31results about How to "Guaranteed reproducibility" patented technology

The application discloses a multi-core cache consistency debugging method based on multi-view access and belongs to the field of multi-core processor debugging. The method is characterized in that a target address is specified in a main memory by a host computer through a JTAG debugging interface, five groups of data of CPU view, L1 data cache view, L1 instruction cache view, L2 view and real memory view corresponding to the address are read in turn, whether cache is invalid is judged by comparing data consistency, and a cache level inconsistent is marked. The debugging system comprises a built-in JTAG TAP controller, an enhanced debugging access module, a storage level access arbitrator and a data and state collector. The application realizes direct access of the JTAG interface to data of each level of cache, does not need to modify hardware or disable cache, does not interfere with system operation, can quickly locate cache consistency problems under a multi-core architecture, improves debugging efficiency and accuracy, and is suitable for debugging scenes of large-scale multi-core processors.

The invention discloses an SERS (Surface Enhanced Raman Scattering) flexible sensor based on dual-ion modification as well as a preparation method and application of the SERS flexible sensor, and belongs to the technical field of biomedical detection. A bacterial cellulose membrane (BCM) is used as a base material, cation modification (QBCM) is carried out through glycidyl trimethyl ammonium chloride (EPTMAC), anion modification (TABCM) is carried out through tannic acid (TA), a functional substrate with asymmetric charge distribution and a porous structure is constructed, then Ag NPs are loaded on the modified base material through an in-situ reduction method, the QBCM-coated AgNPs and TABCM-coated AgNPs dual-ion active substrate is formed, and the AgNPs / TABCM-coated AgNPs dual-ion active substrate is used for preparing the composite material. The SERS flexible sensor is integrated through a layer-by-layer self-assembly (LbL) technology; the SERS flexible sensor can realize specific enrichment and synchronous detection of anionic kynurenic acid (KYNA) and cationic spermine (Spm) in urine, and is low in detection limit and good in reproducibility.

The invention provides a carbon fiber gauze, a preparation method thereof and a carbon fiber reinforced composite material. The carbon fiber gauze comprises short carbon fibers and carbon nanotubes, wherein the carbon nanotubes are bonded to the short carbon fibers through a polymer adhesive; and the mass percent of the carbon nanotubes in the carbon fiber gauze is 1.8-18.6%. According to the carbon fiber gauze, chopped carbon fibers and carbon nanotubes are organically combined, and a unique multi-scale hierarchical toughening structure is constructed. When the carbon fiber gauze is used in a carbon fiber composite material, the chopped carbon fibers play a role in bridging and deflecting cracks among layers, so that the propagation of microcracks can be effectively inhibited. And the carbon nano tube absorbs energy in a resin-rich area at the crack tip of the carbon fiber composite material through mechanisms such as pulling out and breaking, so as to inhibit the generation of nano-scale cracks. In addition, the carbon nanotubes are adhered to the short carbon fibers through the polymer adhesive, so that the carbon nanotubes can be firmly fixed on the short carbon fibers, and the functional stability of the carbon fiber gauze or the carbon fiber composite material is ensured.

The application discloses a kind of double-layer multileaf collimator leaf amplification factor adjustment methods, comprising: the grating blade stroke is segmented according to preset interval;Respectively, the upper grating and the lower grating are independently calibrated, the equal center plane field width of each segmented point is measured, and the amplification factor is calculated;For the segmented point that cannot be directly measured, segmented linear interpolation is used to complete;Amplification factor is written into control system and the whole stroke accuracy is verified through multi-field strip field.The application fits the nonlinear characteristics of single-focusing grating amplification factor by segmented measurement, adapts to the difference of double-layer structure by independent calibration of upper and lower layers, realizes full-stroke coverage by interpolation completion, and finally improves the positioning accuracy of field boundary, significantly improves the accuracy and safety of radiotherapy.

This invention discloses a method and system for intelligent generation and online compliance verification of concrete mix proportions, relating to the fields of intelligent concrete engineering and industrial internet technology. The method includes training a multi-objective prediction model using a joint loss function containing a supervision error term and an engineering physical constraint penalty term, guiding the model output to tend towards the engineering rule boundary set; inputting the sample to be predicted into the model to obtain the original prediction result; verifying the original prediction result; if it does not meet the engineering rule boundary set, generating a pattern vector, and matching a deterministic repair operator sequence from a repair strategy mapping table based on the pattern vector and key process parameters, thereby obtaining the final mix proportion that meets the constraints through repair; if the repair fails, outputting a safe alternative mix proportion or reverting to a historical effective mix proportion, and issuing an alarm. This invention, through the synergy of soft constraint training and rule-based repair, ensures that the output meets 100% of the engineering constraints while maintaining accuracy.

