43 results about "Calculation methods" patented technology

The method is capable of calculating shortest path to meet need of protecting SDH/SONET. The method includes following steps. Collecting attributive information of links connected to each node directly obtains serial numbers of protection entities that each link belongs to. According to standard flood of protocol, collected information is diffused to other nodes. Based on serial numbers of protection entities that each link belongs to, each node is recombined so as to form topological structure of each protection entity in whole network and attributive information of relevant links. Calculation of constraint paths in transmission network is carried out. Based on proper protection types of transmission network, the invention calculates shortest path to meet constraint condition. Since protection topology is calculated in advance, thus the invention reduces numbers of repeated calculation effectively so as to calculate constrained path in real time.

The invention relates to a dynamic password verification method, which is characterized in that the password input by the user includes static and dynamic characters, and the user agrees in advance on the calculation method of the dynamic password when creating or setting an account, and the calculation method uses variable data such as date, after Simply change the dynamic password used for verification; when the password needs to be verified, the user enters the static password and the dynamic password formed by simple calculation on the terminal device or the client software interface, or uses the dynamic password to encrypt the string obtained by encrypting the static password and submits it for verification ; The terminal device or client software decomposes the obtained input into a static password and a dynamic password string or uses a dynamic password to decrypt the input string to obtain a static password; the server compares the received encrypted static password with the pre-saved user password, such as If necessary, compare the received dynamic password with the string obtained according to the same algorithm to determine whether it can pass the verification.

The invention relates to a prediction method for fractured oil-gas reservoirs based on three-dimensional seismic data and a fractional-frequency ant body technology. The method comprises the following steps: transforming the seismic data to a frequency domain to obtain the scope of an effective seismic frequency band; starting from the minimum value of the effective seismic frequency band to increase at intervals to obtain a fractional-frequency data series; computing the phase spectrum of each sampling point to obtain a discrete fractional-frequency phase data volume; adopting an ant body algorithm to generate a series of fractional-frequency ant body data; conducting horizon picking on an objective reservoir to obtain the time structure data of each time point location of seismic reflected waves; respectively extracting numerical values corresponding to an objective interval from a series of fractional-frequency ant body data to obtain a group of fractured reservoir detection results of different frequency bands of the objective interval. The computing method is simple and convenient and can be used for detecting smaller scale of faults and fracture zones, the precision is higher, and the geological effect is obvious.

The invention provides a continuous calculation method of advertisement effectiveness optimization and a device. According to the method, a large number of user information excavated in a video website is fully utilized, the information comprises population basic information and preferences, and combined with the industry description of a material, the data are integrated and cleaned; then the characteristic extraction and formatting are carried out, and the characteristic for model training is obtained; through obtaining characteristic data, the tree model training is carried out to obtain an optimization model and carry out validation, and the subsequent test data and a click rate threshold are compared to carry out advertising delivery judgment. Practices prove that the various indicators of new advertisement delivery are greatly improved, advertisements are more precisely delivered to users, and the click rate is raised.

The invention relates to a method for screening a metal organic framework catalytic material based on high-throughput calculation. Firstly, aiming at the MOFs series to-be-studied and a specific catalytic reaction system, a high-flux parallel calculation method is used to respectively calculate the adsorption energy, the Gibbs function variation and the activation energy series of performance parameters of a catalytic reaction system, and the best-performance MOFs material is selected; secondly, according to the high-flux calculation results, the optimal MOFs material is synthesized and subjected to performance verification by symptom, and further fed back to the corresponding database, and a high-throughput calculation mode is gradually optimized and improved. The method adopts a high-throughput parallel calculating method, which effectively shortens the calculation time. The theoretical calculation is used to guide the synthesis and preparation of the material, which makes the synthesis and preparation of materials have guiding properties, reduces the research and development costs, and shortens the development cycle. Through an interactive mode of real-time feedback of the experimental data to the theoretical calculation, the performance and accuracy of theoretical calculation can be continuously improved and optimized, and the method has good practical value.

The invention discloses a method for detecting a type of a medium material of a part for receiving terminal equipment. The method comprises the following steps of A, by an acceleration sensor built in terminal equipment, acquiring a sampling value of an accelerated speed produced by terminal equipment vibration, carrying out spectral analysis of the sampling value of the accelerated speed, and determining hardness of a medium material of a part for receiving the terminal equipment according to the analysis result, and B, through a sound sensor built in the terminal equipment, carrying out sound spectrogram analysis, and distinguishing the medium materials having similar hardness according to the analysis result. The method can realize spectral analysis of the accelerated speed sampling value and the voice frequency sampling value only by the terminal equipment, can accurately determine the type of a medium material of the part for receiving the terminal equipment, adopts a simple calculation method, produces an accurate determination result, and has a strong practical meaning and a popularization value.

