45results about How to "Adjustable" patented technology

The embodiment of the invention discloses a surface temperature inversion method and device based on remote sensing satellite data, and a medium, and relates to the technical field of remote sensing, and the method comprises the steps: receiving a heat island effect analysis demand triggered by a user, obtaining satellite remote sensing data of a target region and a corresponding metadata file based on the heat island effect analysis demand, and storing the satellite remote sensing data in the target region; processing the satellite remote sensing data to determine earth surface radiation parameters; the atmospheric features and the earth surface features of the target area are evaluated through the metadata file and a pre-obtained normalized vegetation index, a dynamic adjustment factor corresponding to the target area is determined, a preset single-window algorithm model is optimized through the dynamic adjustment factor, and an optimized single-window algorithm model is determined; and inputting the surface emissivity, the atmospheric transmittance, the brightness temperature value and a pre-acquired atmospheric average action temperature into an optimized single window algorithm model for calculation, and determining a surface temperature distribution diagram of the target area for heat island effect analysis.

The application relates to the technical field of powder production and processing equipment, in particular to a flow guide device for airflow mill pulverization and a pulverizer adopting the flow guide device, wherein the flow guide device for airflow mill pulverization comprises a device body, a flow guide area, a collection area and a drainage area are formed in the device body, and the collection area and the drainage area are distributed around the flow guide area; when the device body is matched with a pulverization cavity and the pulverization cavity is in a working state, airflow sprayed from a nozzle flows to the lower part of the collision area after collision in the middle of a pulverization area and then flows into the flow guide area and the drainage area in sequence; the collection area collects coarse particles sinking downwards, the collection area is formed with an opening, coarse particles in the collection area can flow out through the opening, the flowed-out coarse particles can flow into the drainage area together with airflow and flow out of the drainage area; the flowing direction of airflow flowing out of the drainage area is towards the top of the pulverization cavity. The flow guide device for airflow mill pulverization can improve powder preparation efficiency and improve the vortex state at the bottom of the pulverization cavity.

The invention discloses a dual-mode communication method and system based on intelligent decision making. The method comprises the following steps: acquiring historical operation data and actual operation data of HPLC (High Performance Liquid Chromatography) and HRF (High Performance Framework); creating a reinforcement learning model which comprises a state space, an action space and a reward function; the state space is a combined vector of a dual-mode channel quality index, the action space comprises HPLC priority, HRF priority and dual-mode self-adaption, and the reward function is a weighted calculation formula of throughput, power consumption and packet loss rate; and performing iterative training on the reinforcement learning model based on the historical operation data to obtain an intelligent optimization model, inputting the actual operation data into the intelligent optimization model to obtain an optimal action, and adjusting the dual-mode communication parameters according to a corresponding preset parameter adjustment rule. According to the invention, communication mode selection and parameter adjustment are more suitable for actual environment requirements, the communication efficiency is improved, the energy consumption and data loss risk are effectively reduced, the system architecture is simplified, and the deployment cost and response delay are reduced.

This invention discloses a dynamically adjustable forest gap simulation device, belonging to the technical field of ecological experimental equipment. The device includes a supporting column, a supporting frame, a driving component, a shading component, and an intelligent control unit. The supporting column is a multi-stage telescopic structure equipped with a field anchoring mechanism. The supporting frame consists of a central connecting part and multiple radially telescopic and foldable radial arm-shaped components. The shading component is laid on the arm-shaped components to form a variable shading area. The driving component drives the arm-shaped components to extend and retract. The intelligent control unit uses off-grid photovoltaic power and can adaptively control the movement of the arm-shaped components according to preset strategies, light intensity, and wind speed parameters, realizing dynamic forest gap simulation and dynamic restoration of wind-disturbed light spots. This invention features high modularity, accurate simulation, stable structure, and suitability for long-term unattended field experiments, effectively solving the technical problems of traditional forest gap simulation devices, such as static fixation, poor dynamic effects, low intelligence level, and insufficient field adaptability.