This invention provides a collector for recovering platinum group metals (PGMs) from spent catalysts, its preparation method, and its application, belonging to the technical field of precious metal recovery. The collector comprises a copper matrix, a flux, a framework support, and a lattice activator: the copper matrix, flux, and lattice activator are loaded on the surface of the framework support; the copper matrix is ​​elemental copper or a copper-based compound; the flux is boric acid or a borate; the framework support is a porous inorganic material; and the lattice activator is tin, a tin alloy, or a metal sulfide. The collector serves as a collector for the pyrometallurgical recovery of PGMs from spent catalysts. This invention constructs a multi-component synergistic collector composed of a copper matrix, flux, framework support, and lattice activator, which significantly improves the recovery rate of PGMs, especially rhodium, from spent automotive exhaust purification catalysts in pyrometallurgical treatment, and reduces the smelting temperature required for pyrometallurgical treatment, thus significantly reducing energy consumption.

The application relates to the field of wind power blades, and discloses a wind power blade manhole plate and manhole cover plate as well as a preparation method and application thereof. The method comprises the following steps: (1) mixing unsaturated polyester resin, a thickening agent, an initiator, a crosslinking agent, a low shrinkage agent, a release agent, a polymerization inhibitor, an inorganic filler and waste glass fibers, and then filling the mixture into a mold for preheating; (2) performing mold pressing on the preheated material to obtain a preformed material; and (3) performing heat treatment on the preformed material, and then performing demolding to obtain the wind power blade manhole plate and manhole cover plate. The method is prepared by creatively adopting a mold pressing forming method, and waste glass fibers are used as raw materials for preparation, so that the preparation cost is saved, and the preparation efficiency is improved.

This invention relates to the field of database testing technology and discloses a database fuzzing method based on copy-on-write. The method includes: initializing a persistent layer to obtain a baseline storage state; creating a temporary layer and associating it with the persistent layer to form a union storage view; during test case execution, redirecting write operations to the temporary layer via copy-on-write, while read operations are read from either the temporary or persistent layer depending on whether the data exists; after testing, deleting and rebuilding the temporary layer to quickly restore the initial state; and repeating this process until all test cases are completed. This application constructs a two-layer storage structure consisting of a persistent layer and a temporary layer, recording all test changes in the temporary layer. After testing, only deleting and rebuilding the temporary layer is needed to quickly reset the repository, avoiding a complete initialization process and significantly improving the efficiency of database fuzzing.

The invention provides an annular double-T ventilation structure and device based on pore anisotropy, and belongs to the technical field of grain storage. The annular double-T ventilation structure comprises an annular main air duct, two symmetrically-arranged air inlets and two T-shaped air ducts which are located in the annular main air duct and are in central symmetry; ventilation holes are formed in the walls of the annular main air duct and the T-shaped air duct, the T-shaped air duct comprises a longitudinal branch pipe and a transverse branch pipe, one end of the longitudinal branch pipe is connected with the air inlet, and the other end of the longitudinal branch pipe extends towards the center and is connected with the transverse branch pipe; a composite ventilation network with the outer ring and the inner T is formed, and the problem of ventilation blind areas in the center area of the bottom of the silo caused by pore anisotropy when wet grains containing impurities are stacked is effectively solved; the invention further provides a wet grain ventilation and cooling device comprising the ventilation structure, the ventilation uniformity of a grain pile can be remarkably improved, the grain temperature can be remarkably reduced, the wet grain ventilation and cooling device is suitable for rapid warehousing ventilation of high-impurity-content wet grains, strict cleaning is not needed, and time and cost are saved.

This invention discloses a culture medium for the biosynthesis of indigoidine and its application, belonging to the field of microbial fermentation and synthetic biology technology. Addressing the problems of low yield, insufficient precursor supply, byproduct accumulation, and poor scale-up stability in existing culture media for indigoidine fermentation, this invention provides a core culture medium system. This medium, per 1L, includes: 10-50g carbon source, 5-20g nitrogen source, 10-30g L-glutamine, and 0.1-20g inorganic salts, with optional addition of 0.1-20mL trace element salt solution and / or vitamin components. The pH is 6.0-7.5. The carbon source is selected from glucose, glycerol, sucrose, dextrin, or combinations thereof; the nitrogen source is selected from ammonium sulfate, yeast extract, peptone, or combinations thereof. This culture medium can significantly increase the yield of indigoidine synthesized by recombinant *E. coli* and effectively inhibit acetic acid accumulation. In a 5L fermenter, compared with LB medium, this medium can increase the indigoidine yield by at least 80% while reducing the acetic acid concentration in the fermentation broth by more than 60%, showing good prospects for industrial application.

