37 results about "Particle number" patented technology

The invention discloses an ore-forming fluid main channel inference model based on particle filtering. The model comprises the following steps: collecting related data of a target ore deposit, establishing an inference database, and defining a state sequence for spatial discrete volume elements; carrying out statistics on known ore-containing body elements in all exploration information to serve as an initial particle swarm of particle filtering, and generating a space channel path of each particle; establishing a probability-velocity coupled ore-forming fluid ion state transfer model according to the particle space position and fluid dynamics; establishing a particle weight observation model based on a particle state transition likelihood function, and dynamically updating the fluid particle weight; spatial sampling is carried out on the particles through a resampling algorithm, weight particles are updated, judgment is carried out through a particle number threshold value, and a maximum posterior probability path is output. The model combines multivariate data constraint and a particle filter algorithm to dynamically estimate the main channel path of the metallogenic fluid in a three-dimensional geological space, and the problems that a traditional method is high in cost and a sampled sample is difficult to obtain are fundamentally solved.

The application discloses a metallogenic fluid main channel inference model based on particle filtering. The model comprises the following steps: collecting relevant data of a target deposit, establishing an inference database, and defining a state sequence of spatial discrete elements; performing statistics on ore-bearing elements known in all exploration information, taking the known ore-bearing elements as an initial particle group of particle filtering, and generating a spatial channel path of each particle; establishing a metallogenic fluid ion state transfer model coupled with probability and velocity according to the spatial position of the particle and fluid dynamics; establishing a particle weight observation model based on a particle state transfer likelihood function, and dynamically updating the weight of the fluid particle; performing spatial sampling on the particle through a resampling algorithm, updating the weight particle, and outputting a maximum posterior probability path through particle number threshold judgment. The model combines multivariate data constraint and particle filtering algorithm to dynamically estimate the main channel path of the metallogenic fluid in a three-dimensional geological space, and fundamentally solves the problems of high cost and difficult sampling sample acquisition of the traditional method.

The invention relates to an aerogel microstructure reconstruction method and system based on potential energy driving, belongs to the technical field of aerogel materials, and solves the problems of low aerogel microstructure reconstruction precision and difficult porosity control in the prior art. The method comprises the steps of generating target particles based on aerogel particle characteristics, generating a current Brownian motion parameter based on a random diffusion model, calculating aggregation potential energy when the target particles displaced based on the current Brownian motion parameter are in contact with an existing aggregation particle cluster, and when a potential energy threshold value is reached, calculating the current Brownian motion parameter. Determining the target particles and the existing aggregated particle cluster as a current aggregated particle cluster; and calculating the particle number of the current aggregated particle cluster, calculating the current porosity of the current aggregated particle cluster when the contact particle number requirement is met, and outputting the microstructure of the current aggregated particle cluster as the microstructure of the reconstructed target aerogel if the target porosity is reached. And effective control and accurate reconstruction of the porosity of the aerogel microstructure are realized.

Embodiments of the present application disclose a method for determining the number of effective particles, the method comprising: obtaining the total number of particles of a detection sample and pulse signals of each particle; performing waveform feature analysis based on the pulse signals to obtain waveform feature parameters of each particle, the waveform feature parameters at least including: a waveform feature type of the particle and a waveform feature value corresponding to the waveform feature type; generating a feature parameter distribution map of the particles in the detection sample according to the waveform feature type of each particle and the waveform feature value corresponding to the waveform feature type; determining an effective area of the feature parameter distribution map and the number of effective particles in the effective area. The waveform feature parameters of all the particles in the detection sample are counted to obtain the feature parameter distribution map, and the number of effective particles in the effective area of the feature parameter distribution map is further obtained, so that the number of particles that are misdetected as effective particles and not in the effective area is excluded, and a more accurate number of effective particles is obtained.

The invention discloses a moving abrasive particle detection and tracking method based on fusion of a Gaussian mixture model (GMM) and a watershed algorithm, which is characterized in that on the basis of acquiring abrasive particle moving targets based on the Gaussian mixture model (GMM), each extracted target is segmented by using the watershed algorithm based on distance transformation, so that the adhered abrasive particle targets can be accurately detected, and the detection accuracy is improved. Algorithm verification is carried out on abrasive particle videos in different stages, the detection accuracy of the abrasive particle adhesion target can reach 98.86%, the number, size and other characteristics of abrasive particles can be accurately extracted, and abrasion faults can be analyzed easily. In addition, on the basis of accurate detection of the adhered abrasive particle target, the SORT algorithm is further applied to track the multi-target abrasive particles in real time, and the result shows that the tracking effect of the adhered abrasive particle target is good.

