138results about How to "Break through the bottleneck" patented technology

The present invention discloses one kind of terminated non-ionic surfactant and its preparation process and application. The surfactant is allyl terminated polyether with molecular weight controllable in 700-9500 Da, narrow molecular weight distribution and high reaction activity. It has methylol terminating rate up to 95 % and double bond terminating rate up to 93 %, and possesses structure as shown.

The invention discloses a system and a method for supporting SDN multi-stage flow table parallel searching of a multi-core processor, and relates to the technical field of networks. The method comprises the following steps: adding a default table entry to the tail end of each multi-stage flow table; when a previous data stream enters a multi-stage flow table lookup, automatically establishing a data stream keyword-based quick table, recording the data stream and a table entry result matched with each stage of flow table, and directly associating the data stream with the table entries of the multi-stage flow tables in SDN equipment through the quick table; and directly obtaining forwarding rule information in the multi-stage flow tables from the quick table by a late data stream, directly finding out a to-be-matched table entry and an executed action from the multi-stage flow tables through the quick table, and converting matching for multiple times carried out in the SDN multi-stage flow tables into single matching in the quick table. According to the system and the method disclosed by the invention, the search efficiency can be improved; and the execution efficiency of the multi-core processor in the SDN multi-stage flow tables is improved.

The invention discloses a constructing method of a nerval net generalized inversing bearingless permanent magnet synchronous motor decoupling controlling device, which takes two Clark inverse transformations, two electric current tracing type inverters, a bearingless permanent magnet and a load model as a whole to form a composite controlled object, a nerval net generalized inverse of the composite controlled object is formed through adopting static nerval net added with a plurality of linear links, then the nerval net generalized inverse is reversely arranged before the composite controlled object to form a generalized pseudolinear system, the generalized pseudolinear system is decoupled to three single input and output subsystems through linearization, finally a nerval net generalized inverse, the two Clark inverse transformations and the two electric current tracing type inverters are all formed to a nerval net generalized inversing bearingless permanent magnet synchronous motor controlling device, the controlling device can not only realize dynamic decoupling between a radial position system of a motor and torque moment system and between radial forces, but also be taken as a nonlinear open-cycle controlling device to use directly, and stable suspension and operation of a rotor of a motor can be ensured.

The invention relates to an amino acid sequence of a recombinant human papillomavirus L1 capsid protein, a nucleotide sequence which encodes the amino acid sequence and a recombinant vector and an expression host which contain the nucleotide sequence. The invention further relates to an application of a HPV L1 protein which is composed of the amino acid sequence in the preparation of vaccines, drug combination and diagnostic antigens or antibodies. The invention allows the recombinant HPV L1 capsid protein which is expressed in a prokaryotic system to be dissolvable in water by the modification of the HPV L1 wild-type sequence, and an L1 pentamer which has the same immunogenicity and antigenicity with the VLP of HPV L1 is obtained by expression. The invention allows the industrial production of the HPV L1 capsid protein by utilizing the prokaryotic expression system to become a reality, compared with the currently used eukaryotic expression system, the invention has the advantages of more stable quality of the products, higher yield, low cost and convenient quality control, which has great economic benefits and social effects.

The invention discloses a distributed type logistics system and method based on a base station. The method comprises the steps that a control center is positioned on the basis of a delivery point, thereceiving point closest to the base station and the platform take-off unmanned aerial vehicle is commanded to collect the goods; the unmanned aerial vehicle uses the satellite and the base station navigation for goods taking and delivering; the unmanned aerial vehicle relay transportation is carried out when the delivery voyage exceeds the flight range of the unmanned aerial vehicle; the unmannedaerial vehicle cross-area cargo transportation is carried out when the unmanned aerial vehicle is in cross-piece area delivery; after the unmanned aerial vehicle arrives at the receiving point, the control center checks the user information for unloading. Meanwhile, the invention further provides a distributed logistics method based on the base station, the traditional cargo transportation mode can be improved, and the practicability and the efficiency of the logistics of the unmanned aerial vehicle can be improved at the same time.