The invention provides a side slope wide-range distance measuring instrument and a side slope deformation real-time monitoring method. The side slope wide-range distance measuring instrument comprisesa guide rod, a guide shell arranged at the outer side of the guide rod and a guide base arranged below the guide shell; the outer wall of the guide rod is connected with the inner wall of the guide shell through a bearing; a first angle measuring device for measuring the rotary angle of the guide rod is arranged in the guide shell; a traction rope winds the outer wall of the guide rod, one end ofthe traction rope is fixed to the guide rod, and the other end of the traction rope penetrates through the guide shell; the guide base is connected with the guide shell through the bearing; the distance measuring instrument further comprises a second angle measuring device for measuring the rotary angle of the guide shell. A calculation method for distance change between every two adjacent distance measuring instruments and position coordinates of the distance measuring instruments after side slope deformation is put forward. By means of the side slope wide-range distance measuring instrument, rock and earth mass can be monitored in real time, and sliding influence area range and stratum moving conditions are determined.

The invention discloses a harmonic power flow calculation method containing a VSC (Voltage Source Converter). Firstly, the fundamental wave power flow is calculated to obtain the fundamental wave voltage of each node, and the modulation ratio of the VSC is obtained; secondly, three pieces of input data, namely, the DC voltage, the modulation ratio and the carrier frequency are substituted into theharmonic model formula of the VSC to obtain the content of each harmonic in the AC side voltage of the VSC, and the VSC is regarded as a harmonic voltage source approximately; and thirdly, in order to realize an interface between a VSC harmonic voltage source model and the harmonic power flow, the VSC and the AC side transformer thereof are equivalent to a harmonic current source with internal impedance based on the Norton's equivalence theorem to form a harmonic admittance matrix, and the harmonic power flow is calculated by harmonic current injection.

The invention discloses a track data-based trunk line coordination control optimization method, and relates to the technical field of trunk line coordination control. The method comprises the following steps of building a traffic characteristic parameter calculation model based on the track data in advance, including obtaining the parking frequency and the periodic real-time queuing length of a vehicle in a sampling interval; building an intersection signal coordination control index model, obtaining the arrival distribution of downstream vehicles, and obtaining the maximum green light arrival rate of a road section under the current traffic flow condition; and performing a signal coordination phase difference optimization model for coordinating the minimum traffic flow total delay. According to the invention, the vehicle track data with low permeability and low sampling frequency is realized, a traffic characteristic parameter calculation method is established, and on the basis, an intersection signal coordination control index model and the signal coordination phase difference optimization model are provided, so that two key problems related to coordination control research are solved.

The invention discloses a maximum power output control method suitable for controlling a variable speed wind turbine group through concentrated variable flow. According to n wind turbines which are controlled by the same converter in a concentrated mode and are constant in rotating speed and different in input air speeds, the concentrated converter and overall wind turbine propeller pitch variation mechanisms are controlled in a coordinated mode, and therefore maximum power output of the wind turbine group is achieved. A control objective of the concentrated converter is that the speed of the wind turbine with the higher wind speed approaches to the optimal rotating speed as much as possible and a control objective of the propeller pitch variation mechanisms is that the highest wind energy utilization rate of the wind turbine with the lower wind speed is obtained at the unified rotating speed of the wind turbine group. The optimal calculation method is adopted and the frequency conversion alternating current bus frequency and the overall wind turbine propeller pitch angle which correspond to the maximized output power of the wind turbine group are worked out. The maximum power output control method is suitable for the variable speed wind turbine group controlled by an AC-DC converter in a high-voltage direct current power transmission system and an AC-AC frequency converter in a frequency division power transmission system.

Disclosed are a method and a system of calculating a sales commission using a transformation coefficient in on-line by reflecting sales of members receiving sales commissions and new sales of sub-members, and a record medium thereof. Members receive sales commissions based on members' own sales, so that old sub-members as well as new members actively sell commodities. The property of the tree to which the members belong is more increased, so that the members have reliability and affection for a company. The revenue of the members is more increased, and a company attempts to increase sales and members. A company determines sales commissions paid to members at a constant commission payment rate for the sales of the members without being affected by the enlargement of an organization due to the increase of the members and the amount of sales.

