993 results about "Thunderbolt" patented technology

The invention provides a lightning protection system effectiveness evaluation method and system based on multi-dimensional research and judgment, and relates to the technical field of lightning protection, and the method comprises the steps: collecting system index data through a bidirectional feature extraction network, employing a separable convolution layer with an attention mechanism and multi-scale Fourier transform to extract features, and carrying out the analysis of the features; an index transfer function is constructed in combination with a causal reasoning network, evaluation grade division is performed by adopting kernel principal component analysis and density clustering, and system parameters are optimized through a hierarchical reinforcement learning framework, so that accurate evaluation and dynamic optimization of the state of the lightning protection system can be realized, and the reliability and the protection effect of the system are improved.

Disclosed are a method for designing lightning shielding by using diverter strips on an aircraft, a system, a device, and a medium. The method comprises: determining boundary conditions of a simulation space; according to the boundary conditions of the simulation space, performing numerical calculation on an electric field in the simulation space; according to the calculation result of the electric field and in combination with fractal theory, determining a probability of the direction of lightning leader development, and, according to the probability of the direction of lightning leader development, randomly selecting a subsequent development position of a lightning downward-moving stepped leader; determining, on the basis of testing and simulation results of a corona discharge characteristic at the tip of a metal electrode having a small radius of curvature, whether an initial corona at an end portion of a diverter strip has been initiated, and determining whether an initial corona at an end portion of a diverter strip has been initiated; determining whether the lightning downward-moving stepped leader can, after attaching to an insulating plate, run through a gap along the surface and reach an adjacent diverter strip; repeating the process above, and performing multiple simulations to solve the probability of lightning protection of diverter strips and establish a relationship between the probability of lightning protection of diverter strips and the distance between the diverter strips at different thicknesses of and using different materials for the insulating plate.

The invention discloses a + / -800kV converter station lightning arrester insulation cooperation checking method considering multiple lightning strokes, and the method comprises the steps: S1, building a high-frequency electromagnetic transient simulation model according to the engineering practice and the high-frequency demands of lightning overvoltage simulation calculation; s2, multiple lightning stroke lightning current waveform parameters and lightning stroke time intervals are selected, and parameters capable of representing different frequencies of ground-to-ground lightning in the region where the research object is located are obtained; s3, simulating and analyzing residual voltage, current and absorbed energy of the lightning arrester at different positions of multiple lightning / multiple lightning shielding failure; s4, comparing and analyzing amplitude values of residual voltage, current and absorbed energy of the lightning arrester under single lightning stroke / multiple lightning stroke, and selecting a maximum value; and S5, proposing a lightning arrester configuration scheme, adjusting the type of the lightning arrester in the simulation model, and repeating the steps S3 and S4 to carry out secondary checking and adjustment. According to the method, a lightning arrester type selection scheme capable of effectively inhibiting single lightning overvoltage and multiple lightning overvoltage is provided, and the lightning accident rate of the lightning arresters in the converter station is reduced.

The invention provides a distribution network lightning arrester transient temperature distribution improvement method based on insertion of an aluminum gasket, and belongs to the technical field of electrical equipment, and the method comprises the steps: constructing a lightning arrester three-dimensional model in simulation software; constructing the lightning arrester conductivity of the coupling temperature; constructing a lightning stroke simulation model of the lightning arrester; lightning stroke transient temperature distribution of the lightning arrester is obtained, and a lightning stroke comparison result before and after addition of the aluminum gasket is obtained; constructing an aluminum gasket thickness-position set; and obtaining the position-thickness optimization relation of the aluminum gasket, constructing a genetic algorithm model according to the aluminum gasket thickness-position set, and obtaining the optimal aluminum gasket thickness based on the position. The method has the advantages that the temperature change of the ZnO valve plate of the lightning arrester under the lightning impulse is obtained, and the transient temperature distribution of the lightning arrester during the lightning impulse is obtained by using the temperature distribution coefficient; comparing the transient temperature distribution of the lightning arrester before and after adding the aluminum gasket to confirm that the temperature distribution of the lightning arrester can be optimized by adding the aluminum gasket; therefore, the method for introducing the aluminum gasket between the lightning arrester valve plates is provided.