This invention discloses a fluorescence emission-independent excitation carbon quantum dots and its preparation method. The method includes: Step 1, mixing o-phenylenediamine and boric acid at a molar ratio of 4 mmol:(1.2~4 mmol), grinding the mixture, transferring it to a square ceramic boat, and placing it in an oven. Under air atmosphere, the temperature is increased from room temperature to 100~135℃ at a heating rate of 5℃ / min, and the solid-phase reaction is carried out for 4~6 h. The mixture is then naturally cooled to room temperature to obtain a brownish-red solid; Step 2, dissolving the brownish-red solid in deionized water and sonicating it to obtain a yellowish-brown liquid; Step 3, filtering the yellowish-brown liquid to obtain a pure carbon quantum dot aqueous solution; Step 4, freeze-drying the carbon quantum dot aqueous solution to obtain carbon quantum dot powder. This invention simplifies the process flow, reduces energy consumption and post-processing complexity, and provides controllable reaction process. The prepared carbon quantum dots exhibit fluorescence emission-independent characteristics and long-wavelength orange fluorescence.

The invention discloses a high-efficiency stable Pt-based catalyst for dehydrogenation of n-octane and a preparation method of the high-efficiency stable Pt-based catalyst, and belongs to the technical field of catalysis. The catalyst takes aluminum oxide, silicon dioxide or a Silicalite-1 molecular sieve as a carrier, and active components comprise a main active component platinum and three functional aids, wherein the first aid is at least one of lanthanum, cerium and zirconium, the second aid is at least one of zinc, copper, tin and manganese, and the third aid is at least one of potassium, sodium, calcium and magnesium. The preparation method comprises the following steps: sequentially loading the components on the carrier by adopting a step-by-step impregnation process, and carrying out ultrasonic treatment, drying and roasting to obtain the catalyst. The catalyst has high catalytic activity, high octene selectivity (more than 70%), low cracking byproduct selectivity (less than 3%) and excellent long-term operation stability in the dehydrogenation reaction of n-octane through the synergistic effect of multiple components, and the preparation process is simple and controllable and is easy for industrial production.

This invention relates to the field of tobacco product quality testing, and more particularly to a rapid detection system and method for aroma concentration in flavor-enhancing cigarettes. The detection system includes a carrier gas supply module, an aroma sampling module, and a gas detection module connected sequentially along a gas path. The carrier gas supply module is used to adjust a first preset parameter value to provide a target clean carrier gas. The aroma sampling module is used to drive the target clean carrier gas to flow through the sample to be tested at a second preset parameter value, generating an aroma-carrying gas. The gas detection module is used to detect the concentration of the target aroma substance in the aroma-carrying gas. This invention can highly simulate the real smoking environment and achieve standardized gas generation and collection, thereby providing stable, reliable, and sensorily correlated gaseous samples for rapid detectors such as PID, and achieving efficient and accurate evaluation of the aroma concentration consistency of flavor-enhancing cigarette products.

A clamping structure artificial heart valve comprises a first valve seat body, a second valve seat body and artificial valve leaflets; the second valve seat body is arranged outside the first valve seat body, and the artificial valve leaflets are arranged between the first valve seat body and the second valve seat body; the second valve seat body is provided with a split line, the midpoint of the split line intersects with the central axis of the second valve seat body, and the split line divides the second valve seat body into two halves. The present application improves the symmetry of the whole artificial valve, avoids the influence of traditional sewing on the peripheral sewing edge part of the artificial valve leaflets, prolongs the service life of the artificial heart valve, ensures the replicability and quantitative production of the whole structure of the artificial valve, and improves the production efficiency.