The invention discloses a charging demand calculation method for an electric automobile. The method includes the following steps: 1) describing a changing condition of a state of charge of a power battery of the electric automobile during a one-day trip process of a user through a Markov chain; 2) considering the influence of a time-consuming coefficient corresponding to a traffic index on the driving time and the probability of the trip time of the electric automobile at each time period corresponding to each of destinations during the trip process of the user, and determining a distributioncondition of the charging demand at each time of one day; and 3) obtaining time and spatial distribution of the charging demand of the electric automobile by using a Monte Carlo simulation method. Themethod considers the influence of the traffic time-consuming coefficient on the driving process of the electric automobile, and can more accurately reflect the spatial-temporal distribution of the charging demand.

The invention discloses a direct current instruction calculation method for active secondary pulsation suppression under power grid unbalance. The method is characterized by including: using a symmetrical component method to perform positive and negative sequence separation on three-phase unbalanced voltage on a grid side of a PWM (pulse width modulation) rectifier; calculating to acquire negative sequence instruction current under a three-phase stationary coordinate system; adding the negative sequence instruction current with original positive sequence instruction current to acquire actual instruction current. By the method, secondary pulsation of active power and voltage on a direct-current side of the rectifier when a power grid has unbalanced voltage is effectively suppressed, instruction current calculation is simplified, and response speed and control effect of a system are improved.

The present invention discloses a free spanning submarine pipeline information calculation method based on ROV survey data. The method comprises the steps of determining main factors influencing a free spanning submarine pipeline, establishing a pipeline structure finite element model, establishing a pipeline and seabed contact interactional model, inverting the ROV survey data, and calculating displacement, stress and strain distribution information of the pipeline under the current operating condition. Current accurate information of the free spanning submarine pipeline is obtained, free spanning state change caused by operation condition change and the influence on pipeline safety are eliminated, and scientificity of free spanning submarine pipeline safety evaluation is further improved.

The invention discloses a calculation method for asphalt and aggregate stripping rates of an asphalt pavement. The method comprises the following steps: 1) a water boiling method is used for treatingan aggregate wrapped with asphalt, and the asphalt stripping rate of the aggregate wrapped with the asphalt after water boiling is calculated; 2) a water damage sensitivity tester is used for simulating a real water damage mode of the pavement, the asphalt stripping rate of the aggregate wrapped with the asphalt after dynamic water damage is calculated, the stripping rate after the dynamic water damage treatment and the stripping rate after the water boiling are fitted, and a relation between the asphalt stripping rates after the dynamic water damage and the water boiling damage is obtained; and 3) the actual damage life of the asphalt pavement is calculated by utilizing the temperature, the pressure and the frequency of the water damage sensitivity tester, and the asphalt and aggregate stripping rates of the actual pavement in different years are calculated. The asphalt and aggregate stripping rates of the asphalt concrete pavement in the different years are calculated through the water boiling method; the quantitative calculation is carried out; and the operation is convenient, the cost is low, the reliability of a test result is high, and the engineering practice of the pavementis met.

The embodiment of the invention discloses a partial frequency point calculating method and device based on a FFT library function. The method comprises the steps that a target frequency point sequenceis decomposed, and two subsequences are obtained; the subsequences are subjected to FFT calculation, and FFT results are obtained; finally, according to the frequency points required by a user, the FFT results are calculated, and the FFT results of the partial frequency points required by the user are obtained. In this way, the memory space of a processor is saved, the hardware performance of theprocessor can be given full play to, and a short running time can be obtained.

The invention discloses a vehicle load dynamic real-time calculation method, which comprises the following steps of: firstly, acquiring vehicle power system data in real time through a sensor, and establishing a vehicle dynamic theoretical model; introducing a deep neural network model, reducing the influence of sensor noise and environmental noise by using big data, and filtering interference factors to obtain a neural network model; wherein the big data comprises full-life-cycle time series data of a plurality of automobiles; training a neural network model at the cloud through a GPU cluster, and realizing edge deployment after test optimization; and finally, acquiring sensor data in real time through a vehicle-mounted module, synchronously inputting the sensor data into the trained neural network model, and calculating dynamic vehicle load data. Real-time monitoring of commercial vehicle load data is achieved, the overload phenomenon can be effectively eradicated, good social benefits are achieved. A pure software scheme is adopted, and compared with a traditional fixed-point inspection station and a refitted vehicle scheme, the invention has overwhelming advantages.