The application discloses a shear connector, a steel-concrete composite beam containing the shear connector and a construction method of the steel-concrete composite beam. The shear connector comprises an inverted truncated cone type cylinder (7), a stiffener, a cover plate, a penetrating steel bar (8) and a high-strength bolt (21); the stiffener comprises an integrally formed stiffener bottom plate (13) and a stiffener side plate (14), the size of the stiffener bottom plate is consistent with the size of the lower opening of the cylinder, and the stiffener bottom plate is attached to the lower opening of the cylinder; the stiffener bottom plate is provided with a second connecting hole for connecting the high-strength bolt; the stiffener side plate is arranged around the stiffener bottom plate and is attached to the inner wall of the cylinder; the height of the stiffener side plate is lower than that of the first connecting hole; the cover plate covers the upper opening of the cylinder; the penetrating steel bar transversely passes through the cylinder through the first connecting hole and leaves a connecting section on each side of the cylinder; and the high-strength bolt connects the stiffener bottom plate through the second connecting hole. The application realizes the disassembly and replacement of each component of the shear connector and the prefabricated bridge deck; and the structure form and stress performance of the shear connector are optimized.

The application relates to the field of micro-electro-mechanical systems, and specifically discloses a micro-cantilever beam deformation correction method and system for MEMS sensor output errors, which comprises the following steps: exciting a composite vibration mode of a micro-cantilever beam through a multi-mode active excitation signal, collecting a dynamic response signal and identifying a deformation state parameter by using a deep learning model, generating laser micro-processing parameters based on the identification result to perform selective material removal or annealing treatment, establishing a deformation trend prediction model to perform pre-compensation adjustment, and ensuring the correction effect through a closed-loop verification mechanism; the system comprises a multi-mode active excitation control module, a dynamic response collection and processing module, a deformation identification and state evaluation module, a laser micro-processing control module, a deformation trend prediction and pre-compensation module, a correction effect verification and iterative control module, and a system integration and data management module. The application solves the problem of sensor errors caused by physical deformation of a micro-cantilever beam, and significantly improves the precision and long-term stability of a MEMS sensor.

The invention provides a robot navigation method and device based on edge and cloud cooperative computing. The method comprises the following steps: acquiring real-time environment sensing data through a body sensor of the robot; executing real-time positioning and map construction, and generating a local obstacle avoidance instruction; generating a task unloading decision according to the task division strategy, the current network state and the server resource state; and fusing the optimized global map, the long-term trajectory prediction result and the local obstacle avoidance instruction to generate a global comprehensive navigation strategy of the robot. According to the method, robot navigation tasks are intelligently divided and dynamically unloaded through an innovative edge and cloud cooperative computing framework, the low delay of the edge side and the powerful computing power of the cloud are fully utilized, and the core bottleneck that the computing power of a robot body is limited can be effectively solved. The overall delay of the navigation system is obviously reduced, and the navigation efficiency, safety and intelligent level in a large complex scene are improved.

The invention provides a vehicle power system suitable for lunar polar region exploration and a verification method, and relates to the technical field of deep space exploration, the system comprises a configurable energy module, a driving motor transmission mechanism, a power conversion management system, a thermal control subsystem and an autonomous driving controller; the energy module comprises a space fuel cell module, a wide-temperature lithium ion battery module, a solar cell panel module and a radioactive isotope battery module, and one or more of the modules can be selected to be combined according to task requirements. According to the invention, full-scene energy supply coverage of the monthly day, the monthly night and the permanent shadow area can be realized, uninterrupted propulsion of detection and transportation tasks is supported, and the task execution efficiency and the detection coverage range are greatly improved; meanwhile, it can be ensured that the driving power is accurately matched with the driving requirement of the complex terrain in the polar region of the moon, the driving power calculation deviation is effectively reduced, and the terrain passing capacity and operation stability of the vehicle are remarkably improved.

The present application relates to the technical field of block chain, and particularly relates to a kind of identity authentication encryption method based on block chain node user, comprising the following steps: step 1: build user identity information database, obtain user identity information data in database storage;Step 2: traversing reading the user identity information data stored in database, extract character data in the user identity information data stored in database, and apply character data to build the encryption database used when user is authenticated on block chain node;The method in the present application further constructs the key database with the identity information of the user on the basis of the encryption algorithm used when the existing block chain node user is authenticated in the process of executing its steps, so that the further encryption of the key database constructed is applied when the block chain node user is authenticated, so that the block chain node user is more secure when being authenticated.