The invention relates to the technical field of aircraft lightning protection tests, and discloses an aircraft lightning indirect effect and HIRF conduction sensitivity test device and method, and the device comprises a device under test (EUT), an accompanying monitoring device, an auxiliary device, an HIRF injection probe, a lightning injection probe, a monitoring probe, a lightning signal isolator, and an HIRF conduction test system. The invention discloses a lightning indirect effect test system and a digital oscilloscope. Aiming at the problem of electromagnetic environment potential safety hazards caused by independent evidence obtaining and independent rectification of civil aircraft thunder and lightning and HIRF airworthiness, thunder and lightning indirect effect and HIRF conduction sensitivity tests can be simultaneously carried out on an aircraft electronic and electrical system, the thunder and lightning and HIRF comprehensive protection performance of the aircraft electronic and electrical system is verified, and the potential safety hazards of the electromagnetic environment are effectively reduced. The thunder and lightning indirect effect and HIRF conduction sensitivity test device is simple in construction and easy for engineering realization, and can also be used for thunder and lightning and HIRF protection performance verification tests of other aircrafts.

The invention discloses a railway LEU-transponder transmission system lightning stroke fault risk assessment method, and the method comprises the steps: determining a lightning current invasion path through building a lightning stroke transient electromagnetic disturbance calculation model of an electromagnetic sensitive equipment port, and calculating the voltage and current at the port when incoming waves invade. And building an electromagnetic sensitivity test experiment platform of the railway signal system based on the lightning current invasion path and the voltage and current at the port. And performing label category prediction on the to-be-predicted sample point through each support vector machine model in the target model set, and voting each prediction result. According to the invention, a complex transmission relation between lightning transient electromagnetic disturbance and equipment failure risk is established through deep learning. The fault risk of the signal system under the lightning transient electromagnetic disturbance action is predicted through transient electromagnetic effect experimental data of real equipment of the railway signal system, and powerful support is provided for improving the electromagnetic sensitivity of the signal system and guaranteeing stable operation of a railway.

The invention discloses a fan blade lightning stroke current simulation method and system based on multi-physics field coupling, and belongs to the field of wind power generation equipment protection, and the method comprises the steps: building a three-dimensional geometric model of a fan blade; defining a multi-physical field environment including an electromagnetic field, a thermal field and a stress field; setting lightning stroke points on the three-dimensional geometric model according to lightning parameters; calculating electromagnetic distribution, temperature distribution and stress distribution in the blade in the lightning stroke process along the lightning propagation channel by using the electromagnetic field, the thermal field and the stress field based on the lightning stroke point, the lightning stroke basic information and the lightning attenuation rate; and constructing a lightning stroke current simulation result according to the electromagnetic distribution, the temperature distribution and the stress distribution, and performing visual display. The technical problem that the blade lightning protection design is insufficient due to the fact that the influence of lightning stroke on the multi-physical field interaction of the fan blade cannot be comprehensively and accurately simulated and analyzed in the prior art is solved.

The invention discloses a lightning protection system for an environment monitoring station and a use method of the lightning protection system, and relates to the technical field of lightning protection, and the system comprises a multi-stage composite grounding module, an intelligent energy distribution module, a lightning current monitoring module, a surge protection module and a grounding impedance optimization module. Comprising a main grounding body, an auxiliary grounding body and a deeply-buried grounding electrode, the grounding resistance can be remarkably reduced, the lightning current leading-in efficiency can be improved, when lightning current passes through, the multi-stage grounding structure can effectively disperse the current, overload of a single grounding body is avoided, and meanwhile the grounding resistance of the grounding body is improved. The intelligent energy distribution module can dynamically adjust a current distribution strategy between different grounding bodies according to the magnitude of lightning current, ensures that the deeply-buried grounding electrode is preferentially conducted under the condition of strong lightning stroke, starts a parallel discharge mode of the main grounding body and the auxiliary grounding body under the condition of weak lightning stroke, and guarantees the safe operation of the environment monitoring station.

