337results about How to "Improve connectivity" patented technology

The invention relates to a traffic flow prediction optimization method based on an intelligent optimization algorithm, which is applied to the technical field of traffic flow prediction. The system comprises a multi-modal data acquisition and fusion module, a hybrid deep learning prediction module, an intelligent parameter optimization module, an integrated learning module, a multi-scale error correction module, a prediction result analysis and visualization module, a distributed learning and privacy protection module and the like. Wherein the hybrid deep learning prediction module adopts an attention mechanism to fuse models such as CNN, Transform and LSTM, and introduces an adaptive error correction mechanism, so that the prediction precision is remarkably improved; the intelligent parameter optimization module accelerates the model search efficiency by using technologies such as quantum computing and swarm intelligence optimization; the integrated learning module and the adversarial training strategy enhance the robustness and generalization of the model; and the multi-scale error correction module adopts a time sequence decomposition and self-adaptive online learning method to improve the accuracy of long-term and short-term prediction.

The invention relates to the technical field of information retrieval, in particular to an interdisciplinary knowledge graph construction system and method, and the system comprises a relation matrix construction module which analyzes a node relation based on nodes in a knowledge graph, carries out the statistics according to an association frequency, selects interdisciplinary nodes to construct an association matrix, calculates a node fitting degree, and determines an association node set; and generating an interdisciplinary incidence relation matrix. According to the method, through correlation frequency statistics and fitting degree calculation of interdisciplinary nodes, effective construction of comprehensive correlation between the nodes, decomposition of the feature matrix and elimination of non-key feature items, the sparsity of the matrix is improved, data are more concise and clear, and through screening of low-weight elements, reservation of important node relation and further optimization of matrix feature expression, the method has the advantages of being high in robustness and high in reliability. In the coupling analysis and partitioning process of the nodes, redundant connection of the low-coupling-degree nodes is reduced, the core relation is highlighted, the node structure is recombined, and the accuracy and compactness of the multidisciplinary knowledge graph are remarkably improved.

The invention relates to the technical field of data mining, in particular to a method and a system for generating a printed circuit board design drawing. The method comprises the following steps: obtaining customer demands, structuring the customer demands into circuit board design demand data, and then carrying out mode clustering to obtain design demand mode data; acquiring a historical design log, performing circuit board hierarchical design clustering based on the historical design log to obtain historical hierarchical design data, and performing wiring structure topology analysis to form a wiring structure model set; quantifying a wiring demand, obtaining wiring demand data based on demand mode data, and matching the hierarchical wiring structure model set to form a matching model; the layout component is used for carrying out component layout on the matched wiring structure model, generating component layout data and planning the direction of a signal line to form a hierarchical structure model; and performing electromagnetic interference simulation, optimizing the hierarchical structure model based on simulation data to balance heat flow, and finally generating a circuit board design drawing. The design efficiency of the circuit board can be improved.

The invention provides a laser stripe center extraction method based on gray coefficient binarization, and aims to solve the problems of non-uniform brightness distribution of laser stripes, difficulty in extraction of weak stripes, breakage of center lines and the like. The method comprises the following steps: enhancing an image; realizing self-adaptive threshold segmentation through a local gray scale statistical model and a peak variable coefficient by using a gray scale coefficient binarization method; extracting a sub-pixel-level center point by combining a secondary positioning method of skeleton constraint; and carrying out fitting smoothing by adopting bicubic interpolation and a smooth spline method. According to the method, the problem of extraction of strong and weak stripes under complex working conditions is effectively solved, and the precision, connectivity and robustness of stripe center positioning are remarkably improved while background noise is suppressed.