A bio-based coordination-type foam dust suppressant, its preparation method, and its application belong to the field of dust control technology. The bio-based coordination-type foam dust suppressant comprises the following components in parts by weight: 10-30 parts sodium alginate, 1-8 parts α-hydroxycarboxylate, 0.2-2 parts coordination intermediate stabilizer, 6-20 parts lauryl alcohol, 3-15 parts dodecyl vinyl ether, 2-5 parts ethylene glycol laurate, 1-2 parts isopropyl myristate, 2.5-10 parts dodecyl diethylene glycol ether, 1-10 parts dodecyl carboxylate, and 50-200 parts water. The bio-based coordination-type foam dust suppressant of this invention possesses coordination charge regulation capability, good biodegradability, and excellent foam stability, enabling efficient dust suppression.

This invention discloses a rapid detection method and system for the reheating degree of meat dishes based on electrochemical sensing, belonging to the field of food testing technology. Addressing the problem of difficulty in rapidly and accurately evaluating the reheating degree of meat dishes in existing technologies, this invention first places the meat dish to be tested in a space, generating headspace gas at a preset equilibrium temperature and time. An electrochemical sensor unit collects the complete time-response curve of the interaction between the headspace gas and the sensitive layer, extracting dynamic characteristic parameters such as response rise time, peak response value, time to reach peak value, curve integral area, and half-life of the fall phase. Simultaneously, it acquires ingredient attribute parameters and reheating method parameters. These parameters are then input into a pre-trained deep learning prediction model, which outputs the reheating degree level and displays it on a display unit. This method can be used in the catering industry, food processing, and home cooking for rapid detection of the reheating degree of meat dishes, ensuring food quality and food safety.

This invention provides a gradient silicon nitride ceramic femoral head prosthesis and its preparation method, relating to the technical fields of clinical medicine and biomaterials. The femoral head prosthesis is prepared from 88-94 parts of silicon nitride powder, 4-12 parts of sintering aid, 5-20 parts of tungsten carbide titanium, and 0-30 parts of pore-forming agent, wherein the pore-forming agent cannot be 0 parts. The gradient silicon nitride ceramic femoral head prosthesis of this invention retains the advantages of silicon nitride ceramics—low wear, low friction, high strength, high fracture toughness, and good chemical stability—at the interface between the femoral head prosthesis and the liner, while reducing wear on the titanium alloy femoral stem cone caused by the large hardness difference between the femoral head prosthesis and the liner. This reduces the incidence of organ toxicity, periprosthetic osteolysis, and aseptic loosening caused by metal wear debris, improves the survival rate of the femoral head prosthesis and the femoral stem cone, reduces the revision rate of replacement surgery, and saves patients' treatment costs.

The invention discloses a preparation method of a photocatalyst material, and belongs to the technical field of material preparation and pollution treatment. The method comprises the following steps: by taking bismuth citrate as a multifunctional precursor, firstly mixing the bismuth citrate with a titanium source, a manganese source and a cerium source in a solvent for gelation, then carrying out solvothermal reaction to form an intermediate, and finally carrying out programmed temperature control pyrolysis in an inert and oxygen-containing atmosphere. In the pyrolysis process, carbon element doping and manganese and cerium bimetal ion lattice embedding are synchronously realized, and a graded porous folded structure is constructed in situ by utilizing precursor decomposition gas. The method integrally solves the problems of weak visible light response, low mass transfer efficiency and poor stability of a traditional material, and the prepared material shows efficient inhibition and degradation efficiency on mold such as aspergillus flavus under simulated granary low-illumination visible light.

This invention belongs to the field of dialysis powder preparation, specifically relating to a porous, fast-dissolving sugar-containing dialysis powder and a method for preparing the porous, fast-dissolving sugar-containing dialysis powder based on freeze-drying spray. The method includes the following steps: (1) concentrating the sugar-containing dialysis solution to obtain a concentrated solution; (2) atomizing the concentrated solution and freezing the resulting atomized droplets to obtain solid ice crystal particles; (3) sublimating and drying the solid ice crystal particles under reduced pressure to obtain the porous, fast-dissolving sugar-containing dialysis powder. This dialysis powder is prepared using a specific freeze-drying spray technology, possessing the characteristics of porous particles, uniform composition, and rapid dissolution, while significantly reducing transportation volume and cost.

The utility model discloses a kind of fiber drawing experimental device based on press, including push assembly, fixed component and test piece;The fixed component is composed of support cylinder, fixed cylinder and support disc;The support cylinder is equipped with groove and fixed cylinder and is assembled;The fixed cylinder below is equipped with connecting protrusion and support cylinder and is assembled, inner wall is equipped with support groove and lifts support disc;The support disc is equipped with guide rail groove, test piece groove and fiber hole 1;The push assembly is composed of pressure disc, guide rail column, fixed disc, fixed ball and nut;The lower end of guide rail column is equipped with bolt;The fixed disc is equipped with bolt hole and fiber hole 2;The fixed ball is equipped with fiber hole 3;The test piece is composed of fiber and matrix;The fiber passes through fiber hole 1, fiber hole 2 and fiber hole 3, knot is fixed;The utility model discloses a kind of device capable of measuring the bonding relationship between fiber and matrix by press, solve the pain point that cannot be tested due to tensile test equipment shortage, have certain application prospect.