The invention relates to the field of resource allocation, and discloses a wind power plant blade lightning protection detection unmanned aerial vehicle task scheduling and path optimization management method, which is used for improving the efficiency, safety and economy of wind power plant blade lightning protection detection. Comprising the steps of generating a dynamic risk tag and sorting a task queue based on a fan spacing topological relation, a blade grounding resistance annual degradation rate and a real-time lightning early warning level, outputting a detection work order with a time window in combination with the residual electric quantity of the unmanned aerial vehicle and a return distance, and calculating a unit time cost derivative by adopting a fractional order differential equation, and dynamically regulating and controlling the deployment density of the unmanned aerial vehicle cluster, constructing a three-dimensional composite potential field containing the lightning rod safety radius in the digital elevation model, monitoring the deviation between the actual detection cost and the predicted value in real time, and dynamically adjusting the work order priority based on the enterprise risk coefficient. According to the method, dynamic risk assessment, cost optimization, obstacle avoidance planning and intelligent decision making are integrated, and the timeliness, economical efficiency and reliability of wind power plant blade lightning protection detection are remarkably improved.

The invention discloses a lightning stroke attachment point calculation method of a complex surface flat plate structure, and aims to overcome the defects of an existing lightning stroke attachment point numerical calculation method, and on the basis that finite element software is utilized to construct a typical needle plate model based on an electric field model method, an electrode is moved downwards to simulate the thunder and lightning development process under first guidance. A pilot / corona onset criterion is established based on short-gap discharge and material corona discharge theories, a numerical simulation algorithm is provided for evaluating the lightning protection design of a complex surface flat plate structure, the determination accuracy of the attachment points of the flat plate structure with similar surface material conductivity, complex surface microstructure and no salient points is improved, the attachment point simulation algorithm is optimized, and the method is suitable for application and popularization. And tedious and high-cost test links are effectively avoided.

The invention provides a series gap lightning arrester electromagnetic transient simulation analysis method and device and electronic equipment. The method comprises the following steps: according to a Heidler function, creating a lightning simulation model of the overvoltage of the lightning intrusion wave of the power transmission line; the method comprises the following steps: acquiring system parameters of a power transmission line, creating an electromagnetic transient simulation model of the power transmission line provided with a series gap lightning arrester according to the system parameters of the power transmission line, and calculating simulation data at each monitoring point of the power transmission line under the action of lightning overvoltage by adopting the electromagnetic transient simulation model and a lightning simulation model, and carrying out safety performance evaluation on the series gap lightning arrester according to the simulation data. By constructing the lightning simulation model and the electromagnetic transient simulation model, the series gap lightning arrester is simulated, the safety performance of the series gap lightning arrester in the power transmission line is evaluated, and the problems that in the prior art, the requirement for computing resources is large, and the computing period is long are solved.

The invention discloses a lightning protection method and system for a power grid in a complex terrain region, and relates to the technical field of power grid lightning protection, and the method comprises the steps: carrying out the DEM simplification and highlighting of an elevation digital model of a to-be-detected region based on a power grid, and building a lightning protection analysis simulation model through simulation software; obtaining a plurality of lightning protection gap setting arrays to be screened; obtaining power grid breakdown hidden danger data and lightning protection data; establishing a lightning protection gap evaluation model; and constructing a lightning protection gap change display model by using each to-be-screened lightning protection gap setting array and the corresponding lightning protection gap evaluation model, performing curved surface analysis on the lightning protection gap change display model to obtain a screened lightning protection gap setting array, and applying the screened lightning protection gap setting array to power grid lightning protection in a complex terrain area. The problems that the lightning protection effect and equipment safety are difficult to balance due to the fact that setting of the lightning protection gap is not clear, the impact damage risk of lightning to power grid equipment is increased, or grounding faults and interphase short circuits are caused due to improper setting of the gap are solved.

