4813results about How to "Ensure stability" patented technology

The invention discloses a power transmission and transformation equipment fault early warning system based on online monitoring, and the system comprises the following modules: a multi-parameter sensor module which is used for collecting data in real time; the wireless sensor network module is used for transmitting the data to the data processing center for processing; the data fusion module is used for generating a comprehensive health score of the equipment by adopting a multi-modal data fusion algorithm based on a self-evolution nested network; the trend prediction module introduces an adaptive residual module to carry out trend prediction based on a nonlinear time sequence analysis technology of a generative adversarial adaptive residual network; the early warning threshold value adjusting module is used for dynamically adjusting an early warning threshold value by adopting a self-adaptive evolutionary algorithm of meta reinforcement learning; the maintenance suggestion generation module is used for generating maintenance suggestions; and the power grid dispatching linkage module is used for automatically linking a power grid dispatching system and detecting and adjusting an equipment load. According to the invention, a multi-parameter fusion and generative adversarial network method is adopted, and an adaptive residual module is introduced, so that accurate early warning of faults of power transmission and transformation equipment is realized.

The invention relates to a shared energy storage virtual inertia compensation control method for wind power cluster collection, and belongs to the technical field of power system control. In order to solve the problem of insufficient cooperative control of a wind power system and an energy storage system in the prior art, a dynamic model is established by obtaining operation parameters, and the dynamic model comprises a wind turbine generator active power control model and an energy storage system charging and discharging model; designing a virtual inertia control strategy, and introducing virtual inertia control to simulate inertia response characteristics of the synchronous generator; shared energy storage coordination control is carried out, and a strategy is designed by using an MPC method according to an inertia demand and an SOC state; establishing a frequency dynamic response model and calculating inertia response time as a virtual inertia control start-stop condition; and optimizing controller parameters and designing locking logic by adopting an intelligent algorithm. The method can improve the system performance and efficiency, enhance the frequency stability, improve the energy utilization efficiency of the energy storage system, optimize the system performance, and improve the system stability and reliability.

The invention discloses a rice disease and insect pest early warning method and system based on image recognition, and particularly relates to the technical field of insect pest recognition, different areas of a rice field are comprehensively covered through multi-source high-resolution image collection, it is ensured that the image quality reaches a preset threshold value, median filtering and histogram equalization are adopted in the image preprocessing step, and the image quality is improved. Based on a geographic information system and a Kriging interpolation method, a spatial heterogeneity model of rice field disease transmission is established, a deep convolutional neural network is used for carrying out feature extraction on the image, the type, position and severity of diseases and pests are accurately recognized, the extracted features are combined with the spatial heterogeneity model, and the accuracy of the disease and pest detection is improved. A spatial autocorrelation analysis method is adopted to deeply evaluate the distribution mode of diseases in the rice field, and a support vector machine algorithm is applied to perform classification evaluation on the disease and pest risk, so that the problems of early warning lag and missing report caused by disease spatial heterogeneity are effectively solved, and the accuracy and timeliness of early warning are improved.

The invention discloses a federal forgetting learning method based on small sample knowledge distillation. The method comprises the following steps: initializing a global model by adopting a server and broadcasting the global model to each client; each client carries out local training on the received global model by using local data, and after the local training is completed, the global model is updated and sent back to the server; the server stores and aggregates the global models sent by all the clients, is used for updating the local global model of the server, and repeats the federal learning process from S1 to S3; a target client makes a forgetting request at a certain moment, federal learning is stopped, and at the moment, a server side uses a forgetting module to generate a forgetting model and takes the forgetting model as a student model; the server side finely adjusts and compares the language image pre-training model according to local small sample data, so that the language image pre-training model adapts to downstream data and serves as a teacher model; the server uses local small sample data to carry out recovery training through a knowledge distillation method, so that catastrophic forgetting caused by client data revocation is avoided, and the performance of a forgetting model is improved.

