41results about How to "Avoid calculation errors" patented technology

The invention discloses a gas reservoir carbon dioxide burying amount calculation method considering pore expansion and component effects, and belongs to the technical field of carbon dioxide sequestration. The method comprehensively considers a pore expansion effect caused by CO2 injection, and establishes a pore expansion model by introducing a porosity pressure sensitivity coefficient; the pore expansion effect caused by the increase of the fluid pressure is effectively represented, so that the CO2 burying potential of the gas reservoir is more accurately evaluated. And secondly, a Peng-Robinson state equation is adopted, the thermodynamic interaction between CO2 and residual CH4 is considered, and the property change of the mixed gas is accurately represented. According to the method, the defect that a CO2-CH4 system is simplified into single-component gas when gas properties are calculated in an existing method is overcome, the calculation error of the CO2 structure burying amount caused by simplification is avoided, and meanwhile, the calculation error of the dissolved CO2 burying amount is reduced due to the fact that CO2 partial pressure calculation is more accurate.

The invention discloses a GPGPU thread block synchronization method and device based on a thread lock and a medium, and relates to the technical field of electric digital data processing. The method comprises the following steps: a thread block scheduling module allocates thread blocks for each stream multiprocessor and calculates a thread start ID (Identity) to maintain a corresponding thread lock table; analyzing whether a dependency relationship exists between the memory access request and a thread in the currently occupied thread block or not under the condition that the memory access requirement exists, and if yes, adding the memory access request with the dependency relationship to a lock queue; querying a thread lock state of a thread having a dependency relationship with the memory access request in a corresponding thread lock table so as to add the thread lock state to an entry state corresponding to the lock queue; and dequeuing the memory access request from the lock queue under the condition that the entry states of all the threads with the entries in the lock queue and the thread bundle having the dependency relationship are unlocked, and performing memory access according to the memory access request to realize synchronization of GPGPU thread blocks.

The invention discloses a method for improving the solving speed of a rotating sphere non-singularity electromagnetic scattering field, and belongs to the field of electromagnetic engineering. Aiming at the electromagnetic scattering problem of a rotating structural body in the field of practical engineering, the invention provides a method for improving the non-singularity electromagnetic scattering field solving speed of a rotating body, and effective analysis of the rotating body is realized based on a moment method. A rotating structure body has important application value in electromagnetic radiation and scattering research due to geometric symmetry, but under the condition of long wavelength, a traditional surface integration method often has the problem of singularity, and numerical stability and precision are affected. Therefore, a method for effectively eliminating singular integrality and converting a dense matrix needing to be solved into a sparse matrix is designed, the calculation efficiency is remarkably improved, and the memory consumption is reduced. A non-singularity surface integral equation is obtained through derivation, simulation and numerical simulation are carried out through a specific electromagnetic rotating body device model, an efficient numerical solution is provided for the electromagnetic scattering problem, and the method has wide engineering application prospects.

The invention relates to the technical field of electric power system operation and control, in particular to an electric vehicle and power distribution network interactive aggregation adjustable capability accurate evaluation method, which comprises the following steps: firstly, based on a similar energy storage model, establishing a feasible region model of a single electric vehicle; secondly, preprocessing the data of the electric vehicle; next, based on the preprocessed data and the feasible region model of the single electric vehicle, establishing a polyhedron-based aggregation model; and finally, considering physical characteristics and combining with a polyhedron-based aggregation model to establish an aggregation feasible region model of the electric vehicle. According to the electric vehicle and power distribution network interactive aggregation adjustable capability accurate evaluation method provided by the invention, large-scale electric vehicles can be effectively aggregated to participate in energy and standby markets.

The present invention provides a detection method and device for the placement state of wafers in a wafer box, which is applied to the detection of wafer boxes. The detection method includes: obtaining the standard value of the thickness and the standard value of the angle of the wafer; using a laser and a camera to scan the wafer box to obtain the three-dimensional morphology of the wafer box; according to the three-dimensional morphology, using a thickness calculation algorithm and an angle calculation algorithm to calculate the thickness and angle of each wafer in the wafer box; wherein the thickness calculation algorithm processes the data of the three-dimensional morphology through a point cloud downsampling method and a point cloud clustering method; comparing the thickness and angle of each wafer in the wafer box with the standard value of the thickness and the standard value of the angle to determine whether there are duplicate wafers, oblique wafers, and missing wafers in the wafer box. The present invention solves the technical problem that the traditional Mapping operation needs to use a ranging sensor to scan the inside of the wafer box point by point to determine the wafer position, resulting in a long scanning time and affecting production efficiency.