The invention relates to the technical field of thunder and lightning signal sampling, and discloses a GAN-based thunder and lightning very-low-frequency electromagnetic wave signal up-sampling method, a terminal and a medium. The method comprises the following steps: preprocessing a lightning very-low-frequency low-sampling signal and a real high-sampling signal; constructing a generative adversarial network; the generator is used for extracting initial features from the low-sampling signals and performing residual enhancement, then mapping low-sampling features after residual enhancement to a high-sampling dimension through a feature-guided dynamic interpolation mechanism, and performing correction and signal mapping on intermediate features after interpolation to obtain reconstructed signals matched with a target high-sampling rate; the discriminator is used for reconstructing the authenticity probability of the signal; after a generator and a discriminator are jointly trained by adopting an alternative updating mode of discriminator loss and generator loss, a newly input low sampling signal is preprocessed, and a corresponding reconstruction signal is output through the generator. According to the invention, accurate reconstruction from a lightning very-low-frequency low-sampling signal to a high-sampling signal is realized.

The invention relates to a thunder and lightning detection and acquisition system. Comprising a high-speed A / D conversion module, a GNSS time service unit, a data processing unit, a DDR data storage unit, an ARM processing unit, a file storage unit and a data return unit. The high-speed A / D conversion module converts the lightning detection analog signal into a digital signal; the GNSS time service unit outputs a high-precision sampling reference clock, and the absolute time for detecting lightning electric signals is guaranteed to be obtained. And the data processing unit realizes analog-to-digital conversion control, lightning detection data acquisition, timestamp acquisition, pre-triggering and triggering control, wave crest acquisition and output control. The FPGA logic gate circuit temporarily stores the processed data in the DDR data storage unit by adopting DMA, and notifies the ARM processing unit to process the data; the ARM processing unit extracts corresponding data from a cache of the DDR data storage unit and stores the data in the file storage unit after receiving a notification of data acquisition, and the extracted peak data and corresponding time information are transmitted back to the data processing center through the data return unit.

The metasurface array antenna housing comprises a plurality of array units of the same structure, each array unit sequentially comprises a first lightning protection layer from top to bottom, and each first lightning protection layer comprises four copper metal cylinders and a lightning protection top layer drainage metal patch; the second metasurface wave absorbing and transmitting layer comprises a first dielectric substrate, and four quasi-rectangular patches, four lumped resistors, four quasi-triangular patches and four quasi-square rings which are arranged on the upper surface of the first dielectric substrate; the third metasurface wave-transparent layer comprises a square metal patch, and a first circular ring and a second circular ring are etched on the square metal patch. Lightning is guided to the third metasurface wave-transparent layer through the first lightning protection layer, the lightning is conducted to other areas through the metal patch, damage of the lightning to the antenna housing is effectively avoided, and the antenna housing can directly replace a lightning protection strip for use; the structural size is greatly reduced, the angle stability is improved, and integration is facilitated; the copper-clad surface of the third metasurface wave-transparent layer can be used as a metal back plate of the second metasurface wave-absorbing layer, and structural multiplexing is achieved.

The invention discloses a real-time thunder and lightning positioning method. A plurality of observation station GNSS (Global Navigation Satellite System) synchronously acquire thunder and lightning signals to obtain waveform data; performing FFT band-pass filtering and denoising processing on the lightning signal waveform data; a sliding window dynamic threshold is adopted to extract peak value characteristics, peak value characteristics (tp, Ap and Wp) of a waveform in different time windows are obtained, a local noise standard deviation is calculated, only an effective peak value is reserved, and real-time return of lightning data is realized while positioning precision is ensured. The calculation center reconstructs the waveform based on the peak value characteristics (tp, Ap, Wp), the reconstructed waveform more accurately reflects the characteristics of the lightning signal, and the time delay measurement error caused by signal distortion is reduced. And calculating the mutual correlation of the reconstructed lightning waveform data of every two observation stations, extracting the maximum correlation time delay, calculating a TDOA equation set by adopting a weighted nonlinear least square method according to the signal time delay information, and outputting a three-dimensional lightning positioning result. And evaluating the reliability of the positioning result through residual analysis and geometric accuracy factors.