The invention relates to the field of flue accessories, in particular to a flue gas baffle door capable of quickly responding, which is characterized in that through a vent hole formed in a door plate and a plugging block linked with a piston disc, the plugging block is far away from the vent hole when being extruded by flue gas, and a flowing gap of which the flowing area is gradually increased as the plugging block is far away from the vent hole is formed between the plugging block and the vent hole; meanwhile, the spring installed at the end of the piston disc is matched, so that the plugging block moves along with the smoke discharge capacity, the circulation area of the circulation gap is dynamically adjusted, passive response adjustment of the circulation area is achieved, and the situation that a traditional door blocking plate can only be electrically adjusted through a mechanical traction mechanism is replaced; the timeliness of flow area adjustment and the response sensitivity are improved; in addition, through a magnetic ring installed in the piston disc and an electromagnetic coil installed in the shell wall of the piston barrel, the electromagnetic coil is used for driving the magnetic ring and the piston disc on the outer side of the magnetic ring to transversely move in the piston barrel, and faster active response adjustment is achieved.

The invention provides velvet antler mushroom sporocarp water extraction residue polysaccharide as well as an extraction method and application thereof, and belongs to the technical field of edible mushroom polysaccharide preparation. The invention provides an extraction method of water extraction residue polysaccharide of a mushroom fruiting body, which comprises the following steps: sequentially carrying out solid state fermentation, post-treatment and hot water extraction on the water extraction residue of the mushroom fruiting body to obtain an extraction product containing the water extraction residue polysaccharide of the mushroom fruiting body. According to the method disclosed by the invention, the water extraction residues of the pilose antler mushroom sporocarp are used as raw materials, so that high-value utilization of the water extraction residues of the pilose antler mushroom sporocarp can be realized. Moreover, the method can improve the yield and content of polysaccharide, and has the advantages of no chemical residue, ecological environmental protection, high production efficiency and the like. Besides, the polysaccharide prepared by the extraction method disclosed by the invention is stable under a digestion condition, and the prepared polysaccharide can improve the content of short-chain fatty acids in intestinal tracts, so that a basis is provided for application of the polysaccharide of the water-extracted residues of the fruiting bodies of the velvet antler mushrooms in new potential prebiotics.

The invention relates to the technical field of driving shaft machining, and discloses conveying equipment for heat treatment of an automobile driving shaft. The quenching device comprises a conveying mechanism used for conveying the driving shaft and a quenching mechanism used for heating and cooling the driving shaft, a plurality of limiting frames capable of moving in a telescopic mode are arranged on the conveying mechanism, and each limiting frame comprises a sliding strip and two shaft frames which are arranged on the sliding strip and used for containing and limiting the driving shaft. Therefore, the conveying mechanism can stably convey the driving shaft, and meanwhile quenching of the quenching mechanism on the driving shaft is not affected. The quenching mechanism comprises an induction heating coil which is arranged above the conveying mechanism and can move transversely and an ejector rod used for limiting axial movement of the driving shaft. The conveying mechanism is improved and combined with the quenching mechanism, so that the heat treatment process of the driving shaft can be automatic and streamlined, and the quenching efficiency of the driving shaft is improved while the quenching effect of the driving shaft is ensured.

The invention provides a satellite attitude control system fault diagnosis and fault-tolerant reconstruction method and system, and relates to the technical field of satellites, and the method comprises the steps: obtaining attitude data through a Kalman filtering state observer, building a fault diagnosis model, generating a residual sequence, and carrying out the adaptive dynamic threshold calculation to obtain a fault feature vector; and inputting the feature vector into a pre-trained deep belief network for fault diagnosis, and determining the fault type and degree. According to a diagnosis result, a mixed integer programming model considering attitude control precision and actuator power constraint is established, an improved genetic algorithm is adopted for solving, an actuator reconstruction scheme and controller parameters are obtained, and fault-tolerant control is achieved. According to the invention, faults can be diagnosed rapidly and accurately, fault-tolerant reconstruction is carried out according to fault types and degrees, the reliability and stability of a satellite attitude control system are effectively improved, and the satellite attitude control precision is ensured.

The invention provides a CT acquisition control communication system and method based on hybrid networking of multiple communication modes. The CT acquisition control communication system comprises a CT stator part communication subsystem, a CT rotor part communication subsystem and a master control PC. The master control PC comprises an upper computer, is operated through a visual interface and is responsible for task scheduling, scanning protocol setting, parameter configuration, data processing, patient registration, working state monitoring and image reconstruction of the whole system; the CT stator part communication subsystem comprises a lower computer core control module, a first WIFI module, a first switch, a rack control module, a patient bed control module, a power management module and a control handle; and the CT rotor part communication subsystem comprises a data acquisition and pay-off control module, a second WIFI module, a second switch, a collimator control module and a detector data acquisition and processing module. According to the invention, the overall communication efficiency and stability of the CT system and the expandability of the communication network can be improved, and the later maintenance cost of the communication system is reduced.