The utility model belongs to container auxiliary equipment technical field discloses a kind of articulated type lifting steering wheel devices for container traction system, the device aims at the problem that existing warehouse container is difficult to adjust position and low turnover efficiency due to lack of moving facilities, provides a pair of flexible dismounting lifting steering wheel. Mainly by walking wheel, hydraulic cylinder, cylinder rod, rotary wheel frame, hydraulic cylinder crossbeam and rotary wheel mounting seat are formed;Among them, hydraulic cylinder drives walking wheel lifting by cylinder rod, rotary wheel frame and cylinder rod are equipped with bearing to realize 180 ° steering function, rotary wheel frame side is equipped with traction connecting rod seat, and steering wheel is connected by traction connecting rod. Hydraulic cylinder crossbeam is embedded in the clamping groove of rotary wheel mounting seat at both ends, and is fixed by pin shaft;The rectangular connecting plate outside rotary wheel mounting seat is connected with container bottom by bolt;The utility model has lifting adjustment, free steering and quick dismounting function, solve the flexible displacement, accurate positioning and efficient traction problem of container in narrow space, significantly improve cargo loading and unloading efficiency.

The invention discloses an intelligent regulation and control system and method for tea fermentation, and relates to the technical field of tea processing, and the method comprises the following steps: S001, establishing a synchronous acquisition process, continuously recording a wind speed rhythm, a spraying rhythm, air pressure, humidity and leaf surface temperature, and generating a damp-heat cross plot according to a time sequence for identifying an overlapping relationship between wind flow and a humidifying rhythm; and S002, identifying a beat overlap region based on the damp and hot cross plot, setting a spray collection window and a spray stop buffer window in the beat overlap region, and generating phase pointer data for time sequence coordination by adjusting spray residence time and a diffusion range. According to the method, rhythm overlapping recognition is achieved through multi-parameter synchronous collection and a damp-heat cross plot, wind and fog dislocation regulation and control are achieved based on a phase pointer, evaporation stress is slowly released by combining measures such as fog particle preposition, temperature rise gentle slope and wind direction guiding, closed-loop control is constructed based on a breathing rhythm index, and self-adaptive steady-state regulation of the fermentation environment is achieved.

This invention discloses a method and system for land resource spatial utilization planning, relating to the field of land planning. The method includes: acquiring relevant data of the planning area and performing standardized processing; constructing spatiotemporal land use units containing a time dimension based on a time-division strategy; receiving temporary land use event information and mapping it to corresponding spatiotemporal land use units; performing conflict verification based on preset constraint rules and generating permit determination results; comprehensively evaluating and ranking candidate schemes that pass the verification; and outputting temporary land use permit results, a control list, and audit logs. The system includes a data management module, a spatiotemporal unit construction module, a rule engine module, a ranking and evaluation module, and a result output module. This invention achieves integrated management of spatial and temporal dimensions, supports dynamic planning and risk identification driven by temporary land use events, and improves the standardization and traceability management level of land resource spatial utilization.

This invention relates to the field of electronic information technology and discloses a zero-carbon airport BIPV photovoltaic direct-drive low-voltage lighting system. It addresses the problem in traditional methods where the MPPT algorithm easily gets trapped in local optima under dynamic shading and irradiance variation conditions, failing to achieve efficient global power point tracking. The method includes: a data acquisition module that collects photovoltaic array voltage, current, and power parameters; an environmental monitoring module that detects environmental changes and generates variation signals using irradiance sensors and cameras; an algorithm initialization module that sets the search range and divides the power curve region based on data and signals; a global search module that scans multiple peaks and traverses the global space to identify the maximum power point; a local optimization module that finely tracks and corrects the step size for peak regions; and a control output module that generates commands to drive the inverter to adjust its operating point and provides status feedback. Through module collaboration, efficient operation of the photovoltaic direct-drive low-voltage lighting is achieved, making it suitable for zero-carbon airport environments.