The invention relates to the field of electronic material technology and lightning protection, in particular to a progressive impedance thin film material compatible with lightning protection / edge scattering control. The passive protection method based on the Faraday cage concept is applied to lightning stroke protection of a typical edge scattering suppression structure, the surface of the typical edge scattering suppression structure is covered with the whole full-covering periodic hollow impedance film, and the original electrical performance is not negatively influenced by setting the parameter value of each hollow pattern through calculation; and the lightning protection progressive impedance film can effectively guide away lightning current injected into the target body, so that the lightning current smoothly flows into the conductor to well protect the wave-absorbing material below the conductor, thereby achieving a good lightning protection effect and achieving the lightning protection effect at the same time. The method is simple in process, high in operability, easy to implement industrially and suitable for popularization.

The utility model discloses an automated equipment connected with a horizontal glass washing machine, comprising: a washing machine, a transport device and a lasagna rack; the transport device, wherein a lifting device and a lasagna rack flipping module are arranged at the bottom of the transport device, the transport device is arranged at one side of the washing machine, the transport device comprises a material taking Z-axis module, and a material taking X-axis module is arranged on the material taking Z-axis module. The automated equipment connected with the horizontal glass washing machine of the utility model can automatically put the glass on the lasagna rack into the washing machine for washing through the cooperation between the transport device, the lifting device and the lasagna rack flipping module. Therefore, in this design, manual operation only needs to be performed by pushing in / out the lasagna rack, and the subsequent suction, delivery and flipping are all automated operations, eliminating the manual delivery action, which can save labor costs and improve efficiency and yield.

The invention provides a wind power blade deicing control system lightning protection circuit and a test method, the circuit comprises a temperature sensor, a lightning protection module, an optocoupler signal isolator, a PLC, a main CPU and a power supply assembly, the temperature sensor is arranged on a wind power blade, a first signal end, a second signal end and a shielding shell of the temperature sensor are connected with the lightning protection module, and the optocoupler signal isolator is connected with the PLC. The lightning protection module is connected with the optocoupler signal isolator, the optocoupler signal isolator is connected with the PLC, the PLC is connected with the main CPU, a power supply from a wind power host is connected with the power supply assembly, and the power supply assembly is connected with the PLC, the main CPU and the optocoupler signal isolator and is used for supplying power. According to the invention, the PLC, the switching power supply, the CAN bus and other modules in the control system can be protected from common ground, so that the lightning current cannot enter equipment to cause damage during lightning stroke, the lightning protection method in the control system is protected to be distributed according to the lightning protection level, and the position of a lightning triggering point during lightning stroke of the wind power blade deicing control system is protected.

The invention provides a radar processing module test system, and belongs to the technical field of lightning protection, and the test system comprises a test tool which is used as a carrier plate for testing a processing module and is used for providing high-speed PCIE bus interface test resources; and the hardware core machine is used for integrating the test function module and the main control unit, test software is configured in the main control unit, the test software adopts a layered architecture design, and the test software with the layered architecture comprises an application layer, a network layer and a virtual driving layer. The radar processing module test system provided by the invention adopts test software with a layered architecture, and has the attributes of flexibility, high reusability and high expansibility, and a test program is independent of a test component. When the test assembly needs to be replaced, a new instrument driving program can be used under the condition that the test program is kept unchanged, so that the total cost of creating and maintaining the test program is reduced.

The invention discloses a flashover active feature recognition method for a power transmission line image, and the method comprises the steps: obtaining a historical picture, carrying out the preprocessing of the historical picture, and obtaining an image matrix, and the preprocessing comprises the first preprocessing and the second preprocessing; a sliding window technology is applied to the image matrix, the value of each window is calculated, the maximum value of the mean value of the windows is obtained, first judgment is conducted on the maximum value of the mean value of the windows, and a lightning flashover track is obtained; according to the method, the average brightness value and distribution in the lightning flashover track are extracted, the lightning flashover track is subjected to second judgment, lightning flashover is obtained, operation and maintenance personnel can understand the monitoring result more easily, and therefore operation and maintenance work can be guided more effectively.