The invention discloses a driving all-in-one machine and an output shaft multi-turn absolute position detection method thereof, and realizes accurate quantization of a multi-stage coding system state by obtaining a detection value of each stage of coding shaft and decomposing the detection value into a turn value and an in-turn remainder value based on a transmission ratio. A mapping relation from an upper first-level coding axis to a lower first-level coding axis is established according to the transmission ratio, and a mapping value is obtained after dimensions are unified, so that a comparable basis of upper-level coding data and lower-level coding data is established. By obtaining the difference value between the mapping value and the corresponding inner remainder value of the lower first-level coding shaft ring and comparing the difference value with the half-ring threshold value, the phenomenon of zero crossing point asynchronization caused by the gear clearance can be accurately identified. Dynamic compensation is carried out on the number of turns of the next first-level coding shaft based on a difference value comparison result, and reading deviation caused by the mechanical back clearance is effectively corrected. Finally, the multi-turn absolute position of the output shaft is synthesized based on the compensated number of turns of the coding shafts, so that the continuity and accuracy of position calculation are ensured, and position calculation errors caused by gear gaps are avoided.

The application discloses a Brillouin sensing device based on optical parallel differential pulse pairs and a working method, and belongs to the technical field of optical fiber sensing. In view of the problem that the prior art is difficult to consider high resolution, high precision and fast measurement, the device used by the application comprises: an optical source module, which is used to generate an optical carrier; a first optical path module, which is connected with the optical source module and is used to receive the optical carrier and generate optical parallel differential pulse pairs containing anti-Stokes and Stokes components and having different pulse lengths as pump light through double-frequency double-sideband pulse modulation; a second optical path module, which is connected with the optical source module and is used to generate double-sideband probe light; and a sensing optical fiber, which is connected with the first and second optical path modules respectively and is used to receive the pump light and the probe light and directly complete signal differentiation in the optical domain through stimulated Brillouin scattering. Thus, high resolution, high precision and fast measurement are synergistically optimized, the gain / loss mechanism can be flexibly switched, and the scene adaptability is enhanced.

The utility model belongs to the technical field of evacuation platform measurement, and provides an evacuation platform inclined strut measuring tool which comprises a horizontal ruler, a radian ruler, a telescopic mechanism and an arc-shaped positioning plate. The horizontal ruler is fixedly connected with the arc-shaped positioning plate, a sliding groove is formed in the bottom end of the horizontal ruler, a sliding block is arranged in the sliding groove in a sliding fit mode, the sliding block is fixedly connected with the radian ruler, one end of the telescopic mechanism is hinged to the radian ruler, and the other end of the telescopic mechanism is hinged to the arc-shaped positioning plate. The telescopic mechanism is provided with a graduated scale, and the arc-shaped positioning plate is used for being attached to the inner wall of a tunnel. The tool adopts a handheld design, the arc-shaped positioning plate leans against the arc surface of a tunnel, the angle and the length of the inclined strut can be quickly obtained by setting the length of the steel beam and then observing the scale data on the surface of the measuring scale, the data accuracy of the inclined strut of each platform is ensured, the calculation error is avoided, the accurate ordering production of the inclined strut is realized, and the material waste is avoided. Adjustment is not needed in field installation, and construction efficiency is improved.

This invention relates to the field of data processing technology and discloses a method, apparatus, and equipment for monitoring surface deformation based on parameter search interval optimization. The method, based on the location information of multiple buildings in a geographic coordinate system and multiple SAR images, determines at least one building-related region and at least one non-building region within a target area. It then determines a first residual elevation search interval for the building-related region based on the roof elevation value of at least one target building within the building-related region; determines a second residual elevation search interval for the non-building region; and performs temporal InSAR phase calculation based on the first residual elevation search interval, the second residual elevation search interval, a preset deformation rate search interval, and multiple SAR images to obtain the surface deformation rate field and residual elevation field of the target area. This significantly improves data processing efficiency while ensuring the accuracy of the temporal InSAR phase calculation and obtaining accurate surface deformation rate and elevation fields.

