444 results about "Potential energy" patented technology

The invention discloses an intelligent prediction method for fatigue damage evolution of an aero-elastic sheet based on digital twinning, and the method comprises the following steps: S1, constructing a finite element model, carrying out the modal calibration, and building a digital twinning model; s2, acquiring real-time monitoring data; s3, constructing a crack-induced potential energy tensor field to obtain a crack development potential energy probability distribution diagram; s4, generating a probability prediction map by adopting a potential energy driven map evolution coupling algorithm; s5, constructing a topological damage mapping function, and predicting a dynamic evolution process of topological damage along with load time; s6, applying a time folding algorithm in the dynamic evolution process to obtain a fatigue state submerged space representation; and S7, inverting the topological damage state of the current structure based on the contrast twinborn variational self-encoding network, updating the digital twinborn model, and finally outputting the structural damage evolution trend. According to the method, digital twinning and graph evolution algorithms are fused, and intelligent prediction of the fatigue damage of the aero-elastic sheet is realized.

The invention relates to an optimization processing method for a streaming data dynamic window, and the method comprises the steps: taking streaming data as a dynamic system, and calculating the data disturbance energy at each moment on a time axis; constructing a window trigger point according to the potential energy curve; when the trigger potential locally reaches a peak value or the trend changes, adaptively dividing the window; the starting boundary and the ending boundary of each window are defined as elastic intervals; before the window slides or is closed, window boundary self-adjustment and complementation are carried out according to compensatory analysis of subsequent data streams; taking a large window as a container, and dividing sub-segments according to data density change; partial states are shared among the sub-windows, and fine-grained analysis including anomaly detection and instantaneous peak value recognition is executed; introducing a life cycle termination relationship driven by an entropy threshold: when the window activeness is lower than the entropy threshold, triggering state compression or early release; the accuracy and dynamics of window division are realized, the response capability of a system to data fluctuation and burst is enhanced, and the elasticity and fault-tolerant capability of window boundaries are improved.

The invention provides an elevation map path planning method and system based on a terrain adaptive potential energy field, and relates to the technical field of path planning. Comprising the steps of calculating the gradient and roughness of the position of an intelligent agent, setting a terrain adaptive gain, dynamically adjusting the gradient and roughness, and obtaining a terrain adaptive repulsive force field and a composite potential energy field in combination with a basic repulsive force field; determining the motion direction of the agent based on the composite potential energy field, and determining the next position of the agent; in the process that the intelligent agent moves to the next position, whether local re-planning needs to be carried out on the next position of the intelligent agent or not is judged based on a preset environment change judgment rule; and when re-planning is needed, recalculating the terrain adaptive repulsive force field and the dynamic obstacle repulsive force field, updating the composite potential energy field, and re-determining the next position of the intelligent body. According to the invention, the terrain can be effectively sensed, the planning strategy is adaptively adjusted, and high precision, high efficiency and strong robustness are considered.

The invention relates to the technical field of wind-solar storage power station operation control, and discloses a wind-solar storage multi-energy complementary power station cooperative operation method and system. The method comprises the following steps: constructing a wind-light fluctuation rate phase plane, defining a coupling stable elliptical region and generating a multi-source coupling state tag; an energy storage response performance plane is constructed, a dynamic dead zone threshold parameter is calculated, a dynamic respiration hexagonal boundary is established, and the penetration depth is calculated to generate an energy storage effective action instruction; and constructing a virtual energy gravitational potential energy field by utilizing an energy storage effective action instruction, calculating virtual potential energy heights of independent physical nodes and nonlinear flow resistance characteristics of a virtual energy transmission pipeline, and analyzing a virtual potential energy height difference and a virtual energy flow velocity to obtain a final power distribution scheme. Precise classification of fluctuation modes is achieved through geometric topology, the dynamic breathing hexagon is utilized to consider battery life and stability control requirements, the problem of lagging of multi-target optimization calculation is solved based on the physics field theory, and the operation efficiency of a power station and the friendliness of a power grid are remarkably improved.