The application discloses a method for distinguishing particle populations, a particle analysis device and a storage medium. The method comprises the following steps: obtaining a particle characteristic distribution histogram; wherein the first direction coordinate of the particle characteristic distribution histogram is a channel representing a particle characteristic, and the second direction coordinate of the particle characteristic distribution histogram is a particle quantity; determining a left boundary in the particle characteristic distribution histogram, and determining a right boundary based on a maximum particle quantity within a preset channel range on the right side of the left boundary, and determining a particle intersection area based on the left boundary and the right boundary; determining a reference line located in the intersection area; generating a corresponding flipped histogram according to the particle characteristic distribution histogram and the reference line; and determining a demarcation line of the particle population according to the flipped histogram, so as to distinguish the particle population. In this way, different particle populations can be distinguished stably and accurately.

According to the discrete solution method for particle number balance calculation in the particle coalescence and crushing process, the total extinction item and the correction new item on the feature points of the discrete interval are obtained, then the particle number distribution of the updated discrete interval is obtained, and finally the particle number density and the order particle number moment at the moment are obtained. And discrete solution for particle number balance calculation in the particle coalescence and crushing process is completed. The particle size is dispersed into a plurality of intervals, and each interval is provided with a plurality of feature points to reconstruct particle size distribution and a particle number moment, namely, the particle size distribution and the particle number moment are synchronously predicted; new items of all feature points are distributed according to new particle moments, and conservation of high-order moments is guaranteed; the number of particles is updated through the relative distance and the threshold value in the discrete interval, and the physical effectiveness of the number of particles is ensured.

A method and apparatus for measuring energy of a quantum chemistry system. In one aspect, a method includes: for a Hamiltonian that describes a chemical system and includes a sum of multiple terms; wherein each term includes i) a respective operator that affects a respective single particle-based rotation and ii) one or more particle density operators, for each group including terms having the same operator that affects the respective single particle-based rotation, repeatedly measuring expected values for terms included in the group, including: calculating, by quantum computing, the desired values of terms included in the group; performing a corresponding single particle based rotation on a qubit system encoding a state of the chemical system; measuring a Jordan-Wigner transform of one or more particle density operators in the set under a calculation basis to obtain respective measurements of the set; calculating a total number of particles or a spin component using the obtained measurements; determining whether the calculated total particle number or spin component is equal to a corresponding target value; and in response to determining that the calculated total population or spin component is equal to the corresponding target value, retaining the measurement for determining the energy of the chemical system by a classical calculation; and determining the energy of the chemical system by classical calculations using the obtained measurements.

The invention provides a correction device for a particle number measurement device, a correction program, a method for determining a particle size for correction, and a correction method for a particle number measurement device, which can reduce the influence of particle size change after classification and perform more accurate correction. A correction device (1) is provided with: a particle generation unit (10); an input unit (51); a particle classification unit (20); a particle detection unit (30); and a calculation unit (52) that, on the basis of a physical quantity factor that causes a change in the particle diameter in the particle detection unit (30) or the particle diameter distribution of the particles in the particle detection unit (30), determines the degree of change in the particle diameter of the particles reaching the particle detection unit (30) from the target particle diameter, and calculates the correction amount for the particle diameter extracted by the particle classification unit (20) on the basis of the degree of change. The particle diameter reaching the particle detection unit (30) becomes a target particle diameter. And a correction instruction unit (53) that instructs the particle classification unit (20) on the basis of the correction amount calculated by the calculation unit (52) so as to change the particle size of the particles extracted by the particle classification unit (20) to the particle size for correction.

The invention discloses a method for calibrating the conversion relation between the particle number and the mass concentration, and the method comprises the following steps: for aspheric particles, introducing a voltage correction coefficient through employing the concept of equivalent diameter, and obtaining a calculation formula of the mass concentration of the aspheric particles; in a test environment, the number of voltage pulses of the particulate matter sensor within a period of time is collected, the average value of peak voltage of each pulse is solved, and meanwhile, the PM2.5 mass concentration is collected by using a standard instrument; after the calibration coefficient and the proportionality coefficient are calculated and obtained by combining the mass concentration measured by the standard instrument and the quantity concentration detected by the particulate matter sensor, the calibration coefficient and the proportionality coefficient are substituted into a formula to calculate the mass concentration corresponding to the quantity concentration detected by the particulate matter sensor, and meanwhile, the measurement precision of the particulate matter sensor is guaranteed when the particulate matter concentration changes suddenly.