This utility model relates to the field of building engineering technology and discloses a vibration-damping beam for building construction. It includes a main body of the vibration-damping beam, a first fixing block fixedly connected to the bottom surface of the main body, a first shock absorber rotatably connected to the left side of the first fixing block, a connecting member rotatably connected to the left side of the first shock absorber, a movable column fixedly connected to the bottom of the connecting member, a positioning column fixedly connected to the top of the connecting member, a second shock absorber rotatably connected to the left side of the connecting member, a hollow column slidably connected to the bottom end of the movable column, and a support column fixedly connected to the bottom end of the hollow column. In this utility model, through the combined action of a compression spring, a movable column, a support column, and a connecting member, the compression spring can drive the movable column to move up and down. The movable column transmits the energy generated by vibration to the first and second shock absorbers, enabling the main body of the vibration-damping beam to achieve multi-dimensional force synergy to reduce impact, thereby exhibiting excellent vibration damping performance.

The invention belongs to the technical field of computers and artificial intelligence, particularly relates to an auxiliary teaching material generation method and system based on an artificial intelligence technology, and aims to solve the problems that existing teaching materials are low in production efficiency, insufficient in individuation degree and difficult to generate visual materials. The method comprises the steps of obtaining and analyzing a teaching material generation request to determine a teaching range requirement and a core knowledge point; according to the requirements and the core knowledge points, aggregating related contents from a plurality of resource libraries, and extracting and generating a hierarchical knowledge point structure by using an artificial intelligence large model; and generating at least one teaching material including an interactive animation, a knowledge card or a mind map based on the knowledge point structure. According to the invention, the teaching materials can be automatically, intelligently and individually generated, the lesson preparation efficiency is remarkably improved, the expression form of the teaching resources is enriched, and the teaching effect is improved.

The utility model relates to a neck scarf technology field, and disclose an integrated warm-keeping neck scarf, including scarf body, windproof layer, warm-keeping layer and skin layer, scarf body as the basic structure, through multilayer design has promoted warm-keeping performance, windproof effect and wearing comfort, windproof layer adopts 30D super fine denier nylon knitting, has excellent windproof performance, warm-keeping layer fills hollow polyester down-like fiber and natural wool mixture, both light and warm, skin layer is made of mulberry silk, long pile cotton and conductive fiber blending, soft and breathable and antistatic, scarf both ends are equipped with pocket, inside is equipped with antiskid strip and scratchproof gauze, practical and durable, in addition, the scarf one end is equipped with zipper, can access the inner partition after opening, it is convenient to place or take out memory cotton and other additional warm-keeping materials, memory cotton can be fixed in the inner partition through magic tape, easy to disassemble and wash.

The invention provides an acellular matrix fiber woven scaffold as well as a preparation method and application thereof, and belongs to the technical field of biomedical materials. The acellular matrix fiber woven scaffold comprises a woven structure unit, wherein the woven structure unit comprises warp yarns and a plurality of acellular matrix fiber weft yarns; the acellular matrix fiber is prepared by cutting an acellular matrix paper-based material at equal intervals; the plurality of acellular matrix fiber wefts are arranged in parallel according to a bionic trend and are interwoven and fixed through the warps, so that a bionic pattern simulating natural tissue fiber arrangement is formed in the weaving structure unit. The acellular matrix fiber scaffold is prepared by innovatively applying a weaving technology, the scaffold can improve the cell loading efficiency, is beneficial to self-repair and reconstruction of damaged tissues, provides suitable survival and growth conditions for cells, and has good application prospects in the field of biomedical engineering, especially in the aspects of tissue repair and regenerative medicine. And huge application potential is shown.