This invention provides a transaction-consistent retrieval enhancement generation method, system, device, and storage medium, relating to the field of information retrieval technology. The method includes: creating a read-only transaction snapshot for a query request and obtaining a snapshot identifier; performing query request retrieval and permission filtering under the consistent data view corresponding to the snapshot identifier to obtain a candidate document set; generating a structured draft of arguments and generating executable references for each argument; constructing a proof graph and determining the minimum supporting evidence set covering all arguments; calculating the reliability of each argument based on source independence and time consistency; generating an initial structured answer to the query request based on the minimum supporting evidence set and the calculated reliability data, and then outputting a structured result including the answer text, a citation list consisting of executable references, a proof graph identifier, and a snapshot identifier. This invention meets the engineering requirements of highly compliant industries for verifiability, reproducibility, and auditability.

The application discloses a kind of main control board for picosecond laser treatment system, including STM32 single-chip microcomputer and RS232 serial communication touch screen control circuit module, RS232 serial communication laser output control and state monitoring circuit module, opto-coupler isolated IO input circuit module, opto-coupler isolated IO output circuit module, analog voltage input circuit module, TFT card and USB data storage module, DAC circuit module, galvanometer control circuit module and network communication circuit module, the STM32 mainboard is driven by above-mentioned each functional circuit module to the peripheral equipment of corresponding electric control system.The application also discloses 755nm picosecond laser treatment electric control system.The application has big data function and network communication function, has AI auxiliary operation, internet of things system, teaching video function.Greatly improve the treatment effect, safety, reliability, effectiveness of product, reduce product cost, use difficulty, failure rate, maintenance rate and maintenance cost.

The invention relates to the technical field of ankle training equipment, in particular to an ankle rotating trainer. Due to the fact that the center rotating shaft of the rotating assembly corresponds to the rotating center of the ankle joint of the human body in the natural standing state, the ankle joint can be guided to be subjected to standard and controllable rotating training in cooperation with rotating motion around the preset rotating axis, motion compensation is not needed, and the standard uniformity of training is guaranteed; and the limiting and aligning structure can limit the rotation angle range of the rotary carrier, so that safety constraint is formed, and the training injury risk is reduced. Through the collaborative design of rotation guiding, safe limiting and stable bearing, the training process has consistency and repeatability, quantitative evaluation of the training effect is facilitated, the ankle joint rotation function standardized training requirement is met, the systematic use appeal of rehabilitation and exercise training scenes is met, and the training effect is improved. The problems existing in the prior art are solved.

The application discloses a kind of based on deep learning's pulse parameter intelligent detection method and system, the method is applied to the time-frequency data of transient astronomical signal is carried out automatic analysis, comprising: S1.image stage: the original FRB signal data observed by radio telescope is carried out physical correction, the original format of signal data is converted into the two-dimensional image of standardized time-frequency graph matrix;S2.detection stage: the time-frequency graph is input into deep learning model;Deep learning model utilizes its feature extraction capability, through a signal discrimination branch, automatically locates the time-frequency area where FRB pulse signal is located in background noise;S3.regression stage: after successfully locating signal area, network directly regresses each attribute of the target by two branches, so as to obtain the predicted value of each pulse parameter of FRB signal.The application integrates the extraction of multiple parameters into an end-to-end deep learning model, greatly improves the data processing speed, simplifies the processing procedure.

This invention relates to the field of silicone protective film technology, and more particularly to a low-index double-sided antistatic silicone protective film and its preparation process. By precisely controlling the thickness of the antistatic layer through double-sided corona treatment, dust removal and static elimination, and micro-gravure coating, combined with an organic silicone adhesive formulation and multi-stage temperature zone curing, the peel force fluctuations caused by uneven curing stress of the organic silicone layer after release film lamination are significantly reduced, resulting in a substantial improvement in the product's peel force stability. This effectively avoids defects caused by excessively high or low peel forces in traditional processes. Simultaneously, by constructing a database of the entire preparation process and introducing data mining algorithms for association rule analysis, the intrinsic correlation between key process parameters and product performance indicators can be systematically revealed, thereby generating objective process parameter optimization schemes. This overcomes the limitations of existing technologies that rely on experience for process parameters, ensuring the consistency and reproducibility of product performance between batches.