The application relates to the technical field of atomic spectrum detection, in particular to an FL-LIBS calibration-free method and device based on non-gated acquisition, equipment and a medium. The method comprises the following steps: obtaining a corrected spectrum and determining a target reference element; obtaining a plurality of candidate vectors and determining candidate simulation spectra; iteratively updating each candidate vector; determining a target simulation spectrum and an optimal vector; determining a target electron temperature and a target particle number density; determining the particle number densities of other elements in the sample to be measured according to the target electron temperature; and performing normalization calculation on the target particle number density and the particle number densities of the other elements to obtain the concentration composition of the sample to be measured. The application generates a plurality of unknown parameter groups, i.e. candidate vectors, and finds the optimal vector that best matches by means of an optimization algorithm, thereby providing a method for obtaining the electron temperature required for time-integrated spectrum in the case of being free from a high-speed gated detector, and realizing fast and accurate calibration-free quantitative analysis of FL-LIBS.

The application relates to a target detection pre-tracking method and system based on fuzzy control optimized particle filtering, and belongs to the field of target tracking. Particle states are predicted, and particle weights are calculated, the particle with the largest weight is regarded as an optimal particle, and the space near the optimal particle is regarded as an optimal region; the distance between the particle and the optimal particle and the particle ratio in the optimal region are calculated and taken as inputs of a fuzzy controller, a moving coefficient is output after a process of fuzzification, fuzzy reasoning and defuzzification; the particle state is updated according to the moving coefficient, and the particle with a lower weight is moved to a high-likelihood region; the iteration is performed for multiple times until the number of particles in the optimal region exceeds a threshold value; and the state of the target is estimated according to the particle state. The application can effectively alleviate the particle impoverishment problem, improve tracking accuracy, control particle movement through the fuzzy controller, be adaptively applied to different environments and scenes, and has good robustness and interpretability, and the rules can be expressed in natural language.

The application discloses a kind of thermal-mechanical-fission product diffusion coupling methods of coated particle dispersion fuel pellets, steps as follows:1, set up and establish random distribution of coated particle dispersion fuel three-dimensional model;2, determine and set respectively applicable to complete coated particle and failure coated particle heat transfer module, mechanics module, diffusion module and auxiliary model;3, carry out the multi-physics field coupling performance analysis calculation of fuel pellet;4, extract and store the stress of all coated particles in fuel pellet and determine the failure state of coated particle;5, count the number of failure coated particles and change the failure coated particle calculation module;6, repeat steps 3-5 to perform fuel performance analysis calculation until the end of burnup.The application can accurately obtain the temperature field, stress-strain field, fission product concentration distribution, fission product release amount and failure particle number of dispersion fuel pellets.

A discrete solution method for particle number balance in the process of particle coalescence and breakage is provided, total extinction items and modified new generation items on the characteristic points of discrete intervals are obtained, then the particle number distribution of the updated discrete interval is obtained, finally the particle number density and order particle number moment at the moment are obtained, and the discrete solution for particle number balance in the process of particle coalescence and breakage is completed. By discretizing the particle size into several intervals, multiple characteristic points are set in each interval to reconstruct the particle size distribution and particle number moment, that is, to simultaneously predict the particle size distribution and particle number moment; the new generation items of each characteristic point are distributed according to the new generation particle moment, so as to ensure the conservation of high-order moment; the particle number is updated through the relative distance and threshold value in the discrete interval, so as to ensure the physical validity of the particle number.

This invention discloses a machine learning-based method and system for predicting particle migration and blockage in fractures. The method includes the following steps: First, preset data on fracture roughness coefficient (JRC), flow velocity, equivalent particle size, and particle number; construct a fracture model with realistic shape and conduct a visualization migration experiment; record fracture blockage label data; input the parameters and labels into a neural network binary classification probability model with a multilayer perceptron as its core, and obtain a blockage probability prediction function through training; based on the trained model, perform sensitivity analysis and feature importance evaluation, and output the ranking of the impact of blockage probability on JRC, flow velocity, equivalent particle size, and particle number, thereby achieving the prediction of particle blockage events within fractures. This invention studies the particle blockage mechanism inside fractures under the coupling effect of multiple factors, providing a scientific basis for the design and construction of geotechnical engineering.