The invention relates to a newly-built concrete electric pole prestress reinforcing device, and belongs to the technical field of power transmission line engineering, the newly-built concrete electric pole prestress reinforcing device comprises an electric pole body, a prestress assembly is installed on the electric pole body, the prestress assembly comprises a connecting hoop and an adjusting assembly, and the connecting hoop is installed at the top end of the adjusting assembly; the adjusting assembly comprises four hinge rods which are sequentially connected end to end to form a parallelogram structure and arranged outside the electric pole body in a sleeving mode, a hinge piece is installed at the connecting position of any two connected hinge rods, and the ends of the hinge rods and the hinge pieces are installed in a hinged mode. A pair of pulleys installed on the electric pole body is further arranged between the connecting hoop and the adjusting assembly, the two U-shaped connecting blocks are both connected with steel twisted ropes, and the free ends of the steel twisted ropes penetrate through the through holes, bypass the pulleys and then are fixedly connected with the connecting hoop. Tensioning and applying of prestress can be achieved, the strength and the anti-overturning capacity of the concrete electric pole are effectively improved, and the service life of the concrete electric pole is effectively prolonged.

The invention relates to the technical field of numerical control lathes, in particular to a numerical control lathe for hardware machining, which comprises a lathe body, the lathe body specifically comprises a spindle box, a drilling assembly is arranged in the spindle box, the drilling assembly comprises a tool rest and a drilling tool, the tool rest is used for mounting and fixing the drilling tool, and the drilling tool is used for drilling hardware; a limiting groove is formed in the outer wall of the drilling tool, an adjusting assembly is rotationally connected into the limiting groove, and a plurality of chip breaking blades are arranged on the outer wall of the adjusting assembly and used for cutting off long chips. A cavity is formed in the tool rest, and an auxiliary assembly is installed in the cavity and used for being in auxiliary fit with the chip breaking blade. When hardware is drilled, a mounting plate is retracted into a limiting groove under the elastic action of a connecting spring, the mounting plate drives a chip breaking blade to rotate into the hardware along with a drilling tool, long chips are cut off by the chip breaking blade while the hardware is drilled, and the winding problem caused by too long chips is avoided.

The invention belongs to the technical field of underground gas storage, and particularly relates to a long-term efficient hydrogen storage composite lining structure for an underground rock cavern and a preparation method of the long-term efficient hydrogen storage composite lining structure. The long-term efficient hydrogen storage composite lining structure for the underground rock cavern comprises surrounding rock and an internal composite structure of the surrounding rock. The surrounding rock reinforcing layer is formed by pressure pre-grouting in surrounding rock and can resist tensile stress transmitted to the surrounding rock by internal air pressure and enhance air tightness; the permeable layer is arranged on the inner side of the surrounding rock reinforcing layer and can discharge underground water to prevent hydrostatic pressure from causing extrusion deformation damage to the concrete bearing layer during construction and causing instability of the sealing steel lining; the reinforced concrete bearing layer is arranged on the inner side of the permeable layer and the outer side of the slip layer, and micro self-healing capsules capable of repairing cracks and enhancing sealing performance are evenly added in the injection molding process; the anti-drag sliding layer is arranged between the steel lining and the bearing layer and inhibits shear damage of the sealing steel lining to the bearing layer under high internal pressure; the steel lining sealing layer is arranged on the inner side of the sliding layer to bear part of gas load and seal gas.