The invention relates to a soothing and bacteriostatic composition and application thereof in shower gel, and belongs to the technical field of cosmetics. The soothing and bacteriostatic composition disclosed by the invention comprises a fermentation substrate and a fermentation strain, wherein the fermentation substrate comprises a sargassum extract, an aesculus chinensis extract and a hemerocallis fulva flower extract; the mass ratio of the sargassum extract to the aesculus chinensis extract to the hemerocallis fulva flower extract in the fermentation substrate is 1: (0.1-0.7): (3-6); the fermentation strain comprises bailey sporospora. The soothing and bacteriostatic composition prepared from the fermentation substrate and the fermentation strain limited by the invention has the advantages of remarkably inhibiting the activity of hyaluronidase and inhibiting the activity of malassezia and propionibacterium acnes, and the soothing and bacteriostatic effects of the shower gel can be remarkably improved when the soothing and bacteriostatic composition is applied to the shower gel.

The application belongs to the technical field of semiconductor packaging manufacturing, and discloses a wire bonding defect online detection system based on visual identification, which comprises the following steps: pre-constructing a linkage rule library and a strong causal association rule library, assigning a chip ID to each chip to be detected, collecting and binding bonding process basic data to form a single-chip data base; performing regional directional imaging and standardized cross-path scanning on the bonding area, collecting multi-view optical images of the corresponding bonding area, aligning and correcting the coordinates, and generating an optical detection data set; determining the quantitative bonding features of the ROI of the chip packaging structure, filtering the interference signals, and generating a bonding defect quantitative result set; performing reliability classification of the bonding quality, synchronously generating a chip quality traceability data package; performing process correction trigger judgment and parameter adjustment on each batch, optimizing the linkage rule library and the strong causal association rule library, and forming a full-process closed-loop management link.

This invention discloses a conformal ultrasound patch structure for breast cancer monitoring, belonging to the technical field of breast monitoring devices. It includes a four-piece patch, a three-piece patch, an integrated wearable device, and hardware components. The four-piece and three-piece patches are respectively positioned at the breast location on the chest of the integrated wearable device, and the hardware components are also mounted on the integrated wearable device. This invention fixes multiple ultrasound patch units to preset positions on a flexible substrate, achieving systematic, blind-spot-free imaging of the four quadrants of the breast and the axillary tail region through the coordinated coverage of multiple patches. This effectively overcomes the imaging blind spots in the near-chest wall and axillary regions existing in prior art.

The application provides a kind of power semiconductor device dynamic parameter automatic extraction system, method and computer program product, it is related to power semiconductor device test technical field, including obtaining the test waveform data of power semiconductor device in pulse test process;The feature time point corresponding to the switching process of power semiconductor device is identified from test waveform data;Based on each feature time point, the turn-on, turn-off and reverse recovery dynamic parameters of power semiconductor device are calculated, which are output as the dynamic parameter automatic extraction result of power semiconductor device.The beneficial effect is that through the whole-process automation, standardized data processing and analysis method, various errors caused by manual operation are effectively avoided, the accuracy and reliability of dynamic parameter extraction result are greatly improved, the actual dynamic switching characteristics of power semiconductor device can be truly and accurately reflected, and accurate and standardized data basis is provided for device selection, drive design, loss analysis and reliability evaluation.

The application provides a data construction and dynamic resampling fine-tuning method and system for multi-dialect speech recognition. Firstly, the existing speech recognition model is used to recognize and transcribe the dialect audio, clean it, and perform environment-related data enhancement on the audio based on acoustic environment simulation. Secondly, the dialect type, gender and speech speed features of the audio are extracted, and the data set is divided into multiple category buckets according to the feature combination. In the batch generation stage of model fine-tuning, exponential decay probability is used for sampling in the bucket to meet the allocated basic extraction quota, and dynamic balance scores are used to guide cross-bucket compensation. Finally, combined with the ladder data enhancement suitable for the number of historical sample extractions, the model parameter update is completed. The application solves the problem that the existing dialect recognition method cannot simultaneously consider multi-dimensional attribute balance, sample coverage and over-sampling risk control, and improves the recognition robustness and generalization ability of the model in harsh recording environments and multi-dialect cross-scenarios.