The present invention provides a method for simulating changes in particle number concentration and particle size spectrum distribution during new particle generation, including calculating relevant characteristic parameters during a new particle generation event; calculating the impact of atmospheric transport on the new particle number concentration during a new particle generation event; determining upper and lower boundaries of the simulation based on actual measurements of the particle number concentration and particle size spectrum distribution; and simulating changes in the particle number concentration and particle size spectrum distribution during a new particle generation event using aerosol dynamics. The present invention improves existing dynamic equations for calculating new particle generation events, considers the impact of atmospheric transport on changes in particle number concentration, and improves the accuracy of simulating changes in particulate matter during new particle generation events. The present invention can quantitatively evaluate the impact of various parameters on the particle number concentration during a new particle generation event, which helps to evaluate the impact of new particle generation events on atmospheric particulate matter. It can also evaluate the causes of atmospheric pollution and provide an analytical method for global climate change analysis.

The invention discloses a particle number state prediction method and device, equipment and a medium. The method comprises the steps of performing data prediction on current state information based on a target system model corresponding to a target particle counter and target noise parameter information to determine a basic state prediction value and a basic measurement prediction value corresponding to a target sample; performing covariance calculation on the basic state prediction value based on a preset singular value decomposition method to determine a prediction covariance error, and performing residual calculation on the basic measurement prediction value based on a preset residual rule to determine a measurement prediction error; and performing gain calculation on the prediction covariance error based on a preset adjustment fusion strategy to determine a target gain, and performing state updating on the basic state prediction value based on the target gain and the measurement prediction error to obtain a target state prediction value corresponding to the target sample. According to the technical scheme, the influence caused by multiplicative noise can be effectively reduced, and the accuracy of a particle number state result is improved.

The invention discloses an environment-friendly gas arc particle component calculation method based on a system entropy increase principle in the field of low-carbon environment-friendly power equipment, and the method comprises the steps: receiving the initial particle data of an environment-friendly gas arc system under different gas types in a variable electric field environment, and calculating the entropy S of the arc system according to the initial particle data; translational entropy components of the electrons and the heavy particles and internal entropy components of the electrons, the monatomic particles and the polyatomic particles are calculated; the differential form of the arc system entropy is obtained by assuming that the ratio of the chemical potential of particles to the temperature is irrelevant to the number density; and starting to iterate the arc particle components from the initial value until the entropy value of the arc system reaches the maximum, and obtaining the final particle component distribution. Compared with a traditional method, the method has the advantages that a predefined chemical reaction path does not need to be considered, arc particle components can be calculated more quickly, and the method is also suitable for condensed substances with phase change and wider in application range.

The invention provides a particle number concentration particle size spectrum distribution change simulation method in a new particle generation period. The method comprises the following steps: calculating related characteristic parameters in a new particle generation event period; calculating the influence of the atmospheric transmission effect on the new particle number concentration during the new particle generation event; determining upper and lower boundaries of simulation based on the actually measured particle number concentration particle size spectrum distribution; and simulating particle number concentration particle size spectrum distribution change during a new particle generation event by adopting aerosol dynamics. According to the method, the dynamic equation during the period of calculating the new particle generation event in the prior art is improved, the influence of the atmospheric transmission effect on the particle number concentration change is considered, and the accuracy of simulating the particle change in the new particle generation event is improved; according to the method, the influence of each parameter on the particle number concentration in the new particle generation event can be quantitatively evaluated, and the influence of the new particle generation event on the atmospheric particles can be evaluated; the air pollution cause can be evaluated, and an analysis method is provided for global climate change analysis.

The embodiment of the invention discloses a high-pressure gas switch arc plasma particle component prediction method, system, medium and equipment, and the method comprises the steps: constructing a thermochemical database, and storing the thermodynamic parameters of SF6, air, fluorocarbon and dissociation / ionization decomposition products thereof, and metal steam; the method comprises the following steps: performing atomic-scale decomposition on a detected arc extinguishing medium to identify basic elements, extracting metal vapor, neutral particles containing the elements and charged ions generated by ionization of the neutral particles in combination with a database, and forming a candidate particle list; constructing a reaction equation library (reactants and products are from candidate lists) on the basis of mass conservation, and determining dominant reaction paths under different temperatures and pressures; determining particle number density distribution during balance according to the dominant path, constructing a neural network model taking temperature pressure as input and number density as output, defining a loss function and completing training; and finally, inputting the current arc temperature pressure to quickly obtain the corresponding population density distribution so as to provide support for the optimization of the arc extinguishing performance of the high-voltage switch.