The anti-deviation gear groove positioning and cutting machining device comprises a rectangular shell, a sliding opening is formed in one side of the top end of the shell, a sliding base is slidably connected in the sliding opening in a clamped mode, one end of the sliding base is fixedly connected with one end of a transverse air cylinder, and the other end of the transverse air cylinder is fixedly installed at the top end of the shell; the other end of the sliding base is fixedly connected with an adjustable reciprocating assembly, the adjustable reciprocating assembly is fixedly connected with one end of a sliding rod, the other end of the sliding rod penetrates through the sliding base in a sliding mode and then is fixedly connected with a mounting frame, a gear hob is rotationally mounted in the mounting frame, and one end of the gear hob is fixedly connected with a first servo motor; the inner wall of the other side of the top end of the shell is rotationally connected with one end of a lifting air cylinder, the other end of the lifting air cylinder is matched with a positioning mechanism in an inserted mode, the end, away from the lifting air cylinder, of the positioning mechanism is fixedly connected with an output shaft of a second servo motor, and the second servo motor is fixedly installed on the inner wall of the bottom of the shell.

The invention provides a thermal runaway battery ejection device and a using method thereof.The thermal runaway battery ejection device comprises an ejection mechanism, and the ejection mechanism is close to a battery and used for ejecting the battery; the ejection mechanism is provided with a driving mechanism, and the driving mechanism is used for driving the ejection mechanism to work; a protection plate is arranged on the side, close to the ejection mechanism, of the battery. The device is applied to battery bins and a partition plate, the partition plate is provided with a plurality of battery bins, batteries are located in the battery bins, and sensors are arranged in the battery bins. Two partition plates are arranged, a side plate is arranged between the two partition plates, and a top plate is arranged at the tops of the partition plates. The ejection mechanism is connected with the partition plate. A spring is not used as ejection power, the ejection force cannot be reduced due to long-time use, and it is guaranteed that when the battery is in thermal runaway, enough ejection force is provided for ejecting the thermal runaway battery; the battery thermal runaway can be quickly responded, the battery can be timely popped out, the thermal runaway diffusion risk is reduced, fire explosion is prevented, and peripheral equipment is protected.

The invention discloses a transaction chain classification method and system based on a graph neural network, and belongs to the field of block chain data analysis, and the method specifically comprises the steps: obtaining and preprocessing transaction data from a block chain network, and constructing transaction chain data; constructing a transaction network graph, and training node feature vectors by using an improved graph neural network algorithm; giving tags to part of nodes in combination with an address tag library, and training a depth map neural network model to generate target feature vectors of the nodes; utilizing the model to classify unknown label nodes, and dividing categories according to feature vectors and similarity thresholds; according to the block chain transaction analysis method and system, the accuracy and efficiency of block chain transaction analysis are improved.

The invention relates to the technical field of air filters, in particular to an experimental system and method for detecting an air filter. The system comprises a support frame used for keeping the stability of the experiment system; the test chamber adopts a vertical test channel pipeline, the top and the bottom of the test chamber are respectively provided with a cylinder used for assembling and disassembling an air filter and an absolute filter, and the downstream of the test chamber is provided with double gas sampling ports which are used for separately sampling particulate matter and gas filtering performance tests; the fan subsystem is arranged above the test chamber and is used for simulating air flow under a working condition; the sensor module is used for monitoring various parameters in the testing process in real time; and the data acquisition and processing sub-module is used for receiving the data of the sensor module, analyzing and processing the data and generating a test report. According to the technical scheme, the detection precision can be improved, the test process is simplified, and the filter performance is comprehensively evaluated.

The invention discloses a hydraulic anchor convenient to withdraw for oil field downhole operation, and relates to the technical field of oil field downhole tools. Comprising a body; the anchoring units are all arranged in the main body, and each anchoring unit comprises an elliptical slip which is connected into the main body in a sealed and sliding mode; the mounting seat is fixedly connected to the main body, a connecting frame is fixedly connected to the side, away from the central axis of the main body, of the mounting seat, and a first elastic piece is fixedly connected between the connecting frame and the oval slip; the plugging ring is arranged on the mounting seat, a through hole is formed in the mounting seat, and the plugging ring is used for plugging the through hole in the mounting seat. After anchoring is completed, the mounting seat and the plugging ring are used for separating the elliptical slip from the interior of the main body, so that the influence of pressure fluctuation in the main body on the elliptical slip is reduced, the extrusion force of the elliptical slip on the wall of a casing pipe is kept stable, and the probability that the casing pipe is damaged, anchoring fails and the like is further reduced.

