicle is received and analyzed, and a modular scheduling strategy is generated and then is sent to an equipment standardization warehouse through a 5G network; analyzing the modular scheduling strategy to obtain K carrying tasks, then carrying out scheduling personnel distribution, and carrying out modular loading and deployment of equipment by taking the K carrying tasks as constraints to obtain a target scheduling equipment set; the equipment risk monitoring cloud is activated, and a communication link between the equipment set and the equipment risk monitoring cloud is constructed based on the 5G network to carry out operation fault identification and early warning, so that the problems of unreasonable resource configuration, low scheduling efficiency and lagging emergency response in the fire extinguishing scheduling process are solved, and efficient scheduling and dynamic optimization of fire extinguishing resources are realized. And therefore, the response speed and the fire extinguishing efficiency of forest and grassland fire disasters are greatly improved.

The application discloses a kind of based on digital twin and neural network ground-air coordination fire prevention isolation belt opening method, belong to forest and prairie fire prevention technical field.First, collect geographic information, meteorological, fire monitoring data and pre-process, construct digital twin model simulation meteorological element.Then, construct evaluation index system to evaluate fire risk, and divide risk level.Genetic algorithm is used to plan the isolation belt, and the parameter combination is explored through selection, crossover and mutation operation.When ground-air coordination is carried out, the unmanned aerial vehicle guides the construction, the helicopter hoists the materials, and the scheme is adjusted in real time.The fire resistance effect, opening efficiency and cost benefit are evaluated through simulation and actual data, and each link is optimized according to the results.The method accurately evaluates the fire risk, scientifically plans the isolation belt, improves the efficiency of ground-air coordination, realizes dynamic monitoring and optimization, reduces the cost, and provides an effective means for forest and prairie fire prevention and control.

The invention relates to the technical field of biological control, in particular to a forest and grassland pest control device which comprises a box body and a fixing plate, two long-strip-shaped holes are formed in the fixing plate, the box body is slidably connected into the long-strip-shaped holes through two sliding blocks, stirring equipment is installed in the box body, and the stirring equipment is arranged in the fixing plate. The stirring equipment comprises a rack plate, a rotating shaft and stirring rods, the rack plate is slidably connected to the fixing plate and fixedly connected with the sliding block, the rotating shaft is rotatably connected to the side wall of the box body, and the multiple stirring rods are annularly arrayed at the end, away from the rack plate, of the rotating shaft; according to the stirring device, when the stirring rod rotates along with the rotating shaft, a liquid medicine mixture in the box body can be continuously stirred, so that the situation that the purity of liquid medicine in the box body is not uniform due to precipitation of medicine is avoided.

The application provides a forest and grassland fire ground-air cooperative fire extinguishing efficiency evaluation method and system, wherein the method comprises the following steps: acquiring an influence factor system related to ground-air cooperative fire extinguishing evaluation; constructing a scale experiment system based on the influence factor system and obtaining a mapping relationship between prototype parameters and scale parameters; acquiring a range of scale experiment parameters based on the mapping relationship and multiple level grades of the influence factors; obtaining multiple experiment parameter combinations based on the range of the scale experiment parameters; acquiring sensor data through ground-air cooperative fire extinguishing scale experiments based on the multiple experiment parameter combinations; obtaining multiple key data of each experiment parameter combination based on the sensor data; obtaining fire extinguishing efficiency values corresponding to each experiment parameter combination based on the multiple key data; and obtaining optimal ground-air cooperative fire extinguishing parameter combinations under different fire scenes based on the fire extinguishing efficiency values, which improves the standardization, scientificity and universality of fire extinguishing efficiency evaluation and provides reliable technical support for efficient disposal of forest and grassland fires.