The invention relates to an ageing sweet-white wine and a brewing process of the ageing sweet-white wine, belonging to the technical field of brewing of wines. The physicochemical indexes of the ageing sweet-white wine disclosed by the invention are as follows: the content of reducing sugar is 80-90 g / L; the total acidity is 7.0-8.5 g / L; the alcoholic strength is 10.0-12.0%vol; the content of free sulphur dioxide is 30-45 mg / L; the total content of sulphur dioxide is less than or equal to 250 mg / L; the content of volatile acid is less than or equal to 1.0 g / L. The brewing process of the ageing sweet-white wine disclosed by the invention comprises the following steps of: (1) finely selecting grapes and removing stems; (2) crushing; (3) technically dividing; (4) centrifuging and clarifying at low temperature; (5) fining at low temperature, and filtering; (6) ageing by using an oak barrel; (7) blending and mixing; (8) fining for the second time, and filtering; (9) coldly processing stability; (10) sterilizing and filtering; (11) filling finished goods; (12) storing in a bottle. The ageing sweet-white wine disclosed by the invention is full-bodied in fragrance, graceful, lasting and plump in mouth feel; the brewing process of the ageing sweet-white wine disclosed by the invention is simple, scientific and convenient to operate; the production cost can be effectively reduced; the scale production of high-end sweet-white wines is realized.

The invention discloses an iron-tailing anti-blockage water-permeable concrete pavement and a preparation method therefor. The iron-tailing anti-blockage water-permeable concrete pavement is an ecological environment-friendly water-permeable material. The anti-blockage water-permeable concrete pavement has a three-layer-hole (a base layer, a sub surface layer and a surface layer) gradient-layer complex structure. Ingredients of pervious concrete of all layers and a proportioning ratio of the ingredients are disclosed; and the water-permeable surface layer can be used for filtering porous structures of impurities in rainfall, and the pervious concrete which is used for effectively preventing fine grains from blocking the pavement is formed. According to the iron-tailing anti-blockage water-permeable concrete pavement and the preparation method therefor, the pervious concrete adopts a rejected material, i.e., iron tailing as a skeletal material, is a novel building material and is beneficial to the relief of environmental pollution and the bringing of huge social, economic and ecological benefits.

The invention discloses a bee attractant and a method for field seed production and pollination of soybean hybrids. The method comprises the following steps of: selecting a field which is suitable for the growth of soybeans, duly sowing the soybean hybrids, and intercropping male parents and female parents across ridges; selecting a required amount of healthy pollination swarm within 5 to 7 days before pollination, and transporting into the field of the soybeans at the early flowering stage of the soybeans; feeding attractant syrup within 1 hour before the bee attractant is sprayed everyday or every other day in the seed production field of the soybean hybrids which just blossom; spraying the bee attractant on leaves of hybrid soybean plants of the male parents and the female parents in 1 to 5 ridges of field across 1 to 5 ridges of field every 1 to 3 days so as to ensure that bees are attracted into the field and fall down to the leaves of the hybrid soybean plants to eat the syrup; spraying the attractant on two sides of stalks of the hybrid soybean plants to attract the bees to fall down to hybrid soybeans to collect so as to pollinate the hybrid soybeans; and stopping spraying the bee attractant in rainy days, and restoring the spray when the weather gets better so as to maintain the attractant which can meet the requirements in the field. The attractant is obtained by mixing a honeycomb liquid, a flower aroma imitation liquid and syrup in a proportion and diluting by using quantitative cold boiled water.