The invention relates to the technical field of hydrogen storage bottle production, in particular to a preparation process of an aluminum alloy casting hollow pipe and an aluminum bar for a hydrogen storage bottle, and the device comprises a base, two positioning seats are fixedly mounted on the upper side of the base, the hollow pipe is placed between the two positioning seats, and an adjusting mechanism is arranged on the base. A fixing frame is fixedly installed on one side of the base, a rotating frame is rotationally connected to the fixing frame, an adjusting frame is arranged on the rotating frame in a sliding fit mode, an end face processing mechanism is rotationally connected to the adjusting frame, and side wall processing mechanisms are arranged at the other two ends of the adjusting frame. The cutting end of the hollow pipe can be trimmed, the cut edge is trimmed, flatness and smoothness of the cut edge are guaranteed, and the sealing performance and strength of the welding or connecting part of the hydrogen storage tank can be improved.

The invention discloses an anesthesia puncture outfit for a surgical patient, and relates to the technical field of anesthesia puncture outfit, the anesthesia puncture outfit comprises a puncture handpiece, the puncture handpiece is provided with a puncture needle sheath; an anesthesia administration part is mounted on the puncture handpiece; the anesthesia administration part is used for sliding on the puncture needle sheath piece; the puncture needle sheath piece is used for guiding the anesthesia administration part; a bubble removing guide piece is mounted on the puncture handpiece; the bubble removing guide piece is used for exhausting; a sampling sealing piece is mounted on the defoaming guide piece; the anesthesia administration part can be matched with a puncture needle sheath piece, a doctor can conveniently and rapidly conduct puncture anesthesia work, the structure is easy to operate, the doctor can more conveniently locate the arachnoid, the accuracy of medicine injection of the subarachnoid space is guaranteed, and the problems that an existing anesthesia puncture outfit for a surgical patient is inconvenient to prompt the doctor to penetrate through the subarachnoid space, and the working efficiency is high are solved. And excessive puncture is easily caused.

The invention relates to the technical field of electronic digital data processing, in particular to a memory bank initialization failure processing method which comprises the following steps: judging whether a memory bank fails to be read or not, if an error memory signal is detected, indicating that the memory bank fails to be read, and marking the memory bank as a memory bank to be detected; running state data, including memory bank performance data and aging condition data, of the to-be-tested memory bank is collected, and a memory bank performance evaluation index and a memory bank aging degree evaluation index are obtained through comprehensive analysis; and comprehensively analyzing to obtain a memory bank exception evaluation index, judging whether the memory bank has a fault according to the memory bank exception evaluation index, and processing the memory bank according to a judgment result. According to the method for processing the initialization failure of the memory bank, provided by the invention, data loss can be prevented, data security can be guaranteed, and system stability and performance optimization can be improved, so that dissatisfaction and troubles caused by system problems of users can be reduced, and the satisfaction degree of the users can be improved.

The utility model relates to an angle steel tower foot welding machining platform which comprises a machining platform body, a plurality of machining supporting legs are fixedly connected to the bottom of the machining platform body and evenly distributed at the four corners of the bottom of the machining platform body, and a tower foot bottom plate is arranged at the top of the machining platform body. A cross-shaped tower foot is arranged at the top of the tower foot bottom plate, a fixed supporting plate is fixedly connected to the top end face of the machining platform, a mounting supporting plate is fixedly connected to one side of the fixed supporting plate, and a hydraulic telescopic rod is fixedly connected to the top of the mounting supporting plate; by means of work of the adjusting screw rod, the limiting clamping plate can move in the direction close to the tower foot bottom plate so as to clamp the tower foot bottom plate, and then the movable clamping plate, the strong spring and the like are used for clamping and limiting cross tower feet of different sizes, so that the cross tower feet can be stably placed on the tower foot bottom plate; and the stability, safety and the like of subsequent welding work are guaranteed, and use is convenient.