The present application relates to the field of fire fighting technology, in particular to a space-air-ground cooperative intelligent forest and grassland fire fighting robot cluster, which comprises a space-air-ground integrated monitoring unit, a short-range fire extinguishing control unit, a decision-making generation unit, a remote fire extinguishing control unit and an aftereffect evaluation unit. The present application eliminates the monitoring blind area through the mutual complementation of the three monitoring means in the time-space dimension, realizes the full autonomous flight of the fire extinguishing unmanned aerial vehicle in the initial stage and the execution of small-area fire extinguishing by remote bomb launching, and the whole process does not need to enter the dangerous area of the fire field, and the high-cost cluster rocket fire extinguishing system remotely launches the fire extinguishing bomb to execute the out-of-control large-area fire extinguishing, which is conducive to the optimal allocation of tactical resources, avoids excessive damage, makes the combat economy of the whole system reach the best, and on the other hand, adapts to different complex terrains and extreme fire conditions.

The utility model discloses a forest grassland fire danger monitoring system, it includes many energy power module, power management module, environmental monitoring module and communication module. Many energy power module supplies power through solar energy, wind energy and battery cooperation, ensures energy supply stability, power management module includes voltage regulation unit, current distribution unit and energy storage protection unit, realizes the fine management and protection of power supply, environmental monitoring module integrates temperature, humidity and smoke sensor, and real -time collection environmental parameter and generates early warning signal, communication module sends data to remote monitoring center through wireless transmission unit. The utility model has solved the energy supply instability, utilization efficiency low and power management not optimization problem of single power supply mode, has promoted the reliability and environmental adaptability of system.

The utility model relates to the technical field of environment monitoring, and discloses a forest grassland ecological environment monitoring device, which comprises a base, two anemorumbometers and two cameras, knocking plates are fixedly arranged on the top of the base close to the two sides, inserting rods are arranged at the bottom of the base close to the periphery in a penetrating manner, and the inserting rods are connected with the two cameras. A T-shaped vertical rod is fixedly installed in the middle of the top of the base, a rainfall sensor is fixedly installed on the top of the T-shaped vertical rod, a movable block is slidably connected to the periphery of the T-shaped vertical rod, and an adjusting assembly is arranged between the movable block and the T-shaped vertical rod. A threaded rod A in threaded connection in an inner cavity of a threaded pipe A can push a trapezoidal block to move downwards, a plurality of transverse rods can penetrate through inner cavities of adjacent through holes and are transversely inserted into the ground, the stability of inserting rods into the ground can be improved, and then the base can be prevented from inclining.

The invention provides an Internet of Things enabled unmanned aerial vehicle global inspection data management method and system, and relates to the technical field of fire danger monitoring, and the method comprises the steps: generating a corresponding unmanned aerial vehicle inspection task according to the position and range of an early warning region when a high fire danger level is determined, and controlling an unmanned aerial vehicle inspection terminal to autonomously take off from an unmanned aerial vehicle airport, and flying to a target early warning area according to a preset inspection route and collecting fire related data in real time, performing association analysis on the inspection data, the fire factor data and the fire level evaluation data, deducing a fire development trend through an intelligent analysis algorithm, and generating an inspection report and a decision suggestion. According to the invention, the accuracy and response efficiency of forest grassland fire early warning are improved, and a whole-process response closed loop from fire monitoring and early warning to comprehensive fire research and judgment treatment is realized.

The application discloses a forest and grassland fire prevention comprehensive analysis and judgment monitoring and early warning method and related equipment. The method comprises the following steps: acquiring monitoring plan preset information and specific monitoring point information to perform monitoring; based on a monitoring standard database and a weight strategy, real-time analysis and judgment are performed, and monitoring and weighted data are written into a monitoring plan log; the monitoring standard database is determined based on sensor information and remote sensing data source data; the monitoring plan log is acquired in real time, the weighted values in the monitoring data of the monitoring points meeting the plan log are grouped and summed, and are sorted in descending order to determine a fire prevention key monitoring area. The method can solve the problems that the early fire point state cannot be captured, the best fire extinguishing opportunity may be missed, a single remote sensing data needs to be interpreted and analyzed by professionals, needs to be judged by professionals, there is a risk of misjudgment, the monitoring range is limited, the influence of the terrain is large, and complete fire characteristics and environmental background cannot be provided.