The invention discloses an intelligent low-temperature-resistant collision buffering device suitable for an LNG (liquefied natural gas) floating transmission system, and relates to the technical field of safety protection of the LNG floating transmission system.The intelligent low-temperature-resistant collision buffering device comprises a composite buffering device, a shell and a bottom plate; an outer rigid supporting layer, a middle energy absorption layer and an inner flexible contact layer are sequentially arranged from outside to inside, the outer rigid supporting layer, the middle energy absorption layer and the inner flexible contact layer are fixedly connected into a whole in a gluing or integral forming mode, and the outer side of the composite buffering device and the outer side of the internal mechanism are wrapped with the shell. The protective shell is fixedly connected with the bottom plate to form a protective shell; through deep integration of material innovation, structure optimization and intelligent control, the technical problems of low-temperature failure, low energy absorption efficiency, poor posture adaptation, no intelligent regulation and control and the like of a traditional buffer device in an LNG floating transmission scene are comprehensively solved, and the reliability, the adaptability and the intelligent level of collision protection are remarkably improved.

The invention provides a preparation method of a molecular spectrum substrate with collimation and quantitative near-field enhancement functions and the molecular spectrum substrate with the collimation and quantitative near-field enhancement functions. According to the preparation method of the molecular spectrum substrate with the collimation and quantitative near field enhancement functions, the quantitative corresponding relation between the arrangement mode and the local electric field intensity can be achieved through analytical calculation in the design stage, and therefore the enhancement multiple can be predicted and adjusted. Due to the collimation of the molecular spectrum substrate, enhanced signals have clear spatial directivity, the molecular spectrum substrate can be used for angle resolution spectrum detection, and molecular systems which can generate response only under the incident condition in a specific direction (such as perpendicular to the surface) can be effectively excited. As the light field is limited to propagate in a single collimation direction, the obtained signal has high purity and is not mixed with backgrounds or scattering components from other angles, so that the direction selectivity and the result reliability of molecular spectrum measurement are remarkably improved.

The application discloses a coal mine emergency resource management and visual scheduling system based on artificial intelligence, the system collects environment and resource data in real time through an underground sensor network, uses an algorithm to automatically predict disaster risks, calculates resource requirements and plans an optimal scheduling route. All information is integrated and visually displayed on a three-dimensional mine map to form an intuitive three-dimensional combat map to support interactive decision-making of commanders. After issuing an instruction, the system monitors the execution state in real time and can dynamically correct early warning and automatically optimize the scheduling scheme according to feedback information and disaster changes. The application solves the problems of information dispersion, decision-making dependence on experience and rigid response in the traditional emergency system, realizes scientific, rapid and self-adaptive precise scheduling of coal mine emergency resources, and significantly improves the efficiency and reliability of emergency rescue.

This invention discloses a simulated robotic arm control system for power line construction, comprising: a perception fusion module for real-time acquisition and fusion of construction environment information, target object information, and robotic arm status information to construct a work environment model; a decision control module, communicatively connected to the perception fusion module, which generates adaptive work control commands based on a pre-stored power operation process library and control algorithm library, and according to the perceived information; and an execution module, communicatively connected to the decision control module, including a multi-degree-of-freedom simulated robotic arm and an end effector, for receiving and executing control commands to complete power construction operations. This invention, through deep integration of multimodal perception and intelligent decision control, significantly improves the adaptability and operational precision of the robotic arm in complex dynamic environments, enabling the simulated robotic arm to possess real-time judgment and adjustment capabilities similar to a skilled worker, thereby stably completing high-precision operations in scenarios such as overhead line work and precision assembly.

This invention relates to a multi-dimensional collaborative intelligent energy management and control system. The system includes: a data acquisition unit, a data processing unit, a digital twin and risk assessment unit, and a multi-objective collaborative optimization and visualization unit. It acquires multi-dimensional raw data and integrates it into a multi-source dataset; processes the multi-source dataset to generate a standardized dataset and a multi-dimensional feature set; reconstructs the physical topology and equipment parameters of the energy system, constructs a real-time synchronous digital twin, and combines the multi-dimensional feature set to obtain the operating status, analyze risk factors, and output early warning results, integrating and generating an operating status assessment report; obtains optimization benchmarks based on the assessment report, constructs a multi-agent reinforcement learning system using the multi-dimensional feature set to obtain energy dispatching strategies, decomposes them into executable control commands and obtains execution results, and simultaneously builds a multi-zone monitoring interface to visualize the entire energy management and control process data. This system achieves energy management and control using a multi-dimensional collaborative mechanism.