The invention discloses a method for obtaining the thickness and refractive index of a film, a test system, a storage medium and application. The method for obtaining the thickness and the refractive index of the thin film comprises the following steps: obtaining an intermediate frequency signal carrying transmission phase information by using two groups of nonlinear transmission line terahertz frequency comb generators and a broadband mixer, and obtaining an actually measured phase curve based on the intermediate frequency signal; constructing an equivalent multi-optical-path interference model of the thin film, performing coherent superposition on multiple reflection components of a measured wave signal in the thin film in a complex field to obtain a complex phase of a total transmission field, and obtaining a phase-frequency change spectrum based on the complex phase as a model phase curve; and an error function of the model phase curve and the actually measured phase curve is constructed, and a parameter combination enabling the error function to take the minimum value is solved by scanning the parameter combination of the refractive index n and the thickness d of the thin film. According to the method, thermal drift or time drift of the phase is avoided, and then calculation errors caused by phase jump are avoided.

The present invention discloses a battery pack information acquisition system based on terminal control; the system comprises a main control module, the main control module is electrically connected to a data processing module, the data processing module is electrically connected to a BMS management system and a communication module, the BMS management system is electrically connected to a battery module, the main control module is electrically connected to an electric power device, and the communication module is communicatively connected to a remote terminal module. The present invention manages and controls the battery module through the BMS management system, and then calculates and processes the data information through the data processing module, calculates and processes the power supply mode of the battery module through a greedy algorithm to achieve a balanced and stable power supply mode, and evaluates the power supply mode through a neural network algorithm to prevent calculation errors. Finally, when errors occur in the data information, the data information is corrected and eliminated to improve the accuracy and validity of the data.

This invention provides a method and system for evaluating the consistency of multiple / subsequent vessel segmentation results. It involves reading the original data of a vessel dataset and multiple / subsequent vessel segmentation result matrices, then randomly selecting two vessel segmentation result matrices to calculate their union, intersection, and symmetric difference. Any point in the symmetric difference is selected, and iterative growth is performed using a convolution kernel to simulate a path diffusion process. Under the constraints of the union range and a given geodesic distance, a spherical set is obtained. The intersection of this spherical set with the union of the vessel segmentation result matrices and the intersection of this intersection with the two / subsequent vessel segmentation result matrices are calculated. The above calculations and statistical analysis are performed on each point to obtain statistical results, which are then mapped back to the original data and the two / subsequent vessel segmentation result matrices. This yields the statistical results for any two / subsequent vessel segmentation result matrices, and the visualized results are output. This invention can be used to measure the performance of vessel segmentation algorithms or compare their differences, accelerating the development and verification process of vessel segmentation algorithms.

The invention discloses an abnormal chip positioning method and device in multi-chip transmission, a terminal and a storage medium, and relates to the technical field of chip detection. The method comprises the following steps: carrying out 3D-FFT calculation detection on a multi-chip machine for multiple times; and determining a plurality of transmission problem links according to the transmission error data during the subsequent 3D-FFT calculation detection for multiple times, and recording chips at cross points of the plurality of transmission problem links as abnormal chips. The invention provides an abnormal chip positioning method and device in multi-chip transmission, a terminal and a storage medium, and aims at a specific structure of a multi-chip machine system, 3D-FFT calculation is adopted to screen a defective chip, and the defective chip in a multi-chip machine can be quickly positioned, so that a designer can replace the defective chip in time, and the working efficiency of the designer is improved. Subsequent calculation errors can be avoided, and the design efficiency is improved.

This invention belongs to the field of tire damage resistance testing technology and discloses a method for processing tire compression and cutting force fitting data. The steps are as follows: the tire to be tested is fixed on the loading device and calibrated; a vertical compression force is applied at a constant speed, and force and displacement data from the loading start point to the cord breakage are collected. The fracture node is determined by the sudden change in the force sensor signal; after preprocessing the data, a force-displacement curve is plotted, and linear and rapid growth regions are divided; the breaking energy is obtained by piecewise fitting and integration, thereby evaluating the tire's compression and cutting resistance. This invention adopts a piecewise fitting method for the tire compression and cutting force-displacement curve, and selects an appropriate function model for different stress deformation stages such as elastic deformation and plastic failure, avoiding the calculation error of a single fitting model. It can accurately calculate the tire breaking energy, realize the quantitative evaluation of compression and cutting resistance, and fill the industry gap of no dedicated quantitative evaluation method in the existing technology.