The invention provides a forest steppe fire ground-air cooperative fire extinguishing efficiency evaluation method and system, and the method comprises the steps: obtaining an influence factor system related to ground-air cooperative fire extinguishing evaluation; constructing a reduced scale experiment system based on the influence factor system, obtaining a mapping relation between the prototype parameters and reduced scale parameters, and obtaining a range of the reduced scale experiment parameters based on the mapping relation and the plurality of level grades of the influence factors; obtaining a plurality of experimental parameter combinations based on the range of the reduced scale experimental parameters, and performing a ground-air cooperative fire extinguishing reduced scale experiment based on the plurality of experimental parameter combinations to obtain sensor data; obtaining a plurality of key data of each experimental parameter combination based on the sensor data, and obtaining a fire extinguishing efficiency value corresponding to each experimental parameter combination based on the plurality of key data; the optimal ground-air cooperative fire extinguishing parameter combination in different fire scenes is obtained based on the fire extinguishing efficiency value, standardization, scientificity and universality of fire extinguishing efficiency evaluation are improved, and reliable technical support is provided for efficient treatment of forest steppe fire.

The embodiment of the utility model provides a forest grassland fireproof flame-retardant device which comprises a barrel-shaped telescopic firewall, and the barrel-shaped telescopic firewall comprises annular supporting frameworks, a first flexible connecting assembly, a first ground fixing assembly, first fireproof cloth, second fireproof cloth and third fireproof cloth. The fire-proof and flame-retardant device for the forest and the grassland can form a plurality of liftable independent supporting positions with the ground, and the contact area between the bottom of the annular supporting framework and the ground is small, so that the fire-proof and flame-retardant device for the forest and the grassland is easy to adapt to uneven ground environments such as grassland, dunes, deserts, bushes and forest lands, and good support is formed with the ground. Two fire extinguishing modes of suffocation and blocking are adopted for fire prevention and flame retardance, and fire prevention and flame retardance can be efficiently achieved. Due to the fact that the barrel-shaped telescopic firewall is light in weight, small in size and foldable, the firewall can be carried by a single soldier and can be rapidly erected, moved and recycled, and the fireproof and flame-retardant effects of the forest steppe fireproof and flame-retardant device are effectively improved.

The invention discloses a lightning stroke forest fire risk zoning method fused with a soil moisture factor, and relates to the field of forest fire prevention and control and geographic information application cross technology, and the method comprises the steps: multi-source data collection and preprocessing, soil moisture factor quantification and grading, dynamic weight calculation model construction, and comprehensive risk calculation and zoning. And real-time updating and early warning are carried out. Compared with the prior art, the method has the advantages that a complete lightning stroke forest fire risk zoning system is built, the three technical difficulties of a soil moisture factor quantification method, a dynamic weight adaptive algorithm and multi-source data real-time fusion are mainly broken through, and it is ensured that the zoning result is highly matched with the actual risk; the method is suitable for various forest areas with high lightning stroke incidence, inflammable vegetation and clear dry and wet seasons, can accurately divide the risk levels of forest fires caused by lightning strokes under different time-space dimensions, and provides scientific data support and technical guarantee for forest steppe fire prevention and extinguishing command decision, resource allocation and prevention and control measure deployment.

The invention provides a natural ecosystem index measurement method and system based on function and benefit analysis, and relates to the technical field of natural ecosystem index measurement. According to the method, basic units are divided according to function types of forest, grassland, wetland and desert ecological systems, index threshold intervals of ecological, production and life functions are calculated respectively, equivalent discounting is performed through function conversion coefficients, and an index potential measurement result is output. According to the method, multifunctional coordination measurement is realized, and the defects of one-sided index setting and lack of systematicness and resource constraint connection in the existing method are overcome.