The invention provides a cross-language fusion calculation method, system and terminal based on an omiga engine. The cross-language fusion calculation method comprise the following steps: acquiring input parameter information to form a function configuration file required by a target function; calling one or more logic sub-functions respectively corresponding to execution languages, and generating a logic statement which corresponds to the target function and can be executed by the omiga engine according to the function configuration file; and analyzing the logic statement, and executing logic calculation by the omiga engine in one or more execution languages according to an analysis result to obtain an output result corresponding to the target function. According to the method, computer languages of various technologies of a bottom layer can be fused, one or more capabilities of the bottom layer can be selectively applied according to project requirements, production and management output required data, a large number of reusable data processing rules can be accumulated while the project requirements are met, and the production efficiency of subsequent data is improved. Meanwhile, a plurality of application products can be connected in a butt joint mode, end-to-end real-time updating is achieved, and labor cost is reduced.

The invention discloses a numerical calculation method for a critical flow release process of a high-pressure gas container with a crevasse, which comprises the following steps of: when the container has the crevasse and the working medium in the container leaks, calculating the state of the working medium in the container at any moment according to the geometric dimension of the crevasse and the initial state of the working medium in the container when the leakage occurs; effective theoretical calculation reference data is provided for risk quantitative evaluation after the high-pressure container is subjected to crevasse leakage. A gas-liquid two-phase critical flow leakage physical mechanism is fully considered; the gas-liquid two-phase critical flow release mechanism of the pressure vessel is comprehensively considered by fully considering the inter-phase action and inter-phase transfer, such as the processes of wall surface heat transfer, friction effect, inter-phase heat and mass transfer (condensation) and the like, and the discharge and crevasse critical flow leakage of the uncoupled pressure vessel.

The invention discloses an actual water head-based primary frequency modulation calculation method of a hydropower generating unit. A unit opening output factor is introduced under an opening mode, afrequency/power characteristic relation is built under the opening mode, a ratio between active power change quantity of a certain water head and rated power of the generating unit is introduced intoa PID calculation program of a hydropower generating unit control system, the active power regulation accuracy of primary frequency modulation can be improved, the primary frequency modulation qualityunder the opening mode is improved, the power grid frequency control quality is improved, and the problem that active power action quantity is not correlated to the frequency due to influence of thewater head on primary frequency modulation of the hydropower generating unit in the prior art under the opening mode is solved.

The invention discloses a space-ground combined orbit calculation method for navigation constellation measurement and control management. The method comprises: designing a space foundation whole network orbit calculation process for avoiding normal equation rank depletion, using a long-term forecast ephemeris as virtual observation for constraint, and combining traditional foundation S-band measurement data and a Ka inter-satellite link weighted fusion algorithm to calculate the space-ground combined orbit of the navigation constellation measurement and control management; and comprehensivelyprocessing traditional ground-based S-band tracking data and inter-satellite link bidirectional distance measurement to obtain a precise ephemeris product for supporting navigation satellite measurement and control management and inter-satellite link management.

The invention relates to a multi-stage centrifugal pump axial force calculation method considering wear ring leakage, which solves the technical problem that the existing multi-stage centrifugal pump axial force calculation method cannot accurately calculate the axial force, and comprises the following steps of: calculating the axial force according to parameters such as the stage number N, the flow Q, the single-stage lift H, the rotating speed n, the impeller inlet diameter D1, the wear ring diameter Dm and the hub diameter Dh of a sectional multi-stage centrifugal pump; and the axial force FA borne by the pump is calculated by considering the wear ring leakage factor. The method is widely applied to the field of multi-stage centrifugal pump axial force calculation.

The invention discloses a frozen soil region natural gas hydrate resource evaluation method. The method comprises the following steps: S1, collecting frozen soil region information of a to-be-evaluated frozen soil region, and determining a frozen soil region exploration level according to a preset index; s2, determining an algorithm of a natural gas hydrate resource evaluation index according to the exploration level of the permafrost region, and calculating the natural gas hydrate resource evaluation index; and S3, pushing the frozen soil region information and the natural gas hydrate resource evaluation indexes to a three-dimensional GIS live-action map for live-action display, and updating the live-action display by taking the natural gas hydrate resource evaluation indexes as guidance. According to the method, the permafrost region is subjected to survey grading, corresponding evaluation calculation methods are adopted for different survey grades, and final evaluation indexes are pushed to the three-dimensional GIS live-action map constructed by the terrain of the permafrost region for live-action display, so that the evaluation result can be intuitively displayed to a user while large-range permafrost region evaluation can be realized, and the permafrost region evaluation efficiency is improved. And the permafrost region evaluation intuition and expansibility are improved.