The water dispenser comprises a first waterway board, a second waterway board, a water pump, a cold tank and a hot tank, the first waterway board is provided with a water distribution pool, a water inlet waterway and a water outlet waterway, the second waterway board is provided with a water drainage waterway, the water pump is suitable for pumping water to the water distribution pool, and the cold tank is suitable for being communicated with the water inlet waterway to receive water from the water distribution pool. The cold tank is suitable for being communicated with the water inlet waterway so as to receive water from the water distribution pool, is suitable for being communicated with the water outlet waterway so as to output refrigerated water and is also suitable for being communicated with the water drainage waterway so as to discharge water in the cold tank, and the hot tank is suitable for being communicated with the water inlet waterway so as to receive water from the water distribution pool, is suitable for being communicated with the water outlet waterway so as to output heated water and is also suitable for being communicated with the water drainage waterway so as to discharge water in the hot tank. The first waterway plate is provided with the corresponding waterway, the second waterway plate is also provided with the corresponding waterway, at least part of silicone tubes in a traditional water dispenser are replaced, use of the silicone tubes is reduced, the water leakage problem is effectively avoided, module and assembly are facilitated, and the production efficiency is improved.

The present invention provides an integrated structure composite conduction type solid oxide cell and a preparation method thereof, and belongs to the technical field of solid oxide fuel cells, the integrated structure composite conduction type solid oxide cell comprises: an integrated skeleton, the integrated skeleton comprises an electrolyte layer and porous layers on two sides, the integrated skeleton is composed of a proton conductor material and an oxygen ion conductor material, the molar ratio of the proton conductor material to the oxygen ion conductor material is 1: (0.8-1.2), and the proton / oxygen ion composite material is prepared by mixing and sintering the proton conductor material with the average particle size of 50-60 nm and the oxygen ion conductor material with the average particle size of 0.1-0.2 [mu] m; the catalyst layer is positioned on the pore wall of the porous layer. According to the invention, by limiting the proportion and the particle size of the proton conductor material and the oxygen ion conductor material, more conduction type paths are prepared, and the output power of the solid oxide battery is improved.

The invention discloses a dense sandstone multi-scale pore network modeling method and system, and relates to the technical field of digital rock physics, and the method comprises the steps: constructing a low-resolution three-dimensional digital rock core based on a CT three-dimensional gray image of a rock core sample of dense sandstone; constructing a coarse-scale pore network model based on the low-resolution three-dimensional digital core and a maximum sphere algorithm; respectively carrying out a high-pressure mercury injection experiment and a nuclear magnetic resonance experiment on the rock core sample to obtain throat radius probability distribution and T2 value probability distribution; based on structure parameters and distribution characteristic information of macropores and throats, throat radius probability distribution and T2 value probability distribution, determining multi-scale pore throat size distribution and coordination number distribution of the rock core sample through fitting; and fusing the multi-scale pore throat size distribution and coordination number distribution of the core sample based on a random network algorithm to generate a multi-scale pore network model of the core sample. According to the method, the technical problem that the multi-scale pore space of the real compact sandstone reservoir cannot be represented in the prior art is solved.

The invention discloses an assembly type prefabricated reinforced concrete beam, a building and a construction method. The assembly type prefabricated reinforced concrete beam comprises a first assembly prefabricated beam, the first assembly prefabricated beam comprises a first structure reinforcing part and a first pouring part, and a first pouring groove is formed in the first structure reinforcing part; the second assembly precast beam comprises a second structure reinforcing piece and a second pouring piece, and a second pouring groove is formed in the second pouring piece; the first assembly precast beam and the second assembly precast beam are configured to be arranged in a crossed mode, and the first pouring groove and the second pouring groove are made to communicate with each other. The manufacturing cost is reduced, and assembly type production is met so as to improve the construction efficiency.