The invention relates to an external multi-gap lightning arrester volt-second characteristic curve estimation method and device and a medium, and the method comprises the steps: selecting at least two different standard lightning pulses to carry out the lightning stroke test of an external multi-gap lightning arrester test system, and obtaining an initial initial voltage and a corresponding initial lightning stroke damage effect value; constructing each standard lightning pulse voltage-time curve, obtaining a damage effect integral function, and obtaining an initial external multi-gap lightning arrester voltage-time curve in combination with the initial initial voltage and the initial lightning damage effect value; based on the initial voltage-time curve of the external multi-gap lightning arrester, parameter optimization is carried out by utilizing a genetic algorithm, the voltage-time curve of the external multi-gap lightning arrester is obtained, and equipment and a medium are used for realizing the method. Compared with the prior art, the method has the advantages that the volt-second characteristic curve of the external multi-gap lightning arrester is directly estimated by using the genetic algorithm, and the characteristic curve capable of accurately reflecting the influence of the lightning stroke on the power distribution network is obtained through a simple estimation method.

The utility model discloses an anti-thunder filtering electric connector, which comprises a metal shell, an input end contact element, a filtering capacitor, an output end lead, a transient suppression diode and a printed board, and is characterized in that the filtering capacitor is a plate-type capacitor which is arranged in the metal shell; the plurality of input end contacts respectively pass through a plurality of inner electrode through holes of the plate-type capacitor and a plurality of corresponding through holes on the printed board, the plurality of transient suppression diodes are respectively installed on the printed board, and one ends of the transient suppression diodes are respectively in conductive connection with the plurality of input end contacts. The other ends of the plurality of transient suppression diodes are respectively and conductively connected with the inner wall of the metal shell, and the inner ends of the plurality of input end contacts are respectively and conductively connected with the inner ends of the plurality of output end leads. The utility model has the functions of filtering, lightning protection and electric connection at the same time, the product integration level is very high, the volume and the weight are reduced, a lightning protection circuit module does not need to be added in a post-stage circuit module during application, the design and the production of the whole machine are facilitated, and the production efficiency of the whole machine is improved.

The present application relates to lightning monitoring and strategy optimization technical field, especially a kind of lightning detection station layout method and system based on intelligent optimization algorithm.The site coordinates are used as the initial population satisfying the site position constraint of solution generation, and the individual corresponding to solution is 3N-dimensional vector, corresponding to the three-dimensional coordinates of N sites;Then population iteration is carried out through population mutation, crossing.This application can maintain the higher diversity of individual in the process of individual mutation, and randomly selects multiple parent individuals for mutation.Although the convergence speed is slow in high-dimensional, multi-peak experimental environment, it has stronger global search ability and the advantage of avoiding local convergence.The present application solves the problem that lightning positioning site distribution cannot consider terrain and cannot guarantee detection efficiency and accuracy in the prior art.

The invention provides an intelligent lightning arrester for a line. The intelligent lightning arrester comprises a lightning arrester body and an intelligent control box, the lightning arrester body is used for providing a low-impedance grounding channel for overcurrent when overvoltage caused by lightning or switching operation occurs on a line, so that the overvoltage is limited below a safety level, subsequent electrical equipment is protected from being damaged, the lightning arrester body recovers to an insulation state after the overvoltage disappears, and normal operation of a power system is guaranteed. The intelligent control box comprises an embedded intelligent sensing module and a diagnosis module, and the embedded intelligent sensing module is used for collecting operation state parameters of the lightning arrester body in real time; and the diagnosis module is used for evaluating the insulation state of the lightning arrester body by adopting a partial discharge mode recognition model according to the operation state parameters of the lightning arrester body, and predicting the aging trend of a valve plate unit of the lightning arrester body by adopting a valve plate aging trend prediction model. The lightning arrester disclosed by the invention has the dual advantages of compact structure and high-performance protection.

The invention relates to the technical field of thunder and lightning signal identification, and discloses a thunder and lightning time sequence signal identification method based on an improved Transform, a terminal and a medium. The method comprises the following steps: acquiring an original lightning electric field time sequence signal and carrying out signal preprocessing to generate a plurality of lightning time sequence fragments; screening out key time sequence fragments containing lightning radiation pulses from the plurality of lightning time sequence fragments; taking each key sequence fragment as one-dimensional time sequence data of a single channel, inputting the key sequence fragments into an improved Transform neural network model, and outputting a corresponding lightning discharge type identification result; the model comprises a down-sampling convolution module, a position encoding module, a multi-layer Transform encoder and a category output module. According to the method, subtle relations in the lightning signals are deeply mined, more robust feature support is provided for classification tasks, and the method has better universality, so that the discharge types of the lightning signals are efficiently identified.