The present application relates to the technical field of numerical simulation, and discloses a method for predicting the distribution characteristics of particles in a valve under wet gas-solid conditions. The method comprises establishing a three-dimensional model of the valve, dividing the model into grids, correcting the tangential and normal restitution coefficients in combination with the particle collision and rebound characteristics under wet gas-solid conditions, carrying out numerical simulation using the corrected collision and rebound model, and obtaining simulation data. Through data extraction and image processing, the flow distribution characteristic map and the particle distribution characteristic map inside the valve are generated, the particle accumulation area is determined according to the characteristic maps, the particle number density is extracted, and the high-concentration particle distribution inside the valve is quantitatively analyzed. Based on the quantitative analysis results, the particle capture rate parameter is extracted, and the particle capture characteristics caused by the wall liquid film under wet gas-solid conditions are obtained. The present method can effectively predict the particle distribution and accumulation characteristics inside the valve, and provide a basis for valve design and optimization.

The application discloses a kind of secondary neutron radiation field fast calculation method in wafer proton irradiation process, comprising: step 1, establishing Monte Carlo program source term calculation region, the geometric model of wafer bombarded by proton beam is established using Monte Carlo program, to simulate the irradiation process of proton accelerator;Step 2, using program to establish spherical detector covering wafer, record the energy spectrum, particle number and direction information of secondary neutrons, and use it as the source term of subsequent calculation, carry out next step calculation;Step 3, using neutron division cross section method, according to the existing source term information, the dose influence in space and outside shielding wall is calculated.The application can significantly improve the calculation speed of radiation field by coupling two methods, and the calculation speed of some scenes is improved by more than 100 times;Through the coupling calculation of neutron division cross section method, the use of Monte Carlo database is reduced, the high-difficulty modeling requirement of Monte Carlo method is avoided, and the use threshold is reduced.

The invention discloses a different-diameter particle efficient search algorithm for discrete element numerical calculation, and belongs to the technical field of particulate matter mechanics and numerical calculation. According to the algorithm, a different-diameter particle system is constructed, the size of a background grid unit is set according to the minimum particle size, a grid system covering a full computational domain is established, a unique number is distributed to each particle, and the mapping relation between particle space coordinates and background grids is established. And determining an influence domain of the particles according to the coordinates of the particles, quickly searching possible contact particles, and establishing a quick search mechanism based on grid topology. By traversing the grids in the influence domain and storing the particle numbers in the same or adjacent grids, repeated pairing is automatically eliminated, and the contact pair is ensured to be unique. And finally, carrying out geometric contact detection on the candidate contact pair, comparing the particle spacing with the radius sum to judge whether contact exists or not, and outputting a final contact list. Compared with a traditional global search algorithm, about 60%-80% of invalid contact judgment can be reduced, the calculation efficiency is remarkably improved, and the calculation precision is guaranteed.

The invention discloses an acceleration method for solving a neutron noise problem through a Monte Carlo method, and the method comprises the steps: 1, constructing a neutron transport critical problem based on reactor core parameters, calculating a noise source item, and solving the neutron noise problem; 2, pre-dividing an iteration stage into an acceleration generation, a convergence generation, a redundancy generation and a statistical generation; 3, in an acceleration generation, realizing rapid convergence of real part distribution and imaginary part distribution of particles in the noise fission library by adopting less particle number simulation; 4, switching to normal particle number simulation when convergence is carried out, and dynamically monitoring a source particle distribution convergence state based on an online convergence judgment criterion; and 5, after convergence, skipping a redundant generation, directly entering a statistical generation, and counting and outputting a result. According to the method, a staged iteration mechanism and online convergence judgment are innovatively combined, convergence is greatly accelerated, and computing resource consumption is reduced. While the calculation precision is ensured, the efficiency bottleneck of the traditional Monte Carlo method in neutron noise analysis is overcome, and an efficient solution is provided for engineering-level Monte Carlo neutron noise simulation.

A computing device including one or more processing devices configured to receive classical shadow measurement results associated with a fermion wavefunction. The fermion wavefunction may describe a particle-number-conserving fermion system. The one or more processing devices may compute an estimated k-reduced density matrix (k-RDM), where k is a number of ladder operator pairs. Computing the estimated k-RDM may include computing, as terms of the estimated k-RDM, traces of respective products of a number operator of the particle-number-conserving fermion system, a single-particle basis rotation matrix dependent upon the classical shadow measurement result, elementary symmetric polynomials of Majorana bivectors, and a conjugate transpose of the single-particle basis rotation matrix. Computing each trace may include iteratively computing derivatives of a Pfaffian. The one or more processing devices may output the estimated k-RDM.