The invention relates to a chromatographic device, a chromatographic system and a chromatographic column replacement method, the chromatographic device comprises a chromatographic box and a quick-insertion quick-change mechanism, the chromatographic box comprises a box body and a chromatographic column arranged in the box body, the two ends of the chromatographic column are connected with an adapter assembly penetrating through the side wall of the box body, the adapter assembly is provided with a first channel communicated with the chromatographic column, and the first channel is communicated with the chromatographic column. The quick-inserting and quick-changing mechanism comprises a support and a sample feeding and discharging unit arranged on the support, the support is provided with a positioning assembly used for positioning the chromatographic box, the sample feeding and discharging unit comprises two movable sample needles, the two sample needles are used for being connected with the two switching assemblies respectively, and when the chromatographic box is positioned on the support, the two switching assemblies are connected with the two movable sample needles. The sample needle can move between a first position and a second position; when the sample needle moves to the first position, the sample needle is inserted into the first channel of the switching assembly, so that the sample needle is communicated with the first channel; and when the sample needle moves to the second position, the sample needle is separated from the switching assembly. According to the invention, the chromatographic column can be rapidly replaced from the chromatographic device in a mode of replacing the chromatographic box.

The invention is suitable for the technical field of communication fusion, and particularly relates to a wireless and wired fusion data center interconnection structure, device and method. The cellular network clusters are connected through optical fiber links, each cellular network cluster is composed of a plurality of cellular units, and the cellular units in the same cellular network cluster are interconnected in a wireless link mode. By building a wireless free space optical communication link, direct interconnection between cellular units in the same cellular network cluster is realized, the routing hop count is reduced, the communication time delay is reduced, the flexibility and efficiency of network interconnection are greatly improved, and by combining the optical fiber, the communication efficiency is improved. The high stability and the anti-electromagnetic interference capability of the optical fiber can be fully utilized, a flexible redundant path can be provided for a wireless free space optical communication link, and the continuity and the reliability of communication can still be kept when a wired link is blocked.

The invention discloses a drilling liner hanger system and a related method. The system comprises a drilling liner hanger and a setting tool, in the drilling liner hanger, a packer is connected between a mandrel and a tie-back barrel, a flowing channel is formed in the tie-back barrel and the mandrel, a lower slip is arranged on the mandrel, a taper sleeve is fixed to the mandrel, a setting piston is connected with the mandrel in a sealed mode, and a hydraulic cavity is formed between the mandrel and the setting piston. The setting tool is arranged in the flowing channel; in the setting tool, a floating valve mechanism is in sealing fit with a body and a tie-back barrel, and a first space is formed among the floating valve mechanism, the tie-back barrel, a mandrel and the body; cleaning liquid is contained in the first space; the packer executing mechanism and the releasing mechanism are arranged in the first space; a second space is formed between the thrust mechanism and the body; the packing mechanism is in sealing fit with the body and the mandrel. The second space is communicated with the hydraulic cavity; the pressure balance mechanism communicates with the first space and the second space and is used for transporting the cleaning liquid in the first space to the second space and the hydraulic cavity.

The water dispenser comprises a first waterway plate, a second waterway plate, a cold tank and a hot tank, the first waterway plate is provided with a water receiving pool, a water inlet waterway and a water outlet waterway, the second waterway plate is provided with a water drainage waterway, and the cold tank is suitable for being communicated with the water inlet waterway to receive water from the water receiving pool. The cold tank is suitable for being communicated with the water inlet waterway so as to receive water from the water receiving pool, is suitable for being communicated with the water outlet waterway so as to output refrigerated water and is also suitable for being communicated with the water drainage waterway so as to discharge water in the cold tank, and the hot tank is suitable for being communicated with the water inlet waterway so as to receive water from the water receiving pool, is suitable for being communicated with the water outlet waterway so as to output heated water and is also suitable for being communicated with the water drainage waterway so as to discharge water in the hot tank. The first waterway plate and the second waterway plate can serve as core parts to be connected with a cold tank and a hot tank, so that communication of waterways is achieved, the corresponding waterways are arranged on the first waterway plate and the second waterway plate, silicone tubes in a traditional water dispenser are replaced, use of the silicone tubes is reduced, the problem of water leakage is effectively avoided, module and assembly are facilitated, and the water dispenser is convenient to use. The production efficiency is improved.