The invention relates to a distributed file system which comprises a big file storage server, a big file metadata management server and a cache server, wherein the big file storage server is used for storing split big file data blocks, and big files are files of which the size is larger than the preset size; the big file metadata management server is used for storing metadata of the big files, storing mapping information of the big file data blocks on the big file storage server, managing the namespace of the big files and processing the requesting information of a user; the cache server is used for storing small files, metadata of the small files and caching part of frequently visited big files, and the small files are the files of which the size is smaller than or equal to the preset size. According to the distributed file system, the big files and the small files are stored separately, the big files are stored on the big file storage server in a block mode, the small files are stored on the cache server and the reading and writing efficiency of the big files and the small files is improved effectively.

The invention discloses a honey bee attractant and a method for seed production and pollination of a soybean hybrid seed in a field. The honey bee attractant is prepared from cellular liquid, imitation flower liquid, syrup and water. The method comprises the steps of: selecting the field suitable for growth of soybean, sowing the soybean hybrid seed in good time, interplanting a male parent and a female parent at an interval of a ridge, selecting required quantity of healthy pollination swarm before pollination, transporting the healthy pollination swarm in the soybean field at an early flowering stage of the soybean; feeding attractant syrup one hour before spraying the honey bee attractant in each day or at an interval of a day; forming 1-5 ridges for every1-3 days, spraying the honey bee attractant on hybrid soybean plant leaf of the male parent and the female parent in the 1-5 ridges; inducing a large quantity of bees to gradually fall on the hybrid soybean plant leaf to eat the attractant syrup; then spraying the honey bee attractant on the two sides of a hybrid soybean strain stem, inducing the bees to climb on the soybean strain stem and continue to climb on the soybean to collect, thereby pollinating the hybrid soybean; stopping spraying the honey bee attractant in a cloudy or rainy day, and spraying the honey bee attractant when the weather gets nicer, so as to keep enough attractant required for inducing the bees in the field.

The invention discloses a method for improving the data resolution ratio of a silica-based optical matrix processor and the processor. The method includes the steps that laser signals are output by a laser array and received and modulated by an optical modulator array to an N*1 vector A; a modulator matrix is formed by a micro-ring optical modulator matrix, wherein modulation depths form an M*N matrix B; optical modulation is carried out respectively by dividing the vector A into k subvectors and dividing the matrix B into k submatrixes so as to obtain the product of the k subvectors and the k submatrixes; the obtained product of the subvectors and the k submatrixes is detected by a detector linear array formed by k detectors, and then the product of the vector A and the matrix B is obtained; the element bit wide of each subvector and each submatrix is m, m bit vectors and m bit matrixes are formed after bitwise separation, and the product of the subvectors and the submatrixes is obtained by multiplying the bit vectors by the bit matrixes respectively.

The invention provides a speech recognition optimization system aiming at the using preference of regional languages, which comprises a lexicon establishment and classification module, a grammar model initialization module, a lexical database, a grammar weight calculation and grammar model generation module, a lexicon application recording module and a telephone speech recognition system. The lexicon establishment and classification module, the grammar model initialization module, the lexical database, the grammar weight calculation and grammar model generation module and the lexicon application recording module are arranged in a computer; the lexicon establishment and classification module, the grammar model initialization module, the telephone speech recognition system, the lexicon application recording module, the lexical database, the grammar weight calculation and grammar model generation module are connected in sequence and the telephone speech recognition system is connected with a speech input and output device through PSTN or the Internet. The system of the invention can effectively break through the bottle neck of algorithm optimization and is more suitable for the requirements of the application of industry.

The invention provides a method for extracting rabies virus, and is to solve the defects that great discrepancy of quality indices of different batches occurs; removal of remaining DNA becomes difficult; the protein content of the remaining host is too high; and great side effects appear clinically when the single method of molecular sieve gel chromatography is adopted for extracting rabies virus vaccine. The essential of the invention is that a hollow fiber ultrafiltration column or ultrafiltration membrane with the molecular weight cut-off of 750KD or 500KD is used to condense and partially purify harvested liquid of virus; anion exchange chromatography or molecular sieve gel chromatography is adopted to separate and purify samples; molecular sieve gel chromatography or anion exchange chromatography is adopted to separate and purify samples got in step (2). The method for extracting rabies virus has the characteristics of great productive capacity, high product quality, excellent batch stability, being remarkably effective in removal of remaining DNA and HCP, and reducing the potential safety hazard of vaccine.