The invention relates to the technical field of cable crimping, in particular to a special cable crimping device which comprises a main supporting plate, positioning units are symmetrically installed at the left end and the right end of the main supporting plate, the positioning units are used for installing the main supporting plate in a distribution box, and a horizontal sliding groove is formed in the middle of the main supporting plate. A connecting unit is slidably connected into the horizontal sliding groove through a horizontal sliding block, and a clamping unit used for positioning and crimping the special cable is arranged on the connecting unit. According to the special cable shaping device, the manual shaping element is adopted to shape a special cable, the workload and the working intensity of directly shaping the special cable manually can be reduced, the special cable is effectively shaped in cooperation with the grooved wheel, and meanwhile, the track sleeve is matched with the track rod to limit the moving track of the semicircular abutting block, so that the special cable is more stable and reliable. And the end of the special cable is ensured to stably face downwards, so that the stability of the end of the special cable after being clamped is ensured.

The invention relates to the technical field of heat exchanger manufacturing, in particular to a tube penetrating robot for a tube bundle type heat exchanger, which comprises a tube penetrating workbench, a tube placing assembly is arranged at the rear part of the table top of the tube penetrating workbench, a heat exchange tube to be penetrated is placed on the tube placing assembly, and a robot body is arranged in the middle of the tube penetrating workbench. The end of a mechanical arm of the robot body is provided with a tube grabbing and conveying assembly used for grabbing and conveying a heat exchange tube, and the end of the heat exchange tube is provided with a detection assembly used for detecting the tube penetrating state when the heat exchange tube passes through a tube plate hole. Through the arrangement of the detection assembly, in the pipe penetrating process, when the guiding inclined face of the detection assembly corresponds to a pipe plate hole, the heat exchange pipe can be corrected through guiding of the inclined face, control over the tolerance skewness degree is achieved, and when the pipe opening of the heat exchange pipe excessively deflects, shutdown of the robot body can be controlled through a signal so that deflection correction can be carried out, and the working efficiency is improved. Damage to the robot body, the heat exchange tube and the tube plate caused by continuous tube penetrating is avoided, and the stability, safety and efficiency of tube penetrating operation are improved.

The invention discloses a charging pile monitoring system based on artificial intelligence, which relates to the field of charging pile monitoring and comprises a data acquisition module, a user demand analysis module, a charging index analysis module, a temperature monitoring and adjusting module, a charging state monitoring and early warning module, a man-machine interaction platform and a database. A charging demand alternative set, a temperature state value and a charging state value of a charging pile corresponding to a charging pile user are obtained by judging and analyzing a charging pile user behavior characteristic demand parameter and a charging pile user charging association demand parameter and then counting and analyzing a charging pile temperature state parameter and a charging pile charging state parameter; the charging pile can be ensured to operate in a proper temperature range interval, the charging pile can immediately remind a worker in an abnormal working state, the working pressure and heating of internal elements of the charging pile are reduced in a low charging peak period, the stability of a power grid of the charging pile is ensured in a high charging peak period, and the service life of the charging pile is prolonged.

The invention discloses a reinforced concrete arch bridge steel arch hoisting device and a using method thereof.The reinforced concrete arch bridge steel arch hoisting device comprises a fixing base, an adjusting motor is installed in the upper end of the fixing base, a gear is arranged on an output shaft of the adjusting motor, a fluted disc is connected to one side of the gear, and a bearing disc is fixed to the fluted disc; a counterweight groove is formed in one side wall of the bearing disc, an electromagnet of an L-shaped structure is arranged on the inner wall of the counterweight groove, multiple sets of counterweight blocks are arranged below the counterweight groove and distributed along the rotating path of the bearing disc, a bearing plate is arranged below the counterweight blocks, and an electric push rod is fixed to the bottom end of the bearing plate. The device has the beneficial effects that the proper balancing weight can be selected according to the weight of hoisted goods, the load weight is reduced on the premise that hoisting safety is guaranteed, the device is prevented from running at high power all the time, the energy consumption of the device is reduced, and the use performance is high.