The invention relates to a fluid trajectory tracking method based on a physical heuristic neural network, and the method specifically comprises the steps: building a first full-connection network, and obtaining a particle trajectory through the prediction of the first full-connection network; a second full-connection network is established, and the flow field speed and the flow field pressure are obtained through prediction of the second full-connection network based on the particle trajectory; connecting the first full-connection network and the second full-connection network in series, and training to obtain a prediction network; and performing fluid trajectory tracking through the prediction network. According to the method, the accuracy and efficiency of prediction are improved while the physical consistency is ensured.

The utility model provides a burr removing device which comprises a base and a portal frame fixedly installed at the top of the base, two clamping mechanisms used for clamping plastic balls and driving the plastic balls to rotate are arranged at the top of the base, and a polishing mechanism used for polishing and deburring the rotating plastic balls is arranged below the top of the portal frame. According to the device, the arc-shaped supporting plate is arranged, the brush is arranged on the inner side of the arc-shaped supporting plate, and the plastic ball is clamped by the clamping mechanism and rotates at a high speed, so that reliable burr removal can be carried out on the curved surface of the plastic ball; the arc-shaped supporting plate and the hard arc-shaped block are connected through the rubber connecting rod, so that the radian of the arc-shaped supporting plate can be slightly changed when the arc-shaped supporting plate is attached to the surface of the plastic ball, the arc-shaped supporting plate can be reliably attached to the surface of the plastic ball, the polishing effect is guaranteed, and in addition, the arc-shaped supporting plate can be self-adaptive to size polishing within a certain diameter range.

The present invention relates to the technical field of polishing machines, specifically to a hydraulic oil cylinder outer surface polishing mechanism, including a polishing mechanism body, wherein the polishing mechanism body includes a machine base, a polishing machine housing fixedly mounted on the upper surface of the machine base, and a four-jaw chuck. In the present invention, the heat-conducting ring has a large contact area with the material of the grinding wheel, and absorbs the heat generated by the grinding wheel and transfers it to the heat-conducting rod. In this process, the high-speed rotating grinding wheel will drive the shielding plate to move through the wind deflector plate, so that the shielding plate moves to contact the vent with the external gas, guide the gas to become an airflow flowing to the vent, so that more gas flows through the vent, and when the gas passes through the vent, it will contact the exposed heat-conducting rod and heat sink to exchange heat, and the gas after complete heat exchange flows out of the vent, so that the temperature of the heat-conducting rod part in the vent drops, and at this time, the heat-conducting rod will transfer the heat from other positions to the vent, and then the heat is taken away by the air, thereby completing the heat dissipation.

The invention provides a resident data processing method and device, and the method comprises the steps: obtaining resident data from a plurality of domains, and injecting the resident data into a summary sheet; performing data cleaning on the resident data in the summary sheet; performing matching calculation on the resident data in the summary sheet, and dividing the resident data in the summary sheet into a plurality of groups; performing data integration on the resident data of each group to generate corresponding resident health archives and resident identifiers; wherein different groups correspond to different resident identifiers. By building a unique resident identifier, the medical service efficiency can be improved in the regional medical field, a medical institution can quickly identify patient information through the unique identifier, and resource waste caused by repeated information input is reduced; accurate and coherent medical services can be obtained in the medical treatment process of residents; meanwhile, through the unique identification, resident information interconnection and intercommunication between medical institutions can be promoted, and sharing and integration of medical data are promoted.

The invention discloses a kinetic energy conversion type Ampere force coupler, and relates to the technical field of kinetic energy conversion equipment, the kinetic energy conversion type Ampere force coupler comprises an input shaft, the input shaft is connected with a planetary gear speed increaser, the output end of the planetary gear speed increaser is connected with an intermediate shaft, an outer rotor assembly is mounted on the intermediate shaft, and a plurality of permanent magnets are mounted in the outer rotor assembly in a surrounding manner; an inner rotor assembly is coupled to the inner side of the outer rotor assembly, a plurality of induction coils are installed on the inner rotor assembly in a surrounding mode, the inner rotor assembly is connected with an output shaft, and the output shaft is connected with a load; a power receiving slip ring is further mounted on the output shaft, and a carbon brush is mounted on the outer side of the power receiving slip ring and electrically connected with power storage equipment; power and current can be output outwards at the same time, and waste caused by the fact that the power of an engine cannot be fully utilized due to the fact that a load cannot run in a full-load mode under complex working conditions is avoided.