The invention discloses a multi-scale soil moisture content synergistic observation device. The device is composed of a wireless observation network WSN composed of a plurality of TDR soil moisture sensors, a region soil moisture measurement system CRS1000b, a satellite platform, a notebook computer hardware device platform and multi-scale soil moisture content synergistic observation control terminal software; the soil moisture content synergistic observation is launched under three-scale soil moisture content synergistic observation scheme of point, region and satellite pixel element; the existing advanced device and advantage technology method are integrated, the multi-scale soil moisture content synergistic observation is realized through the synergistic observation scheme design, the bottle neck of soil moisture content remote sensing retrieval result verification is broken through, the application and research field are developed; the popularization application can be served for most strict industries such as water resource management, agricultural water-saving and drought observation, the irrigation benefit and water resource utilization rate are improved.

The invention provides a method for preventing touch detection and LCD scan from mutual interference. The method is based on an LCD touch screen equipped with a capacitive touch sensor, and comprises the steps that the whole LCD touch screen is divided into at least two areas firstly; then a touch detection timing sequence and an LCD scan timing sequence of the LCD touch screen are set; and a touch detection process and an LCD scan process meet the requirement that either of the touch detection process and the LCD scan process is performed in the same area in the same time interval, so that the touch detection process and the LCD scan process maintain mutually independent operation states in both the time domain and the spatial domain. According to the method, the touch detection process and the LCD scan process are isolated in the time domain and the spatial domain, so that the two processes are prevented from mutual influence and interference.

The invention provides a preparation method of p-type and n-type conductive lithium niobate nanowires. The preparation method comprises the following steps: step 1, uniformly heating a multi-domain lithium niobate crystal for a certain time by using thermal immobilization technology, and naturally cooling to room temperature, so that protons in the crystal are fixed in a domain wall region; 2, carrying out primary polarization on the prepared lithium niobate crystal by using electric polarization technology; and 3, carrying out secondary polarization on the prepared lithium niobate crystal byutilizing electric polarization technology, so that the conductivity type of nanowires prepared in the step 2 can be changed, and the conversion of p-type and n-type conductive carrier types can be realized through one-time polarization inversion. According to the method, the regulation and control technology of transporting carriers in the lithium niobate crystal at nanoscale is achieved, and theregulation and control problem of the electrical properties of lithium niobate at nanoscale is solved.

The invention relates to wood-base composite thickening plates and a manufacture method thereof. The wood-base composite thickening plates are composed of three organic high polymer materials of fast-growing wood accounting for 65-70% of the total weight of the plates, 18-20% of phenolic resin and 12-15% of bentonite. The thickness of the plates ranges from 40mm to 200mm, and the size of the breadth of the plates can be set according to requirements. The manufacture method achieves replacement of a method of drying a veneer and dipping glue with a method of finishing vacuum dehydration and glue dipping by one step, manual paving is replaced with mechanical paving to overcome unevenness of blank paving, a method of preheating to increase blank temperature to quicken heat conducting during plate lamination is used, limiting bottleneck of producing thickened plates is broken through, and continuous production of the thickened plates is achieved. The high-quality wood-base composite material for improving the conditions that natural wood resource is shortened for wooden product machining industries is provided, a production method for saving energy and reducing cost is provided for application of fast-growing wood, and the wood-base composite thickening plates are favorable for protecting natural forest resource and environment simultaneously.