The invention discloses an injection-production regulation imbalance quantitative diagnosis method based on fluid potential energy, and the method comprises the steps: extracting a streamline track space coordinate sequence and corresponding point oil reservoir parameters based on a dynamic permeability field, a pressure field and an injection-production streamline field; constructing a three-dimensional fluid potential energy field model in the injection-production unit, and dividing dominant seepage, a retention zone and a transition zone based on the injection-production unit through potential energy gradient tensor; establishing a seepage potential index LS by taking the flow line penetrating pore volume as a stability weighting factor and combining the potential energy gradient intensity; on the basis of LS sorting, a potential energy-volume two-factor accumulation curve is constructed, the development non-equilibrium degree is represented through curve form parameterization, and the envelope area of the accumulation curve is calculated and used for representing the oil reservoir flow field development non-equilibrium degree and the development effect of each type of injection-production unit. According to the method, fluid potential energy and a two-factor cumulative distribution concept are introduced into computational logic, and unified and quantitative characterization of an oil reservoir flow field and an injection-production unit is realized in combination with a seepage mechanism of the injection-production unit.

The invention belongs to the technical field of solar wings, and discloses a passive unfolding mechanism which comprises a bearing part, a rotating shaft, a curling arm and an abutting assembly. The rotating shaft is rotationally arranged on the bearing piece. One end of the curling arm is fixed to the rotating shaft, the curling arm can be wound to the rotating shaft, elastic potential energy is stored after the curling arm is wound, and the elastic potential energy is used for driving the rotating shaft to rotate so as to unfold the curling arm. The abutting assembly is arranged on the bearing piece, and the abutting assembly is configured to abut against the curling arm when the curling arm is unfolded, so that resistance is applied to the curling arm. According to the passive unfolding mechanism provided by the invention, the curling arm is wound through the rotating shaft, and the curling arm can be unfolded or folded by rotating the rotating shaft, so that the solar wing adopting the unfolding mechanism is simple in overall structure, small in size and capable of meeting the space requirement of a small spacecraft. The passive unfolding mechanism provided by the invention does not need to be powered by a motor, and is simple in structure and low in use cost.

The invention belongs to the technical field of underground engineering, and particularly relates to an evaluation method for underlying shield tunnel deformation caused by foundation pit block excavation, a paraboloid type pit bottom upheaval curved surface is adopted to express an actual excavation upheaval form, integral analysis is performed in combination with an image source method, and soil upheaval displacement of each point on a shield tunnel axis is obtained; according to the method, the longitudinal deformation of the shield structure is solved through Fourier expansion and the minimum potential energy principle, and the method is suitable for tunnel deformation prediction under complex working conditions such as oblique penetration, special-shaped foundation pits and block construction and has good engineering adaptability and theoretical guidance value.

The invention relates to the technical field of transformers, in particular to a transformer with a high-frequency magnetic material. Comprising a transformer body, a lower base and an upper base, a cooling fan is arranged on the upper base on one side of the transformer body, a liquid cooling system is arranged on the transformer body, and a trigger mechanism is arranged at the top of the transformer body and used for controlling starting and stopping of the cooling fan and the liquid cooling system according to temperature changes in the transformer body. Under the action of the bent end and the first wedge block, the bent end slides along the inclined plane of the first wedge block, the air inducing plates on the two sides rotate clockwise and anticlockwise respectively and overcome the elastic potential energy of the reset spring, and as the rotation amplitude of the air inducing plates is increased, the distance between the air flow channels between the air inducing plates and the transformer body is reduced, and the air flow is discharged. And airflow flowing through the airflow channel can quickly pass through the airflow channel, so that more heat on the leeside can be taken away by utilizing the pressure difference, and heat dissipation on the leeside of the transformer body is facilitated.