The present invention discloses a method for measuring the concentration profile of impurity bare nuclei using active spectroscopy, comprising: step 1, obtaining the beam density of a neutral beam during its travel; step 2, obtaining the ratio of the number density of particles in the excited state to the ground state in the neutral beam atoms; step 3, calculating the charge exchange recombination radiation rate coefficient of the neutral beam atoms and the impurity ions based on the obtained ratio of the number density of particles in the excited state to the ground state in the neutral beam atoms; step 4, measuring the active spectrum intensity of the impurity ions, and calculating the impurity ion concentration profile distribution in combination with the obtained beam density and charge exchange recombination radiation rate coefficient. This method calculates the profile distribution of the impurity bare nucleus concentration through the absolutely calibrated active spectrum intensity of the impurity ions, the neutral beam density, and the charge exchange recombination radiation rate coefficient, thereby improving the measurement of impurity concentration and providing the necessary physical parameters and experimental data support for further research on the control, transport, and internal physical mechanisms of plasma.

The invention belongs to but is not limited to the technical field of volume scattering characteristic calculation, and particularly relates to a method and a system for calculating volume scattering characteristics of alumina cluster particles, which are used for calculating statistical average scattering characteristics of single alumina cluster particles with different basic particle numbers; calculating the number of the alumina cluster particles under different particle numbers according to the logarithmic normal distribution of the number of the alumina cluster particles to obtain scattering characteristics of the alumina cluster particles under different particle numbers; and obtaining the volume scattering characteristic of the aluminum oxide cluster particles through the scattering characteristic of the single cluster and the particle number distribution of the cluster particles. According to the method for calculating the scattering property of the aluminum oxide cluster particles, the scattering property of the aluminum oxide cluster particles in unit volume can be obtained through detailed particle counting and averaging treatment of optical properties. The innovative method can promote the development of material science, optics and related fields.

A computing device including one or more processing devices configured to receive classical shadow measurement results associated with a fermion wavefunction. The fermion wavefunction may describe a particle-number-conserving fermion system. The one or more processing devices may compute an estimated k-reduced density matrix (k-RDM), where k is a number of ladder operator pairs. Computing the estimated k-RDM may include computing, as terms of the estimated k-RDM, traces of respective products of a number operator of the particle-number-conserving fermion system, a single-particle basis rotation matrix dependent upon the classical shadow measurement result, elementary symmetric polynomials of Majorana bivectors, and a conjugate transpose of the single-particle basis rotation matrix. Computing each trace may include iteratively computing derivatives of a Pfaffian. The one or more processing devices may output the estimated k-RDM.

The present invention discloses an improved particle filter localization and mapping method based on the harmony search algorithm, which includes initializing particles and particle weights; obtaining the particle set at the current moment according to the proposal distribution and calculating the particle weights; optimizing the particle pose using the harmony search algorithm; further optimizing using the niche algorithm; calculating and normalizing the optimized particle weights; calculating the number of effective particles, and performing adaptive optimization combination resampling based on the deviation-corrected EWA optimization algorithm; updating the map information of the particles based on the particle motion trajectory to establish an actual map. The particle filter method provided by the present invention can obtain more accurate filtering estimates while using fewer particles; the resampling improvement strategy solves the problem of particle impoverishment caused by traditional resampling while ensuring particle diversity. Improvements in multiple aspects improve the efficiency and accuracy of localization and mapping.

The invention provides a steady-state quantum turbulence generation method and a steady-state quantum turbulence generation system capable of guaranteeing particle number conservation. The method comprises the following steps: constructing an evolution model of the quantum fluid system, wherein the evolution model is obtained by introducing an external driving item and a particle number conservation dissipation item based on a Gross-Pitaevskii equation; the external driving item is an additional external potential of spatio-temporal variation and is used for injecting energy into the system; the particle number conservation dissipation item depends on the time change rate of the particle number density and is used for dissipating the energy of the system; the external driving item and the particle number conservation dissipation item are configured to keep the total particle number conservation of the system; and performing time evolution on the quantum fluid system based on the evolution model until the system reaches a steady-state quantum turbulence state of total kinetic energy dynamic balance. According to the method, the loss of chemical potential compensation particles does not need to be adjusted, quantum turbulence structures of different scales can be stably generated and regulated, and the physical self-consistency and long-term stability of the quantum fluid evolution process are guaranteed.