A disclosed nylon composite enhanced material utilizes a gradient grading filling principle, and comprises the following compositions: nylon 11, basalt fiber possessing the diameter of 13 mum and accounting for 20-40% by weight of nylon 11, glass fiber possessing the diameter of 6 mu m and accounting for 20-40% by weight of basalt fiber, glass fiber possessing the diameter of 2 mu m and accounting for 20-40% by weight of the glass fiber with the diameter of 6 mu m, a sub-nanometer material possessing the particle size of 400-600 nm and accounting for 20-40% by weight of the glass fiber with the diameter of 2 mu m, and a nanometer material accounting for 20-40% by weight of the sub-nanometer material. The nylon composite enhanced material is novel in combination and scientific in material selection and grading, the mesoscopic mechanics structure is gradually filled, a normal-temperature metal substitute structural material is developed and is sustainable, regenerable, free of pollution, low in energy consumption, highly resistant to corrosion and excellent in performances, and is capable of replacing a conventional normal-temperature steel material or metal.

The invention discloses a numerical control machine tool fault monitoring and diagnosis system based on data mining. The system comprises a data management module, a data interpretation module, an intelligent fault diagnosis module, a data mining module and a man-machine interaction module. The data management module supports real-time importing of current data and batch importing and exporting ofhistorical data; the data interpretation module performs preprocessing, feature extraction and symptom extraction on the data; the intelligent fault diagnosis module is used for reasoning system-level faults by synthesizing the obtained symptoms and diagnosis knowledge; the data mining module autonomously mines an unknown fault mode alarm criterion and a diagnosis knowledge rule, and updates an alarm criterion library and a diagnosis knowledge base; the man-machine interaction module realizes setting control of fault monitoring and diagnosis processes and real-time display of results; the system has the advantages that machine tool operation is fully utilized to naturally generate data, deep modeling of a machine tool with a complex mechanism is not needed, the knowledge bottleneck of a traditional expert system type diagnosis system is broken through, the diagnosis process is automatic, and diagnosis is rapid and accurate.

The invention discloses a multi-functional reflective film of on-board exterior mirror and the preparation method. The reflective film comprises glass substrates piled in sequence, the first high refractive layer, the first low refractive layer, the second high refractive layer, the second low refractive layer, metal material layer, the third low refractive layer and conducting layer. The first high refractive layer and second high refractive layer are made from Ta2O5, TiO2 and Nb2O5, the first low refractive layer, the second low refractive layer and the third low refractive layer are made from MgF2, SiOxNy and SiO2, the metal material is made from Al and Ag, and the conducting layer is made from ITO and graphene. Inorganic material and conductive material are mixed reasonably. Vacuum magnetron sputtering deposition is used to produce adjustable reflective film used for on-board exterior mirror. Based on this, the film is connected with the heating system through the conductive coating. The mirror will be clean even in the Frost and snow weather, providing safety guarantee during driving.

The invention discloses a matrix metal oxide varistor (MOV) circuit board structure and a manufacturing method thereof. The structure comprises a printed circuit board (PCB), a copper conductive busbar, and MOV, thermal fuse body and sampling resistor-combined plastic modules, wherein the copper conductive busbar is attached to a copper foil of the PCB; the copper conductive busbar is integrated with an electrode used for connecting a dual-port wiring terminal into a whole and is provided with an element pin welding hole which is synchronous with the PCB; and the MOV, thermal fuse body and sampling resistor-combined plastic module is directly welded on the conductive busbar. In the circuit board structure, the integrally punched copper conductive busbar is adopted and attached to the copper foil of the PCB, the sectional area of a lead of the circuit board is increased, and the contact resistance is reduced. Therefore, the capacity of the circuit board of bearing heavy current is improved, and the equalized current between the matrix distribution MOV, thermal fuse body and sampling resistor-combined plastic modules is realized.