A trampoline includes an elastic plate and a supporting unit, wherein the elastic plate includes a first end and a second end, and a portion, located between the first end and the second end, of the elastic plate is an elastic energy accumulator; the supporting unit includes supporting bodies arranged at the first end and the second end of the elastic plate, and the supporting bodies are capable of supporting the elastic plate and tensioning the first end and the second end of the elastic plate; during bending deformation of the elastic plate, the first end generates a symmetrical turning angle change with respect to the second end; during deformation recovering of the elastic plate, the supporting bodies apply reset force to the first end and the second end by utilizing the potential energy.

The invention relates to the technical field of dam safety monitoring, and discloses an osmotic pressure monitoring data processing method and system for a reservoir dam, and the method comprises the following steps: obtaining osmotic pressure monitoring data and a reservoir water level; based on the data, reconstructing and carrying out normalization processing to obtain a normalized potential energy field; constructing a topological network based on the normalized potential energy field, and calculating a seepage field topological entropy capable of representing the overall structural characteristics of the seepage field; recognizing a hydraulic step event triggered by the rapid change of the water level of the reservoir, collecting a topological entropy response curve of the seepage field under the event, and extracting a real-time response feature vector from the curve; the invention further provides a system for executing the method. According to the method, severe data fluctuation caused by normal working conditions (such as water level sudden change) and early weak abnormity caused by internal structural diseases can be effectively distinguished, and the sensitivity and accuracy of seepage state abnormity diagnosis are remarkably improved.

The invention relates to a near space non-uniform atmospheric refraction angle calculation method, which comprises the following steps: acquiring a deflection angle of light in the atmosphere, and obtaining a refraction angle model; determining atmospheric density change, obtaining a Boltzmann statistical model, and further obtaining a Boltzmann energy distribution model; determining molecular kinetic energy and potential energy, substituting the molecular kinetic energy and potential energy into a Boltzmann energy distribution model to obtain the atmospheric molecular number density away from the geocenter, and determining the change rule of the atmospheric molecular number density along with the altitude and the atmospheric temperature according to the atmospheric molecular number density away from the geocenter; acquiring a transmission path from the observation height to the top of the atmospheric layer, and acquiring the atmospheric temperature and atmospheric pressure at the observation height by combining the change rule of the atmospheric molecular number density along with the altitude and the atmospheric temperature; and inputting the atmospheric temperature and the atmospheric pressure at the observation height into an Elden refractive index model to obtain a refractive index value under a corresponding radiation condition, and inputting the refractive index value into a refraction angle model to obtain a refraction angle.

The invention discloses an elastic material hydrofoil fluid-solid coupling cavitation erosion forecasting method based on a potential energy theory, and belongs to the field of computational fluid mechanics and cavitation. The implementation method comprises the following steps: simulating the cavitation of the hydrofoil made of the elastic material by using a tight coupling algorithm to obtain the pressure and steam volume fraction distribution of the surface of the hydrofoil; a steam volume fraction distribution based on pressure; constructing an erosion index correction factor F for representing the bending torsional deformation degree of the elastic material hydrofoil to correct the cavitation erosion index represented by the pressure wave power density; the cavitation erosion indexes larger than a threshold value are screened out, and the final cavitation erosion risk index is a quotient after superposition of the cavitation erosion indexes; the corrected cavitation erosion index data are interpolated into RGB color data, the data serve as a geometric structure model of a fourth-dimensional mapping elastic material hydrofoil, and the corrected cavitation erosion index numerical value is represented through color change. The corrected cavitation erosion index can more accurately forecast a cavitation erosion risk part on the surface of the hydrofoil made of the elastic material.

The invention discloses a drilling track real-time monitoring and intelligent deviation correction control method, device and equipment, and aims to construct a multi-sensor fusion drill attitude measurement technology to realize high-precision track deviation detection and error compensation; performing potential energy accumulation on the negative deviation component to generate a deviation energy pool by adopting a positive and negative deviation decomposition technology of a track deviation vector; establishing a chaos control band framework, analyzing and identifying a stable boundary and an unstable boundary through energy fluctuation characteristics, and extracting an optimal response interval to guide deviation correction control; determining an active deviation rectification vector, and controlling a hydraulic cylinder to generate deflection torque through a composite deviation rectification instruction; an oscillation feature extraction technology is introduced, a stability index is generated based on system oscillation parameters and position mapping of a chaos control band, a chaos edge control field is constructed, and precise regulation and control of complex nonlinear drilling dynamics are achieved; the energy conversion efficiency is obtained and the chaos edge control field is combined to generate a real-time deviation correction control quantity, so that a closed-loop intelligent deviation correction control loop is formed.