The invention relates to the technical field of energy storage liquid cooling, in particular to an energy storage cold plate type liquid cooling unit control system which comprises a main controller, a communication module, a switching value acquisition module, a switching value output module, an analog quantity acquisition module and an analog quantity output module. The switching value acquisition module is used for connecting and acquiring a high-voltage switching signal, a low-voltage switching signal, a temperature switching signal, a fan fault feedback signal and the like of the liquid cooling unit and feeding back the signals to the main controller; the switching value output module is used for connecting and transmitting a control signal to a compressor, a water pump and a fan and outputting a fault signal and the like; the analog quantity acquisition module is used for connecting a temperature sensor and a pressure sensor and feeding back acquired data to the main controller; and the analog quantity output module is connected with a water pump speed regulator and a fan speed regulator. According to the invention, multi-path sensor data acquisition can be supported through expansion, and the requirements of convenient connection and maintenance of various different types of sensors and different communication devices of the liquid cooling system are met.

The invention relates to the technical field of circuit boards, in particular to a preparation method of a high-density interconnection (HDI) circuit board, which comprises the following steps of: testing the prepared circuit board, determining abnormal lines according to the connection condition of each contact, and preliminarily analyzing whether the preparation process of the circuit board is qualified or not according to the number of the abnormal lines. Classification is performed according to the communication condition of each abnormal line in the circuit board and the through hole, and then whether the preparation process of the circuit board is qualified or not is analyzed secondarily according to the number ratio of each type of abnormal lines, so that the control precision of the preparation process of the circuit board is improved. And when the preparation process is judged to be unqualified, the reason for the unqualified preparation process of the circuit board is analyzed according to the number of the abnormal lines, and then the parameters in the preparation process of the next batch of circuit boards are adjusted according to the analysis result, so that the quality of the circuit board is improved, and the preparation efficiency of the circuit board is improved while the quality of the prepared circuit board is ensured.

The embodiment of the invention provides a dynamic memory allocation method and device for a programmable logic controller and electronic equipment. According to the method, the connection information of the equipment and the port of the programmable logic controller is acquired, the connection information is sent to the cloud platform, and the memory size is allocated to the port according to the memory allocation configuration file sent by the cloud platform based on the connection information, so that the memory space of the programmable logic controller is allocated according to the requirement; and the memory space utilization rate is improved.

The invention discloses an anti-deviation offshore photovoltaic power generation device capable of controlling diving lifting, which comprises a photovoltaic platform, a mooring system arranged at the bottom of the photovoltaic platform, a liquid level sensor and a photovoltaic panel group, and is characterized in that the mooring system comprises four fixed anchor piles, and the four fixed anchor piles are respectively located at four corners of the bottom of the photovoltaic platform; the photovoltaic panel group is arranged at the middle position of the top of the photovoltaic platform, and a protection mechanism is arranged on the outer ring of the photovoltaic panel group. When the device is used, through the arrangement of a hollow cylinder, an air pump, an air inlet pipe, a ventilation pipe, an air bag cylinder, an exhaust pipe and an electromagnetic control valve, external air can be pumped into the ventilation pipe through the air inlet pipe by starting the air pump to work; and the air bag barrels are inflated and expanded, so that the impact force of sea waves rushing to the photovoltaic panel group can be counteracted, the purpose of protecting the photovoltaic panel group can be achieved, and the service life of the photovoltaic panel group can be prolonged.