The present invention discloses a satellite atmospheric perturbation measurement method and device. The method includes: obtaining the satellite coordinates, satellite speed and current time of the satellite based on Beidou positioning and timing functions; obtaining the satellite measurement attitude information and solar sailboard rotation angle information of the satellite; determining the total perturbation of the satellite in the inertial coordinate system according to the satellite coordinates, satellite speed and current time; determining the non-spherical gravitational perturbation corresponding to the satellite according to the satellite position and the third-party gravitational field model; determining the daily gravitational perturbation and lunar gravitational perturbation corresponding to the satellite according to the solar coordinates and lunar coordinates at the current time; determining the solar light pressure perturbation corresponding to the satellite according to the current time, satellite coordinates, solar coordinates, satellite measurement attitude information and solar sailboard rotation angle information; determining the satellite atmospheric perturbation of the satellite according to the total perturbation, non-spherical gravitational perturbation, daily gravitational perturbation, lunar gravitational perturbation and solar light pressure perturbation. The present invention can improve the calculation accuracy of the atmospheric perturbation.

The application provides a pixel information determination method and device, AR glasses and a storage medium, and relates to the technical field of computer vision. The method comprises the following steps: collecting a real-time scanning image in a current visual field range; determining a pixel range of a target object in the real-time scanning image and an included angle between a line of sight direction of the AR glasses and a vertical direction; converting the real-time scanning image into a target image based on the included angle, and determining a target region in the target image; the target image is a top view corresponding to the real-time scanning image; the target region comprises the target object; determining the number of each pixel in the target region within the pixel range and the number of each pixel in the target region. The application can improve the real-time performance and accuracy of pixel information determination.

The invention discloses a blocking flow shop group scheduling rapid evaluation method, relates to the technical field of shop scheduling, and constructs an inter-group and intra-group rapid evaluation method based on hierarchy according to the problem characteristics of blocking scheduling by taking a distributed blocking flow shop with starting time as an example. Comprising the steps that 1, the starting time # imgabs3 #, the completion time # imgabs4 # and the leaving time # imgabs5 # of a workpiece # imgabs1 # in a group # imgabs0 # on a machine # imgabs2 # are calculated; 2, the layer # imgabs8 # of the workpiece # imgabs7 # in the group # imgabs6 # is calculated; 3, the layer # imgabs11 # of the workpiece # imgabs10 # in the group # imgabs9 # is updated, and the offset # imgabs12 # is calculated; 4, the maximum completion time is obtained; wherein the number of the imgabs is 13 #, the number of the imgabs is 14 #, and the number of the imgabs is 15 #. Aiming at the problem of group scheduling of the blocked flow shop, the invention provides a method for quickly evaluating the maximum completion time target value, so that the calculation time is effectively shortened, repeated evaluation is avoided, the calculation cost is reduced, and meanwhile, the scheduling efficiency is remarkably improved.

The invention discloses a simultaneous direct inversion method, system and equipment based on a fluid sensitive factor and a brittleness index, and a storage medium, and the method comprises the steps: obtaining an expression of a stratum reflection coefficient, obtaining an approximate expression of a first seismic record S (theta) according to the expression of the stratum reflection coefficient, simplifying the approximate expression of the first seismic record S (theta), obtaining a forward equation, and obtaining a forward inversion result of the first seismic record S (theta); and based on the forward equation, obtaining inversion results of the fluid sensitive factor F, the brittleness index BI and the density rho through an inversion algorithm. According to the method, high-precision parameters capable of reflecting reservoir fluid properties and brittleness characteristics can be obtained on the basis of a simultaneous direct inversion method of the fluid sensitive factors and the brittleness indexes, fluid identification and brittleness evaluation results of a unified scale can be provided, and a reference can be provided for reservoir fluid identification and reservoir transformation potential; and support is provided for depicting oil and gas reservoir space distribution and developing dessert areas.