The invention provides a method and a device for determining hyper-parameters of a potential energy model based on a graph neural network. The method comprises the following steps: acquiring a key sample from a plurality of samples of a data set for molecular dynamics simulation; determining a truncation radius configuration of the potential energy model based on the key sample, the truncation radius configuration including a truncation radius of each element combination; training of the potential energy model is performed based on the key sample and the truncation radius configuration, and the truncation radius configuration is adjusted based on an inference result of the trained potential energy model, where an input of the potential energy model is an atomic graph determined based on the key sample and the truncation radius configuration, and an output of the potential energy model is an atomic graph determined based on the key sample and the truncation radius configuration. The output of the potential energy model comprises energy parameters and force parameters of atoms.

The invention relates to the technical field of meteorological monitoring, in particular to a satellite fusion internet-of-things meteorological early warning issuing method, which comprises the following steps of: firstly, acquiring data of a stationary satellite, a low-orbit satellite, millimeter wave communication, ground optics and an electric field, and calibrating and registering to form a unified observation set; a multi-modal diagram is constructed, the optimal transmission mapping meeting mass conservation is obtained through quantum annealing, and three-dimensional wind speed, specific humidity and temperature fields are reconstructed to generate potential energy tensors; establishing a potential energy function based on the potential energy tensor, and judging convection nucleation through Hamiltonian Monte Carlo sampling minimum action path; a coring event is packaged into an early warning message, a signature and a delay function timestamp are added, then the early warning message is written into a right and interest proof block chain, a named data network controlled by reinforcement learning is used for self-adaptive copying and distribution, and meanwhile, an action quantity threshold value and a regularization coefficient are dynamically adjusted. According to the invention, minute-level advance, second-level issuing and whole-process traceable meteorological early warning are realized.

The invention discloses a stern shaft sealing device for a ship, and relates to the technical field of ship equipment. The device comprises a tail shaft barrel, a tail shaft, a sediment intercepting assembly, a first sealing unit and a pipeline system. And a sealing structure is arranged in a gap between the stern shaft and the stern shaft barrel. The first sealing unit comprises four sealing leather cups which are arranged in the axial direction and divide the interval into a first installation cavity, a gas cavity, a second installation cavity and a cooling liquid cavity, and the pipeline system is communicated with the gas cavity and the cooling liquid cavity so as to maintain pressure. The core is a buffer structure in the first mounting cavity and the second mounting cavity, and the buffer structure comprises a sealing ferrule, an adjusting assembly and an abutting assembly. When the seawater pressure suddenly increases, the buffer structure converts impact kinetic energy into elastic potential energy and gas compression potential energy through elastic deformation, pressure conduction and the like, pressure buffering is achieved, meanwhile, the sealing performance is dynamically enhanced, seawater backflow is prevented, the ship navigation safety is guaranteed, and the reliability and stability of the sealing device are improved.

The invention discloses a composite energy storage device for peak-average voltage stabilization of an electric power system, and belongs to the technical field of design and construction of energy storage engineering structures. The invention provides the composite energy storage device for peak-average voltage stabilization of the power system, which can effectively improve the energy storage density and the conversion efficiency and obviously reduce the investment cost. The composite energy storage device comprises a gravitational potential energy storage system, a pressure potential energy storage system and a heat energy storage system, the composite energy storage device further comprises a multi-energy coupling energy storage mechanism, and the gravitational potential energy storage system and the pressure potential energy storage system are connected into a whole through the multi-energy coupling energy storage mechanism. The heat energy storage system is connected with the multi-energy coupling energy storage mechanism under the cooperation of the pressure potential energy storage system; in the operation process of the electric power system, surplus electric energy of the electric power system in the peak bottom electricity utilization period is converted into mechanical energy to be stored in the composite energy storage device, and the mechanical energy stored in the composite energy storage device in the peak top electricity utilization period is converted into electric energy to be supplied.