The electronic expansion valve comprises a valve seat assembly, a screw assembly and a valve needle assembly, a valve port is formed in the valve seat assembly, the valve seat assembly is connected and communicated with a first connecting pipe, and the first connecting pipe is communicated with the valve port; the screw assembly comprises a threaded sleeve, and the threaded sleeve is fixedly installed on the valve seat assembly. The valve needle assembly can be driven by the screw assembly to be used for controlling opening / closing of the valve port. Wherein the threaded sleeve is provided with a first part, and the first part is in guide fit with the valve needle assembly; in the axis direction of the threaded sleeve, the end face of the end, facing the valve port, of the first part is not lower than the inner circumferential wall of the first connecting pipe. In this way, it can be guaranteed that when refrigerants enter and exit from the first connecting pipe, the refrigerants are not prone to forming vortexes between the first connecting pipe and the first portion on the threaded sleeve, so that the communication capacity of the electronic expansion valve in the working process is improved, and meanwhile the situation that the threaded sleeve is burnt by heat generated when a client side welds a follow-up pipeline can be avoided.

The invention relates to the technical field of intracranial probes, and discloses an intracranial probe with a built-in miniature pressure and temperature sensor and a packaging technology.The intracranial probe comprises a metal sleeve, a semi-circular ball head, a plastic sleeve, a carrier plate, a pressure sensor chip, a sealing tape, a breather pipe and a temperature sensor chip, one end of the metal sleeve is fixedly connected with the semi-circular ball head, and the other end of the metal sleeve is fixedly connected with the plastic sleeve; the other end of the metal sleeve is fixedly connected with the plastic sleeve; a notch, a first through groove and a second through groove are sequentially formed in the carrier plate in the X direction, the notch is communicated with the first through groove, and protruding blocks are symmetrically arranged at the end, close to the second through groove, of the carrier plate in the Y direction; according to the intracranial probe with the built-in miniature pressure and temperature sensor and the packaging technology, the problems that the placing position of a pressure sensor chip of an existing intracranial probe is affected by a wire and deviates, and stress measurement data generated by rebounding of the wire and the like are inaccurate are solved.

The invention discloses cleaning equipment for waste plastic recycling, and relates to the technical field of waste plastic cleaning, the cleaning equipment comprises a cleaning box, a feeding inclined guide plate and a discharging inclined guide plate, a filter screen plate is fixedly arranged in the cleaning box, and a belt type conveying assembly used for conveying plastic falling on the filter screen plate to the discharging inclined guide plate is arranged above the filter screen plate; the plastic washing device further comprises a plurality of elastic conveying nets, a lifting washing mechanism and a rotary washing nozzle, the elastic conveying nets are distributed on the belt type conveying assembly at equal intervals, and the elastic conveying nets are used for supporting plastic. According to the plastic cleaning device, broken plastic falling into the cleaning box is conveyed through the conveying belt, in the conveying process, a lifting supporting plate drives a curved-surface spray head to continuously ascend and descend to push an elastic conveying net on the conveying belt, so that the plastic on the elastic conveying net is conveniently turned over, and meanwhile, the curved-surface spray head extrudes the elastic conveying net in a close range; the turned plastic can be sufficiently flushed in a short distance, and the flushing effect is improved.

The invention relates to a monatomic nanofiber catalytic membrane with gradient distribution of catalysts as well as a preparation method and application of the monatomic nanofiber catalytic membrane, and belongs to the technical field of membrane separation-catalytic coupling and sewage treatment. The technical problems that in the prior art, a catalytic membrane cannot effectively treat high-salinity wastewater, and the utilization rate of a catalyst and active oxygen is low are solved. The monatomic nanofiber catalytic membrane comprises a nanofiber base membrane and a metal-C3N4 monatomic catalyst which is distributed on the surface of the nanofiber base membrane in a gradient manner. The preparation method comprises the following steps: firstly, synthesizing a metal-C3N4 monatomic catalyst; then preparing spinning solutions of metal-C3N4 monatomic catalysts with different concentrations; finally, gradient spinning, hole forming and drying are conducted, the monatomic nanofiber catalytic membrane is obtained, stable loading of a monatomic catalyst in the catalytic membrane is achieved, gradient distribution of the singlet oxygen concentration of a hole channel is achieved, and the catalytic degradation efficiency of the nanofiber catalytic membrane on organic pollutant molecules is greatly improved.