The invention discloses an environment-friendly geotextile multi-layer laminating device integrated with a preheating function, and relates to the technical field of environment-friendly geotextile processing, the environment-friendly geotextile multi-layer laminating device comprises a preheating compression roller and a preheating component, and the preheating component is mounted in the preheating compression roller. According to the environment-friendly geotechnical cloth multi-layer laminating device integrated with the preheating function, efficient preheating and multi-layer laminating of geotechnical cloth are achieved through cooperative work of the preheating pressing roller, the preheating component, the supporting component, the adjusting control component and the base component. The preheating compression roller is made of a special material and is heat-conducting and wear-resistant, so that the geotechnical cloth is uniformly heated, and local over-temperature is avoided; the preheating component heats a preheating compression roller to a preset temperature through an accurate temperature control system, so that different requirements are met; the supporting component provides a stable structure for the device, and the stability and reliability of high-speed operation are ensured; key parameters such as preheating temperature and compression roller pressure are monitored and adjusted by the adjusting control component, so that precise and consistent lamination is ensured; the base component serves as a device foundation, provides supporting and fixing, and is convenient to install and debug.

The application discloses a multi-model reasoning method and device based on a graph structure, a medium and a program product, wherein the method comprises the following steps: querying a task target node in a graph database and starting from the task target node, and performing reasoning path expansion in the graph database according to a corresponding driving model, wherein the graph database comprises a plurality of directed acyclic graphs, and each directed acyclic graph is obtained by mapping metadata of a registered analysis model; generating a task topology execution graph according to model nodes involved in the expanded reasoning path and the corresponding driving model; and sequentially scheduling actual execution of each model node according to the task topology execution graph, and obtaining an explanation result corresponding to the task target node. The application improves the reasoning execution efficiency by explicitly attributing the analysis model and optimizing the reasoning path by using graph calculation, and improves the intelligence, performance and interpretability of multi-model collaborative analysis.

The application discloses a highway route design evaluation system based on data analysis, relates to the technical field of route design, converts natural language into a target vector, outputs current evaluation data based on historical design parameter data and operation effect data, inputs the target vector into a mapping relationship model to generate a design parameter candidate set, and verifies the design parameter candidate set through a sample guiding mechanism, iteratively corrects the design through error feedback and dynamic weight adjustment, samples in a parameter space to construct a path control point sequence and configures structure parameters, and the application realizes automatic generation of design parameters from the target vector through a bidirectional coupling mechanism of forward modeling and reverse modeling, realizes multi-round optimization iteration through error feedback, and improves the adaptability of the design result to the user target. Compared with a traditional passive evaluation process, the application has the advantages of target driving, closed-loop optimization and adaptive adjustment, significantly improves the intelligent degree and multi-target consistency of route design, and has strong practicality and technical progressiveness.

This invention relates to an adjustable tension three-dimensional knitting yarn carrier, comprising a mounting frame, a yarn guide, and a rotating shaft. The mounting frame has a rotational damping mechanism and a damping adjustment mechanism on its left and right sides, respectively. The rotational damping mechanism includes a yarn bobbin, a coil spring, and a coil spring sleeve. A coil spring, a coil spring sleeve, and a yarn bobbin are sequentially fitted onto the outer side of one end of the rotating shaft. The two legs of the coil spring are fixed to the rotating shaft and the coil spring sleeve, respectively. The coil spring sleeve and the yarn bobbin are fixedly connected. The damping adjustment mechanism includes a pressure rod, a pressure plate, a counter-rotating wave spring, a pressure plate, and a connecting screw. The other end of the rotating shaft is inserted into the pressure rod, which can rotate with the rotating shaft. The pressure rod is fixed to one side of the pressure plate. The counter-rotating wave spring is installed between the mounting frame and the pressure plate. The pressure plate is fixed to the mounting frame by the connecting screw, and the pressure plate presses tightly against the pressure plate. The counter-rotating wave spring is sleeved on the pressure rod. This invention can achieve uniform and adjustable yarn tension while greatly increasing the yarn feed rate, thereby improving the knitting quality of three-dimensional knitted fabrics.