The invention discloses a tethered satellite system dynamics modeling method considering perturbation factors. The tethered satellite system dynamics modeling method comprises the steps that a geocentric coordinate system, an orbital coordinate system of a Kepler orbit where a tethered satellite system is located and a body coordinate system of a unit satellite are established; according to the movement of the centroid of the tethered satellite system on the orbit, the generalized coordinates are the distance from the centroid of the system to the earth center and the true anomaly of the orbit, the Lagrange function of the centroid of the system is obtained; according to the movement of the unit star relative to the centroid, the generalized coordinates are the distance between the unit star and the centroid, the relative first rotation angle and the relative second rotation angle, the relative Lagrange function of the unit star is obtained; comprehensively considering perturbation factors to obtain non-spherical earth, third gravitational force and solar pressure perturbation potential energy; establishing a system kinetic equation considering comprehensive perturbation factors; and obtaining a complete Lagrange equation of the tethered satellite system. The error problem caused by the fact that the master satellite directly serves as the mass point of the system and the influence of comprehensive perturbation on system motion is not considered is solved, and the number of the slave satellites is not limited.

The invention belongs to the technical field of road engineering roadbed treatment, and particularly relates to a riprap silt squeezing depth calculation method based on energy conservation. The calculation method comprises the following steps: S1, assuming a simplified calculation working condition, and respectively calculating gravitational potential energy of block stones and soil blocks by taking the block stones and wedge-shaped soil blocks at the lower part after the block stones enter a soil body as research objects; s2, calculating resistance work and buoyancy work of the block stone in water, side soil shear work of the block stone when the block stone moves in the sludge, and soil pressure and shear work of the soil block; s3, establishing a balance equation of the total potential energy and the total resistance acting; and S4, calculating the riprap silt squeezing depth according to the equation. According to the method, the problem of establishment of the balance equation in the overwater riprap process is solved by utilizing the principle of conservation of energy, the design difficulty of engineers and the extra workload of parameter valuing are effectively reduced on the basis of ensuring the calculation requirement, and the scheme decision-making efficiency is favorably improved.

The invention relates to the technical field of composite material structure dynamics analysis, and provides a method and system for predicting the inherent frequency of a three-phase functionally graded composite material conical plate, and the method comprises the steps: employing an improved Halpin-Tsai model to calculate the equivalent parameters of a GPL-containing two-phase composite matrix, solving the equivalent parameters of a three-phase composite layer, and calculating the inherent frequency of the three-phase composite material conical plate. The method comprises the following steps: constructing a nonlinear geometrical relationship between a displacement field and a strain field, calculating a stiffness coefficient of each layer, constructing kinetic energy of the three-phase composite material conical plate, calculating an energy coefficient according to the stiffness coefficient of each layer, constructing potential energy of the conical plate according to the energy coefficient, and constructing a modal displacement function by adopting a Chebyshev polynomial and a boundary function. And establishing a characteristic equation based on a minimum potential energy principle and solving to obtain the inherent frequency of the three-phase composite material conical plate. According to the method, efficient calculation of the inherent frequency of the three-phase composite material conical plate is achieved, and the reliability and engineering application value of structural dynamics analysis are remarkably improved.