The utility model discloses a forestry fireproof movable blocking device which comprises a frame and a fixed plate, a rotating assembly is installed on the inner side of the frame, the rotating assembly comprises a rotating shaft and a movable plate, a fixed assembly is installed at the bottom of the frame and comprises an inserting opening and an inserting rod, a ground inserting assembly is installed on the inserting rod, and the movable plate is installed on the inserting opening. The ground inserting assembly comprises a top plate and pointed cones, splicing assemblies are installed on the two sides of the frame, each splicing assembly comprises a connecting column and a connecting sleeve, according to the forestry fireproof movable blocking device, the top plate can be treaded downwards, so that the top plate drives the inserting rods to penetrate through the inserting openings and be inserted into the ground through the pointed cones, the frame is fixed, a fixing tool does not need to be carried, and the forestry fireproof movable blocking device is convenient to use. Equipment can be conveniently and rapidly installed and fixed, horizontal and vertical splicing work of the device is facilitated, the fireproof barrier height can be increased, gaps between the frames can be avoided, the fireproof barrier effect is improved, and the device is suitable for barrier and fireproof use in places such as forests, grasslands and gardens.

This invention relates to the field of fire alarm technology, and discloses a method, device, equipment, and storage medium for alarming weak forest and grassland fires. It calculates the instantaneous ground surface temperature baseline field, reads the thermal infrared spectral data of the target satellite image, inverts to obtain the first instantaneous ground surface temperature field, converts it into the second instantaneous ground surface temperature field, calculates the sub-pixel thermal increment image, and uses the first and second band images from the target satellite image to perform false-color image synthesis to generate a weak forest and grassland fire alarm signal. Therefore, it proposes a method for rapidly identifying initial and small forest and grassland fires using thermal radiation increment images. By constructing a ground instantaneous thermal radiation brightness temperature baseline field synchronized with remote sensing, and reconstructing the sub-pixel thermal increment image, based on the thermal increment abruptness characteristics and the thermal steady-state characteristics of the forest and grassland distribution area, it characterizes and identifies early forest fires, effectively improving the monitoring efficiency and accuracy of fire points and enhancing the technological level of forest fire monitoring.

The invention provides a field water source device for forest steppe fire suppression. The field water source device is suitable for areas without natural water sources or with limited water supply conditions. The device is arranged along the height difference of a mountain and comprises a condensing tower, a heat conduction agent circulating system, a multi-stage heat exchange area, a water diversion structure, an underground floating roof water storage tank, an energy supply control system and a fire pump station. And the heat conduction agent exchanges heat with air in each stage of heat exchange area to promote water vapor condensation, and is guided into the low-level water storage tank through the diversion canal. The water storage tank is provided with a floating roof structure, a heat preservation system and a sediment cleaning function, and has the capacity of automatically supplementing water to the high-level water tank. The control system can dispatch operation modes according to parameters such as temperature and water level, and intelligent switching of condensation, heat preservation and fire-fighting water supply is achieved. The device is modularized in structure, adapts to various terrains and has the continuous water supply and emergency fire extinguishing capacity.

The utility model relates to forest and steppe fire prevention technical field, concretely is forest and steppe fire prevention isolation belt automatic sprinkler, including sprinkling mechanism, and the sprinkling mechanism includes base and riser, and the riser top is equipped with a plurality of spray heads, and the periphery of riser bottom is equipped with the guide sleeve, and the guide sleeve is equipped with the movable sleeve pipe, and the base is provided with the opening and closing mechanism, and the opening and closing mechanism includes fixed base and a plurality of gear, and the movable sleeve pipe is provided with a plurality of gear slots, and the gear is engaged with the gear slot. The forest and steppe fire prevention isolation belt automatic sprinkler, the movable sleeve pipe set up can be along the riser axial movement, when the device does not work, the movable sleeve pipe moves up and abuts with the end plate, can store the spray head in the movable sleeve pipe, forms effective protection to the spray head, reduces the influence of sand, sunshine, animal and other factors in the forest and steppe outdoor environment to the spray head, guarantees the normal use of spray head when needing work.