The invention relates to the technical field of hoisting equipment, in particular to heavy hoisting and moving hoisting equipment which comprises a connecting frame and a supporting seat, a movable rod is movably connected to the center of the supporting seat, a driving mechanism and an adjusting mechanism are arranged at the top of the supporting seat, and a fixing mechanism is arranged between the supporting seat and the movable rod. The adjusting mechanism comprises a group of balancing weights slidably connected with the side wall of the lower end of the connecting frame, an auxiliary mechanism is arranged at the upper end of the lifting hook and comprises a connecting rod fixedly connected with the upper end of the lifting hook and a second sliding sleeve slidably clamped with the connecting rod, and a limiting assembly is arranged at the bottom of the second sliding sleeve; after the lifting hook lifts a heavy object to move downwards, the fixing mechanism limits the lifting hook to prevent the lifting hook from rotating, meanwhile, under the action of the auxiliary mechanism, the limiting assembly moves downwards, a lifting ring, hung on the lifting hook, of the heavy object is limited from the two sides, the moving range of the lifting ring in the lifting and moving process of lifting equipment is limited, and the shaking amplitude of the lifting ring is reduced; therefore, the stability of equipment movement is improved.

According to the laser signal coupling misalignment detection and alignment adjustment method, coupling alignment detection is realized through laser alignment, a spinor factor is introduced based on a perturbation method to establish a coupling alignment calculation analysis and adjustment model, and coupling misalignment measurement and alignment are performed; coupling misalignment faults are classified into parallel misalignment, angle misalignment and comprehensive misalignment, and features of the coupling misalignment faults are identified through a frequency spectrum mechanism, motion and dynamics; detection of coupling centering is realized through laser centering, and non-centering measurement and alignment of the coupling are realized by introducing a spinor factor based on a perturbation method, so that axial leads of a unit meet coaxial requirements, undue mechanical stress of the coupling is eliminated, a reasonable centering state of the coupling during operation is guaranteed, and the coupling accuracy is improved. Therefore, normal, stable and long-term continuous operation of the laser machine is guaranteed. And centering dynamic data display is achieved, the operation time is shorter, the precision is higher, and the adaptability is higher.

The invention discloses an improved sliding-mode active-disturbance-rejection control method for a two-stage energy storage converter, and the method comprises the steps: firstly, building a mathematical model of the energy storage converter in a three-phase static coordinate system, converting the mathematical model into a d-q rotating coordinate system, converting the mathematical model into a second-order active-disturbance-rejection normal form on the basis, and then carrying out the design of a super-spiral expansion state observer. In order to reduce system buffeting, a discontinuous switching item sign function in the super-spiral expansion state observer is replaced by a hyperbola function; secondly, a variable gain function which can change in real time along with observation errors is designed to replace the linear gain of ST-ESO, so that the disturbance observation capability is improved; and then, a superhelix integral terminal sliding mode is introduced as a feedback controller, so that the control precision and the convergence speed of the system are improved, and the robustness of the system is better improved.

The artificial fish nest comprises a base and incubation plates which are arranged on the base and used for spawning, two side plates are installed on the base, a plurality of supporting pipes which are arranged from top to bottom are fixedly installed between the two side plates, the incubation plates are symmetrically arranged relative to the supporting pipes, and the incubation plates are fixedly installed on the base. The incubation device comprises an incubation plate, the edge of the incubation plate is connected with a sleeve, the sleeve is rotationally arranged on a supporting pipe in a sleeving mode, penetrating grooves are further formed in the position, overlapped with the sleeve, of the supporting pipe in an annular array mode, meshing teeth are slidably arranged in the penetrating grooves, and inner tooth grooves matched with the meshing teeth are formed in the inner wall of the sleeve. When the meshing teeth are meshed with the inner tooth grooves in the inner walls of the sleeves, the sleeves and the hatching plates can be limited, stability of the hatching plates is kept, and when the meshing teeth retract into the penetrating grooves, limitation can be released, the angles of the hatching plates can be conveniently adjusted, and water flow among the hatching plates can be conveniently kept smooth.

The invention relates to the technical field of electronic equipment, in particular to an electrical self-adaptive control method, a control system and a conversion socket. The control method comprises the following steps: detecting a plug replacement action, acquiring a physical connection state of a plug through a sensor module, and recording plug replacement time and frequency; the type of the plug is identified, a plug specification database and a plug identification unit which are arranged in the charging head are used for identifying specification characteristics of the plug, and the specification characteristics comprise rated voltage, rated frequency, maximum bearing current and physical structure characteristics of the plug. According to the electrical self-adaptive control method and system, the problem that in the prior art, after a plug of a charging head is replaced, electrical parameters cannot be effectively adjusted, and equipment cannot be effectively protected is solved, and the self-adaptive capacity and safety of the charging head are improved.