The utility model discloses a plug of a power adapter, which relates to the technical field of power adapters and comprises a shell, a plug body and a plug body. The plug pin is connected to the shell, and at least part of the plug pin extends into the accommodating cavity; the circuit board is arranged in the accommodating cavity, a golden finger contact is arranged on the circuit board, and a plurality of contacts are arranged on the golden finger contact at intervals; the conductive elastic sheet is clamped and connected in the accommodating cavity, the conductive elastic sheet is provided with a first connecting end corresponding to the pin and a second connecting end corresponding to the golden finger contact, and at least two abutting elastic sheets are arranged on the second connecting end at intervals, so that one abutting elastic sheet abuts against the plurality of contacts; therefore, the contact area of the conductive elastic sheet and the golden finger contact can be increased, so that the contact impedance of the conductive elastic sheet and the PCB is effectively reduced, and the power adapter plug can meet the requirement of high-voltage thunder and lightning tests.

The invention discloses an overhead transmission tower lightning current monitoring system and method, and the method comprises the following steps: installing a multi-mode sensor module on a tower, and collecting a lightning current signal and structure response data; utilizing a local sparse dynamic window optimization algorithm to process the data segment by segment, extracting dynamic features and generating a multi-scale feature map; modeling a lightning stroke propagation rule through a space-time generative adversarial network, and generating a space-time characteristic matrix; constructing a spatial correlation map by combining a hypergeometric map embedding algorithm, and identifying a lightning stroke influence range and a diffusion path; dynamically adjusting a communication path and frequency distribution by adopting a Bayesian game optimization model; analyzing the potential influence of lightning stroke on the structure based on a multi-task self-supervised learning model, and predicting a time evolution trend; and comprehensively evaluating real-time and historical data through the remote monitoring terminal, and generating a risk prediction report and a protection reinforcement strategy. According to the invention, the problems of real-time performance, accuracy and environmental adaptability of lightning current monitoring are solved.

The utility model relates to a transformer ascending flanged base explosion-proof structure, and belongs to the technical field of transformer manufacturing. According to the technical scheme, a middle barrel (21) and a lower barrel (22) are connected in a welded mode through an annular transformer ascending flanged base pressure releasing plate (16), and an inner ring of the transformer ascending flanged base pressure releasing plate (16) is connected with the top of the lower barrel (22) through a second transformer ascending flanged base pressure releasing plate welding seam (18); an outer ring of a transformer ascending flanged base pressure release plate (16) is connected with the bottom of the middle barrel (21) through a transformer ascending flanged base pressure release plate welding seam I (17); and an arc-shaped transformer ascending flanged base explosion-proof protection plate (8) is arranged outside the lower cylinder body (22) and covers the middle cylinder body (21) and the transformer ascending flanged base pressure release plate. The explosion-proof device has the beneficial effects that the explosion of the transformer ascending flanged base caused by thunder, lightning, short circuit and the like can be greatly reduced, so that the loss caused by the explosion is reduced, and the safety of workers is protected.

The invention relates to the technical field of lightning protection, and discloses a natural gas station lightning protection monitoring method. The method comprises the following steps: acquiring electric field and equipment state data in real time by using a triangular networking electric field instrument and a multi-type sensor; performing time-frequency domain decomposition on the data, and constructing a feature library containing historical experience; then, fusing physical model calculation and historical mode matching, and generating a lightning current predicted value; an early warning threshold value is adjusted according to the health state of the equipment, and accurate early warning is achieved; according to the method, a physical rule formed by thunder and lightning is combined with a historical data driven mode, meanwhile, the influence of the equipment state on early warning is considered, the problems that a traditional method is low in prediction precision and poor in equipment linkage performance are solved, and the method is suitable for popularization and application. And a dynamic and accurate thunder and lightning protection scheme is provided for the natural gas station.