The invention provides a model optimization method and computing equipment, which are used for multi-engine edge computing equipment, and the method comprises the following steps: loading an original model structure of a computing model; splitting the original model structure to obtain a multi-engine model structure; inserting a synchronization operator into the multi-engine model structure to obtain a multi-engine synchronization model; and loading the multi-engine synchronization model to an edge computing device to execute model operation, the edge computing device comprising a plurality of computing engines, and the plurality of computing engines synchronously executing the multi-engine synchronization model based on the synchronization operator. According to the technical scheme, the data processing capacity of the multi-engine model can be optimized, the model execution efficiency is improved, and the complexity of the model development process is reduced.

The invention provides a subjective and objective combined empowerment calculator, which belongs to the technical field of decision evaluation, and is characterized in that efficient and accurate empowerment calculation and intuitive operation experience are provided for a user by combining a man-machine interaction window of a front panel and a background program language. The calculator is designed on the basis of a Matlab graphical user interface, is completely compatible with Matlab7.0 and above versions, and ensures smooth calculation and graphical display. A user can input a weight in a vector form through a front panel, and the operation is simpler and more convenient through interface guidance. Compared with a traditional mode, the calculator has the advantages that the data input and processing efficiency is greatly improved, the risk of wrong input is reduced, and a non-professional person can easily complete a complex weighting calculation task. According to the design, on the basis of the prior art, the speed and accuracy of data analysis are remarkably improved, and the requirement for modern rapid data processing is met.

The application discloses a kind of solid rotor induction motor rotor parameter correction calculation methods, suitable for various capacity smooth solid rotor induction motor.First, according to the characteristics of solid rotor induction motor, the correction coefficient of axial end effect, skin effect, saturation effect and hysteresis effect is given.Then, based on the two-dimensional electromagnetic field theory, the analytical relationship of excitation branch parameters is obtained.Finally, according to the electromagnetic characteristics of solid rotor ferromagnetic material, the analytical relationship of rotor parameters is given respectively, and the method provides a new theoretical method for the design of solid rotor induction motor.

The invention discloses an anti-seepage wall defect evaluation method based on near-field dynamics, and relates to the technical field of anti-seepage engineering safety evaluation. The method comprises the following steps: firstly, establishing a defect-containing diaphragm wall structure model, and defining a mechanical equation, defect boundary conditions and load constraints; dispersing the structure into material points, constructing a key connection relation and deducing a micro-modulus coefficient; then deducing a near-field dynamic power control equation, and setting a key fracture criterion and a damage evolution model; introducing a proportional boundary shape function, converting the power control equation into a matrix form balance equation, and solving a dynamic response; and calculating a damage value, and evaluating the safety performance and the remaining service life of the diaphragm wall in combination with the safety index. The advantages of the near-field dynamics and the proportional boundary finite element method are fused, the evaluation precision and efficiency are considered, and reliable technical support is provided for safety guarantee of the diaphragm wall.

The invention discloses a relay protection recording data extraction and fault analysis method and system. The method comprises the following steps: extracting recording data of relay protection devices of different models on site; performing format consistency conversion to obtain a wave recording file in a general format; identifying analog quantity channel information and switching quantity channel information, and confirming the integrity of the channel information and the consistency of file formats; performing character fuzzy matching on each channel name by adopting a traversal method, and automatically identifying loop information contained in the file; performing analog quantity channel fault judgment according to the analog quantity channel information; performing switching value channel fault judgment according to the switching value channel information; comprehensively judging the fault type; and generating and displaying a fault analysis report according to the comprehensively judged fault type. According to the method, fault data of different types of relay protection devices are acquired and automatically analyzed on site, fault reasons are quickly positioned, the fault change process is deeply analyzed, and operation and maintenance operators on duty can be helped to carry out fault judgment and fault disposal.

The application discloses a power system dynamic observability calculation method based on a data-driven Koopman operator, belongs to the technical field of power system dynamics and observability analysis, and comprises the following steps: establishing a power system dynamic observability analysis model based on system state variables and measured variables; converting the established dynamic state observability model into an augmented Koopman canonical coordinate system; constructing an observation matrix of the system in the augmented Koopman canonical coordinate system; and calculating the dynamic observability degree of the power system by using a matrix index in the Koopman space. The method of the application uses the data-driven Koopman operator, overcomes the inaccuracy of the model while considering the nonlinear characteristics of the power system dynamic model, effectively solves the low-precision problem of the traditional linear method and the problem of excessive calculation amount of the nonlinear method, and can realize efficient and rapid analysis and calculation of the dynamic observability of the power system.