The invention provides a potential energy and electric energy conversion energy storage system grid-connected voltage stability influence assessment method, and belongs to the technical field of electric digital data processing. The method comprises the following steps: firstly, collecting high-precision voltage data to construct a monitoring matrix, and decomposing the monitoring matrix to obtain a stable data matrix and a fluctuation data matrix; carrying out spectrum analysis on the fluctuation data, and extracting and optimizing three types of characteristics of frequency distribution, amplitude change and phase deviation; a feature correlation analysis model is constructed to identify key influence factors and contribution degrees, an evaluation index system is established, and grid-connected voltage stability indexes are calculated; inputting the test data into a pre-trained voltage stability evaluation model; and finally, an influence evaluation matrix is constructed based on a prediction result, the influence degree is quantitatively evaluated from three dimensions of system safety, electric energy quality and power grid stability, and the technical problem that the influence evaluation on the grid-connected voltage stability of the potential energy and electric energy conversion energy storage system is not accurate enough in the prior art is solved.

The invention belongs to the technical field of measurement and data processing, and particularly relates to a slope stability prediction method based on deep learning, and the method comprises the steps: 1, carrying out the periodic scanning of the surface of a target slope through a high-precision laser radar, and obtaining point cloud data; 2, according to the geological data and hydro meteorological data of the slope area corresponding to each rock mass unit, the expansion potential energy of the slope area corresponding to each rock mass unit at each time in the water absorption process is calculated; 3, inputting the mean value output as an input quantity into a pre-trained deep learning auto-encoder, and outputting a potential variable in combination with variance output; and calculating a difference value between the potential variable and the mean value output, and carrying out ratio budgeting on the difference value and a preset basic threshold value to obtain the instability probability of the slope area corresponding to each rock mass unit. The method can dynamically respond to environmental changes, provides a stability evaluation result in real time, and has high prediction precision, real-time performance and adaptability.

The invention discloses an autonomous ship meeting collision avoidance method based on a COLREG rule, and relates to the field of autonomous ship control, and the method comprises the steps: obtaining the real-time navigation parameters of a ship and other ships in a detection range; based on a COLREG rule, dividing avoidance responsibilities of the ship and other ships; according to the real-time navigation parameters of the ship and other ships and the avoidance responsibility of the ship and other ships, the repulsive force potential energy of other ships to the ship when the ship sails along the target route is determined; and according to the gravitational potential energy of the navigation target point of the target route to the ship and the repulsive potential energy of all other ships to the ship, comprehensive potential energy borne by the ship is obtained through calculation, the target navigational speed and the target rudder angle are determined in combination with the COLREG rule, and the ship is controlled to carry out collision-prevention navigation. According to the method, real-time monitoring is carried out in the whole meeting process, automatic collision avoidance is completed, the collision avoidance problem under all meeting situations can be solved, and the safety and stability of the autonomous ship are effectively improved.

A simulator includes a processing unit that meshes and models a soft object into a plurality of polyhedrons, in which particles are arranged at respective vertices, such that the soft object includes a plurality of particles and calculates, with conditions for minimizing potential energy density of the modeled polyhedrons as constraints, from a distance among the plurality of particles in the polyhedrons and mass of the plurality of particles, deformation of the soft object to which an external force is applied.

The invention discloses a magnetic performance dynamic compensation method of a magnetic latching relay suitable for a wide temperature range environment, and relates to the field of magnetic performance dynamic compensation, and the method comprises the steps: obtaining the real-time temperature data and real-time load voltage data of the relay, outputting a basic driving energy parameter, and obtaining the real-time temperature data of the relay based on the real-time temperature data; constructing a three-dimensional rigidity potential energy curved surface dimension reduction solution equivalent rigidity coefficient, predicting mechanical collision kinetic energy at the moment that a movable contact is closed, generating a critical rebound energy threshold value, constructing an ideal convergence track meeting physical deceleration constraint, executing inverse dynamics solution, generating a composite step driving waveform instruction, and performing dynamic deformation on the composite step driving waveform instruction. A relay coil is driven by executing the composite step driving waveform instruction, the motion state vector of a movable iron core is calculated in real time through a flux linkage observer, mechanical rebound is recognized, active magnetic damping adjustment is triggered, the movable iron core is forcibly clamped in a magnetic maintaining balance area, a movable contact can be forcibly locked at a conduction position, and the magnetic field is controlled. And a false pull-in fault is thoroughly avoided.