The utility model discloses a positioning fixture for airplane seat armrest production, which forms stable locking through the combination of the insertion matching of an insertion pipe and a fixing sleeve and the limiting matching of a steel ball and a conical hole, remarkably improves the assembling convenience and the connection reliability of the fixture, and improves the production efficiency through the sliding and rotation of an L-shaped push block and a first screw rod through a through groove. The clamping range of the side edge of the handrail can be flexibly adjusted through the cooperation with locking of a first nut, the clamping device adapts to the handrails of various sizes, multi-angle adjustment and rapid fixing are achieved through a hinge structure of a pin shaft and a groove and a locking mode of a second nut, the adaptability of the clamp is enhanced, and a motor drives a threaded shaft to drive an inner threaded pipe and a rubber ejector block to move. The device can abut against the armrest to complete positioning, meanwhile, constraint can be relieved through reverse rotation, the whole process is easy and convenient to operate, the positioning precision is high, rapid clamping and positioning in the aircraft seat armrest machining process are effectively improved, and meanwhile the device has the advantages of multi-direction adjustment and stable clamping.

The utility model discloses a circuit structure of a 108MHz-678MHz high-suppression large-bandwidth electrically tunable filter, which belongs to the technical field of electrically tunable filters and comprises a circuit structure of a 108MHz-225MHz tuned filter, a circuit structure of a 225MHz-400MHz tuned filter, a circuit structure of a 108MHz-225MHz tuned filter and a circuit structure of a 108MHz-678MHz straight-through path. One end of each of the circuit structures of the 108MHz-225MHz tuned filter, the 225MHz-400MHz tuned filter and the 108MHz-225MHz tuned filter and the circuit structure of the 108MHz-678MHz straight-through path is connected with the radio frequency switch U1, the other end of each of the circuit structures of the 108MHz-225MHz tuned filter and the circuit structure of the 108MHz-678MHz straight-through path is connected with the three low-pass filters and the radio frequency switch U2, and the other ends of the three low-pass filters are connected with the radio frequency switch U2. The main magnet ring inductor of the electrically tunable filter is a hollow coil wound by an enameled wire. According to the utility model, the size of the electrically tunable filter is reduced by reducing the number of inductors; through the testing tool, the pins are prevented from being damaged, and the testing efficiency and accuracy are improved.

The invention relates to the technical field of power system automation, and discloses a multi-energy power distribution network intelligent switching method, system, equipment and medium based on adaptive control, and the method comprises the steps: collecting the multi-source heterogeneous data of power grid operation data, meteorological information, load characteristics and the like in real time through constructing a multi-dimensional state sensing network; an intelligent decision-making model is established based on the deep Q network, and autonomous learning and dynamic optimization of a switching strategy are realized; a multi-time-scale coordination control framework is designed, fault detection is completed at the microsecond level, switching decision is completed at the millisecond level, and system stable adjustment is completed at the second level; a hybrid energy storage buffer technology is developed, and switching transient impact is effectively inhibited; and a multi-objective optimization function considering equipment life and economic cost is established, and comprehensive balance of power supply reliability, economy and equipment health management is realized.

The invention relates to a suspension type tube plate welding machine head which comprises a machine head body, a welding torch, a welding torch adjusting mechanism, a wire feeding mechanism and a center positioning shaft are arranged at one end of the machine head body, and at least two supporting rod assemblies capable of being expanded in the radial direction are arranged around the machine head body. One end of the integrated box body is connected with the other end of the machine head main body, a lifting appliance is fixed to the top of the integrated box body, and a central pipe is arranged in the integrated box body in the axial direction in a penetrating mode; the center positioning shaft is connected with one end of the center pipe through an expansion sleeve assembly. A sliding ring assembly is arranged in the integrated box body and coaxially arranged on the periphery of the center pipe in a sleeving mode. And a water-gas sharing flow channel surrounding the slip ring assembly is also arranged in the integrated box body. By means of the modular design and the highly-integrated box body, the whole machine is compact in structure, the weight is obviously reduced, rapid hanging, flexible moving and accurate positioning can be achieved through the top lifting tool, and the adaptability to large workpiece multi-position welding and narrow space operation is greatly improved.