The present application discloses a method for calculating the impedance of a mounting base taking into account the coupling effect of mounting points, and relates to the field of ship technology. The present application takes into account that when there are multiple mounting points for marine mechanical equipment, the mounting points will have coupling component influences on each other, and the coupling component has different influences on the single-point input impedance value in different frequency intervals. Therefore, by making corresponding corrections to the single-point input impedance values ​​in different frequency intervals to obtain the installation base impedance value when the coupling effect of the mounting point is taken into account, the calculation error introduced by directly using the single-point input impedance value in the general design method is overcome, and the installation status of the marine mechanical equipment can be reflected more accurately, providing useful engineering guidance for the integrated collaborative design of the installation method of the marine mechanical equipment and the hull installation foundation.

The present invention belongs to the technical field of electronic digital data processing, and more specifically, to a Repack image file encapsulation method for solving the running dependency of HPC applications. The method packages the HPC high-performance computing application and all its runtime dependencies into an independent executable image file, and publishes it in the form of a statically linked executable file. The file has its own container engine and can be run directly, solving the dependency problem encountered in deploying HPC software in different system environments. The method not only supports mainstream architectures, but is also compatible with HPC computing environments. In addition, the Repack image file can be recompiled and optimized to meet the computing needs of different users.

The invention provides an array antenna pattern optimization method and system based on multi-constraint convex optimization, and relates to the technical field of antenna array optimization, and the method comprises the steps: constructing an array topological structure containing a plurality of candidate array element positions based on initial geometric parameters, and setting a existence variable and an initial phase design variable for each candidate array element position; mapping the existence variable into continuous impedance distribution based on a continuous interpolation function to obtain a pseudo-impedance value; substituting the pseudo-impedance value and the initial phase design variable into a moment method electromagnetic field integral equation, calculating surface current distribution, further calculating main lobe direction radiation energy, side lobe area peak radiation energy and the total number of current array elements, determining a radiation efficiency index based on the radiation energy, and updating the design variable based on a gradient optimization algorithm by taking minimization of a negative value of the radiation efficiency index as a target; judging whether a convergence condition is met or not, if yes, converting into an array element sparse layout scheme and a phase excitation scheme, and generating an optimized array antenna directional diagram; otherwise, continuing iterative optimization.

The invention discloses a 3D simulation video remote synchronous playing method. The method comprises the following steps: S1, acquiring action information and state information of control equipment in real time; s2, preprocessing the action information and the state information, and generating a local 3D simulation video in real time; s3, extracting action parameters, scene change parameters and result information from the local 3D simulation video; s4, synchronously generating a remote 3D simulation video by using the action parameters, the scene change parameters and the result information; data transmitted to different places are only action parameters, scene change parameters and result information, the transmission bandwidth and transmission delay of the 3D video are effectively reduced, the action parameters, the scene change parameters and the result information can be sent only through narrow-band wireless transmission, the purpose of local and different-place synchronous playing of the high-definition 3D simulation video is achieved, and the high-definition 3D simulation video playing efficiency is improved. The technical processing complexity can be reduced, the stability and reliability of the system are improved, and the image transmission capability required by system operation is achieved.

The utility model discloses a kind of automobile four-wheel alignment gauges, including the mounting bracket of T-shaped structure, four positioning mechanisms, two optical mechanisms and industrial computer, two optical mechanisms are respectively arranged in the one end of mounting bracket horizontal arm and symmetrically arranged in the two sides of mounting bracket longitudinal arm and with industrial computer electric connection, four positioning mechanisms are symmetrically arranged in the two sides of the longitudinal arm, and four positioning mechanisms are all arranged in the inboard of two optical mechanisms.The utility model can ensure that the center of the positioning of four wheels in the automobile repair process always falls in the design center of automobile, optical mechanism and reflecting plate always keep stable and correct relative position, ensure the accuracy of reflected light path and give accurate wheel adjustment suggestion, and can reduce or shield ambient light to the stray light interference of receiving component, avoid light path calculation error, ensure the accuracy of measurement result.