The invention relates to a sample collection auxiliary device for groundwater resource investigation, which belongs to the technical field of groundwater sample collection, is configured and connected to the bottom of a sampler, and comprises a tank body vertically arranged at the bottom of the sampler, and a conical balancing weight arranged right below the bottom of the tank body, the plurality of impact columns vertically penetrate through the bottom of the tank body in a surrounding manner at equal intervals by taking the center line of the tank body as the center, the connecting plate is horizontally arranged in the tank body, the lower side of the connecting plate is fixedly connected with the tops of the impact columns, and the linear displacement mechanism is arranged on the tank body. The linear displacement mechanism is used for driving the impact column to impact the top of the conical balancing weight from top to bottom, so that the conical balancing weight obtains larger potential energy, a rope between the sampler and a wellhead is straightened in an auxiliary manner, and a distance mark on the rope conforms to the actual depth of the sampler; the specific depth of the monitoring sampling well is accurately sampled, so that a sample of a specific layer of underground water is obtained.

The invention provides a flexible physical simulation method and system based on dynamic topology cutting, and the method comprises the steps: carrying out the dynamic topology mapping and aggregation processing of the geometric vertex data of a flexible body, and generating a surface particle topological structure; constructing an elastic response model based on the relative displacement between the mass points, and combining implicit Euler correction and toughness gradient extraction to generate an elastic potential energy parameter set; constructing a fracture sensitive energy field in combination with the rigid body motion trail and an energy permeation threshold value, and performing multi-domain response screening; and further carrying out region identification, structure redirection and phase reconstruction to generate a continuous deformation harmonic map, and realizing dynamic stable repair of the flexible body topology through repair domain construction and rebound fusion. Dynamic response, self-adaptive energy path identification, regional continuous deformation recovery and efficient and stable local topological repair of a flexible topological structure are realized, and physical precision and evolution robustness of flexible simulation are remarkably improved.

The utility model discloses an automatic detection device for secondary protection of a power transmission and transformation facility, which is applied to the technical field of power transmission and transformation facility detection, and is characterized in that the automatic detection device comprises a detection shell fixedly connected with the inner wall of a facility cabinet body, and the inner wall of the front surface of the detection shell is provided with a convex groove; the secondary protection device has the technical effects that when the secondary protection device breaks down, the detection value of the current detector of the induction coil is zero, at the moment, potential energy accumulated by the spring pushes the strip-shaped magnet leftwards, the strip-shaped magnet is driven to rotate, and the secondary protection device is driven to rotate. When the current detector detects faults, the conduction piece is staggered with the first circular conductor and the second circular conductor, the detection value of the current detector is zero, the monitoring center displays that power transmission and transformation facilities and secondary protection equipment related to the current detector break down, and therefore workers are arranged to go to corresponding positions for maintenance conveniently and quickly.

A drain strainer is provided that includes a basket. The basket defines a central cavity and includes perforations that are sized to enable liquid to drain through the basket while debris is collected in the basket. The drain strainer is configured to be preloaded to a potential energy state and upon the drain strainer being released from the potential energy state the potential energy converts to kinetic energy that is sufficient to eject the debris from the basket.

The present invention relates to the field of energy storage technology. Specifically, the present invention discloses a method and system for storing and releasing energy at different positions of a formation. The method includes an integrated energy storage and release method or a split energy storage and release method that can operate independently; the integrated energy storage and release method includes: selecting at least two formation cracks at different depths as target energy storage cracks, and the target energy storage cracks are connected by a wellbore; injecting a high-pressure fluid into the wellbore so that the high-pressure fluid can enter all target energy storage cracks connected to the wellbore; plugging the wellbore opening to maintain elastic deformation of the formation rock to store energy; when releasing energy, reducing the wellbore plugging pressure so that the target energy storage crack is closed, and converting the elastic potential energy accumulated in the formation rock into kinetic energy during the closing process when the high-pressure fluid is reversed. The present invention is applicable to the storage and release of energy in formation cracks at multiple different depths.