The invention discloses an RIS-based intelligent emergency communication system, which comprises an unmanned aerial vehicle (UAV) and a base station (BS), and is characterized in that a reconfigurable intelligent surface RIS module is connected between the UAV and the base station (BS); a plurality of passive reflection elements are embedded in the plane of the reconfigurable intelligent surface RIS module and are used for dynamically adjusting the phase and the amplitude of a reflection signal; the reconfigurable intelligent surface RIS module is arranged in a building, a vehicle and an infrastructure; and the unmanned aerial vehicle (UAV) and the base station (BS) are transmitted by adopting an NLoS transmission model or an LoS transmission model. Through seamless connection of RIS, NOMA and emergency communication, intelligence and maximization of a communication coverage range can be realized, so that people in a disaster area can obtain higher-quality services, and channel gain and fairness of emergency users are further improved.

The invention discloses a microwave pulse signal generating device based on a light-operated nonlinear annular mirror. The device comprises a mode locking pulse laser, a first intensity modulator, a first code pattern generator, a first optical coupler, a first polarization controller, a second optical coupler, a second polarization controller, a variable optical attenuator, a light amplifier, a narrow linewidth laser, a semiconductor optical amplifier, a third polarization controller, a polarization maintaining optical fiber, a fourth polarization controller, an optical band pass filter, a dispersion element, a photoelectric detector, a sampling oscilloscope, a signal source analyzer, a second code pattern generator and a second intensity modulator. The phase and the duty ratio of microwave pulse signals produced by the microwave pulse signal generating device based on the light-operated nonlinear annular mirror can be tuned, the disadvantages of a traditional electronics method in the aspects of the bandwidth, the weight, the size, the electromagnetic interference and the like are overcome, and the purpose of producing high-frequency waveform microwave pulse signals with any waveform through the electronic technology is achieved.

The invention discloses a case drilling and tapping integrated type automatic device which comprises a machine frame, a drilling power head and a tapping power head. The machine frame comprises a supporting table and a plurality of supporting legs. A workpiece rotating mechanism is arranged on the supporting table and comprises a rotating table and a servo motor. Four stations are arranged on thesupporting table and include two clamping stations, one drilling station and one tapping station. Four workpiece clamps are evenly distributed on the outer circle of the rotating table, and each workpiece clamp corresponds to one station. The drilling power head is installed on the drilling station, and the tapping power head is installed on the tapping station. A PLC integrated machine and a start-stop button are arranged on the supporting table. An air control positioner for precisely positioning the rotating table is arranged on the supporting table. The drilling process and the tapping process of case positioning pin holes are synchronously completed on one machine, the automation degree is improved, machining processes are saved, production efficiency is improved, positioning precision is high, drilling and tapping consistency is good, and product quality is ensured.

The invention discloses a binary and multi-valued memristor based on HfO2-x, a preparation method, and an application of the binary and multi-valued memristor. The memristor comprises an upper electrode, a function layer, and a lower electrode. An HfO2-x material which has different grown-in oxygen vacant sites is prepared through the control of the proportion of argon to oxygen. In a DC scanning mode, an HfO2-x memristor with the low atomic ratio does not need to be preprocessed, is low in operation voltage and has the gradual-change resistance transition, but an HfO2-x memristor with the high atomic ratio is larger in window, and is sharper in resistance transition. Memristors in different resistance transition forms employ a continuous high-speed pulse and continuous multi-window pulse testing method to verify the binary and multi-valued mode. The resistance transition different represented by the memristor of the above type is of guide significance to the atomic ratio in different mode application occasions. The method can be used for logic calculation and neural morphology storage. The fine tuning of the proportion of deposition atmosphere is carried out under the same material technology, and the calculation and storage modules can be integrated in the same chip, thereby further speeding up the development of a calculation and storage integrated chip.

The invention provides an automatic disassembling device for a container rotating lock, a system comprising the same and a disassembling method. The automatic disassembling device for the container rotating lock comprises a body, a jacking mechanism, a rotating mechanism, a claw and a push rod telescoping mechanism. The jacking mechanism and the rotating mechanism are arranged in the body. The rotating mechanism is located above the jacking mechanism. The claw is connected with the rotating mechanism and used for jacking to clamp the rotating lock. The push rod telescoping mechanism is fixed to the body, located above one side of the body and used for pushing the rotating lock. The automatic disassembling system for the container rotating lock comprises the disassembling device and is adopted in the disassembling method. According to the automatic disassembling device for the container rotating lock, the system comprising the same and the disassembling method, the bottleneck of container transportation is effectively broken through, efficiency can be improved, cost is reduced, and the personal safety of operators is protected.