This invention provides a three-chamber drainage bottle anti-cross-flow structure and a closed thoracic drainage device incorporating it. The three-chamber drainage bottle anti-cross-flow structure includes a sealed shell, a suction tube, a first control switch, and a second control switch. In use, the sealed shell is installed above the drainage bottle, the second control switch is connected to the suction port, and the suction tube is sealed inside the inlet, with one end connected to the collection port and the other end flush with the 0 level line. Initially, the first control switch is closed and the second control switch is open. In case of cross-flow, the first control switch is opened and the second control switch is closed. Under negative pressure, the suction tube draws liquid into the working chamber. After suction is complete, the first control switch is closed and the second control switch is opened, allowing the liquid in the working chamber to flow into the pressure regulating bottle. This invention can drain excess liquid from the water-sealed bottle, thereby reducing the frequency of drainage bottle replacement and lowering patient medical costs. This device can be directly used with existing drainage bottles and is suitable for widespread application.

The invention discloses a data processing method and system for credential equipment, and belongs to the field of data processing in the information technology application innovation industry, and the method comprises the steps: a multi-source data fusion and intelligent analysis module is used for fusing the operation state, business and security log data of the credential equipment, and carrying out the fault prediction and performance bottleneck positioning through a deep learning model; the data security processing module adopts homomorphic encryption and proxy re-encryption technologies to ensure that data is processed and securely shared in an encryption state; the self-adaptive dynamic load balancing module dynamically allocates tasks and resources by monitoring and predicting equipment load in real time; the cross-platform data interaction and co-processing module constructs a unified framework to realize data adaptation and task collaboration between different operating systems and hardware architecture equipment; and the block chain and federated learning collaboration module realizes security joint modeling and privacy protection of data based on the block chain and federated learning. According to the method, the operation efficiency, the safety, the cooperation capability and the resource utilization rate of the credential equipment group are comprehensively improved.

The invention provides an over-hot-point floating Ethernet switch, and relates to the field of switches, the over-hot-point floating Ethernet switch comprises a machine body, an interface piece is arranged in the machine body, fixing edges are fixed at two ends of the interface piece, a cooling assembly is arranged between the two fixing edges, and the interface piece is located in the cooling assembly. The fixed edges are arranged at the two ends of the connector piece, the temperature of the single connector piece is sensed through the heat conduction piece, and when the temperature of the connector piece is too high during working, the movable ring structure rotates, so that the air inlet is aligned with the air inlet flow channel, the air outlet is aligned with the air outlet flow channel, and an inner cavity of the fixed ring structure outside the connector piece communicates with the same-row shared airflow conveying channel; the heating interface piece is cooled through the circulating air flow; according to the invention, through heat transfer after the single interface piece is heated, communication between the single interface and the overall heat dissipation air flow channel is realized, so that the heat is fed back to the single interface piece, and autonomous heat dissipation of the single interface piece in the whole is realized.

This invention relates to an air electrode material and its preparation method. The preparation method includes: using metal salts of Ce, Pr, La, Ba, and Sr, metal salts of Co, and a fluorine source as raw materials, and preparing a fluorine-containing perovskite precursor according to a stoichiometric ratio; pretreating the precursor and then sintering it to obtain a composite powder; the composite powder includes a fluorine-containing perovskite main phase and a fluorine-containing CeO2 nanophase; pulverizing and sieving the composite powder to obtain air electrode powder; the fluorine-containing perovskite main phase is an A-site high-entropy perovskite oxide; the fluorine-containing CeO2 nanophase is precipitated through the self-assembly of some Ce elements during sintering; the fluorine-containing CeO2 nanophase is dispersed inside the main phase grains or at grain boundaries, and forms a strongly coupled heterogeneous interface with the main phase. This invention solves the technical problems of poor surface exchange activity, bulk diffusion transport, and long-term stability of existing air electrodes.