The invention discloses a method for preparing pyrolytic oil from waste polyolefin plastic and brominated flame-retardant waste plastic. The method comprises the following steps: (1) separately breaking the brominated flame-retardant waste plastic and waste polyolefin plastic into brominated flame-retardant waste plastic particles and waste polyolefin plastic particles with particle sizes of 75-250mu m, and uniformly mixing the brominated flame-retardant waste plastic particles and waste polyolefin plastic particles to obtain a pyrolytic reaction raw material; and (2) putting the pyrolytic reaction raw material into a fixed-bed reactor, heating to 500 DEG C for a pyrolytic reaction, condensing the gas obtained by the pyrolytic reaction, and filtering and collecting the pyrolytic oil. In the invention, the problems in recycling brominated flame-retardant waste plastic can be effectively solved, the bromine content of the obtained pyrolytic oil is low, and the pyrolytic oil can be used as environment-friendly fuel.

The invention discloses an ultra-wideband white noise source based on parallel connection of multiple single-mode chaotic lasers. By adopting the photoelectric conversion technology, the bottleneck ofthe electronic bandwidth is broken through, and the white noise source which is simple in implementation scheme structure and easily generates white noise with larger bandwidth is achieved. In the scheme of the invention, the power for outputting the white noise depends on the responsivity of a photoelectric detector and the power of each chaotic laser, and compared with the existing electronic noise source, the output power is easy to adjust and the exportable maximum power is higher. In addition, according to the technical scheme of the invention, a plurality of single-mode chaotic lasers are connected in parallel to generate ultra-wideband white noise, and the spectral density of the generated noise is more uniform.

The invention relates to the technical field of artificial intelligence algorithms, and particularly provides a federated learning model training method based on knowledge distillation, which comprises the following steps: receiving control parameters for model training from a server; training the initial first neural network model according to the control parameter and the local data sample to obtain a first model parameter; sending the first model parameter to the server; receiving a second model parameter of a second neural network model from the server; and utilizing a knowledge distillation method to enable the first neural network model to learn knowledge of the second neural network model, and training to obtain an updated first neural network model. According to the method, the existing data island problem is effectively solved by constructing the federated learning system, and meanwhile, the knowledge distillation module is added in the federated learning framework system, so that the algorithm model can be trained and optimized on the basis of knowledge of all training data at the same time; and the training effect of the federal learning framework system is further improved.

The invention discloses an ingot mold for preparing a steel ingot with a large single weight and a pouring method, belonging to the technical fields of steel ingot pouring equipment and pouring methods. The ingot mold is designed to be dynamically opened and closed, the steel ingot is dynamically pressed down in a steel ingot cooling process through the force of a hydraulic ejector rod, so that looseness in the steel ingot is eliminated; accelerated cooling of the steel ingot is implemented by the cooling water in the ingot mold through a heat conduction effect of the ingot mold, and a square ingot with a good interior tissue is finally prepared. According to the ingot mold for preparing the steel ingot with the large single weight and the pouring method, improvement of the interior tissue of the steel ingot can be promoted, the cooling uniformity of the steel ingot is improved, the feeding deficiency of a heart part of the steel ingot is reduced, the horizontal restraint of the surface of the steel ingot is increased, and the probability of cracks on the surface of the steel ingot is reduced. The pouring problem of the steel ingot with the large thickness, which troubles iron and steel enterprises for a long time, is solved, the pouring quality of the steel ingot with the large thickness is greatly improved, a bottleneck for restricting production of a steel plate with a large-thickness specification is broken, the production efficiency is greatly improved, and the economic benefit and the social benefit are remarkable.