206 results about "Vertical coordinate" patented technology

The invention discloses an ileum bladder replacement stoma preoperative positioning method based on CT body surface projection. The ileum bladder replacement stoma preoperative positioning method comprises the following steps that S1, region division is conducted on the abdomen; s2, externally adhering developing grid paper to the lower right abdomen of the patient, wherein the developing grid paper is consistent with the human body coordinate system of the lower right abdomen; s3, performing CT scanning on the right lower abdomen of the patient, and establishing a horizontal and vertical coordinate system in an image generated by CT scanning; s4, a plurality of rectus abdominis outer edge positioning points are marked in the foot side direction; s5, inputting the horizontal coordinate values of the plurality of rectus abdominis outer edge positioning points into a laser positioning system on the CT machine tool, finding corresponding longitudinal grid lines on the developing grid paper according to the longitudinal coordinate values corresponding to the horizontal coordinate values and the path information, and dotting and marking on the abdominal skin; s6, the rectus abdominis outer edge positioning points are connected into a line, projection marking is completed, and therefore a final stoma positioning area is determined.

The invention discloses a dynamic layout method and system for washing label printing and a medium, and the method comprises the steps: obtaining definition data of a draft template, including initial attributes of a plurality of layout elements; determining a rendering sequence of the layout elements; constructing a dependency relationship among the layout elements based on the rendering sequence, wherein the dependency relationship is used for identifying a response element corresponding to each layout element; obtaining label data to be rendered, wherein the label data comprises multi-language text data and variable data; traversing the layout elements in sequence, and performing line feed processing on the text elements based on the corresponding multi-language text data to determine the actual occupation height of the text elements; for the bar code element, performing centering positioning processing based on the corresponding variable data, and determining the horizontal position of the bar code element; identifying the trigger element with the actual occupation height different from the initial occupation height; calculating the placeholder height variation of the trigger element, and dynamically adjusting the vertical coordinate of the response element corresponding to the trigger element based on the dependency relationship and the placeholder height variation; and generating and outputting a printed draft of the washing label.

The application provides a human transcranial ultrasound irradiation method, device, electronic equipment and storage medium. The target head sagittal plane tomographic image and the transverse plane tomographic image are acquired; a vertical coordinate system is established based on the sagittal plane tomographic image, and the target point coordinates of the insula in the vertical coordinate system are determined; based on the transverse plane tomographic image, the horizontal distance from the insula to the target head brain midline is measured; the world coordinate point of the insula is mapped in the world coordinate system according to the target point coordinates and the horizontal distance; and the ultrasound transducer is controlled to irradiate the real position of the insula, so that accurate targeted irradiation can be realized, the use cost of the low-intensity focused ultrasound technology is effectively reduced, and the operation is simpler.

The application belongs to the technical field of building structure damage identification, and particularly relates to a model-free detection method for lateral stiffness mutation position of a high-rise structure, comprising the following steps: step one, obtaining the displacement time history response of the same height interval measuring points in the same vertical line of the high-rise structure in the same horizontal direction; step two, calculating the second-order statistical moment of the relative displacement of each measuring point according to the time history response, and solving the lower-to-upper value corresponding to the statistical moment of the measuring point; step three, taking the height of each measuring point as the horizontal coordinate and the lower-to-upper value corresponding to the statistical moment of the measuring point as the vertical coordinate to draw a curve; and step four, observing the mutation of the curve to identify the lateral stiffness mutation position.

The invention provides a converter copper smelting sampling drill rod image correction and extraction method and system, and belongs to the technical field of converter copper smelting. The method comprises the steps that a sampling drill rod RGB image is collected and scaled, and a preprocessed image is obtained; extracting a red channel and a blue channel of the preprocessed image, calculating a difference image, and carrying out binarization threshold processing to generate a preliminary binary mask; performing morphological corrosion operation and connected domain analysis on the preliminary binary mask, and removing a background connected domain to obtain an accurate binary mask; on the precise binary mask, selecting a sampling column and calculating a vertical coordinate centroid to obtain a two-dimensional coordinate point set; performing linear fitting on the two-dimensional coordinate point set to obtain a mathematical equation, and calculating the inclination angle and the center point of the drill rod; and taking the center point as a rotation center, performing affine transformation on the preprocessed image based on the inclination angle, and taking the center point of the drill rod after rotation correction as a reference to cut a standardized drill rod image. According to the invention, automatic correction and extraction of the drill rod image are realized, precision is improved, and safety is enhanced.

The present application belongs to the technical field of road construction materials, and relates to a method and device for testing the interaction of a sandwich structure asphalt aggregate interface by means of a pull-out test, the method comprising: S1, using a set aggregate type and asphalt type, producing a plurality of sandwich structure standard test pieces; S2, obtaining an interaction standard value and a bonding strength standard value, and constructing a standard database; S3, according to the constructed standard database, taking the bonding strength standard value as the horizontal coordinate and the interaction standard value as the vertical coordinate, constructing a standard model of the interaction and the bonding strength; S4, producing a sandwich structure test piece to be tested, obtaining a bonding strength test value, substituting the bonding strength test value into the standard model of the interaction and the bonding strength, and calculating an actual interaction value. The present application tests the interaction of a sandwich structure asphalt aggregate interface by means of a pull-out test, so that the test of the interaction is simpler, and the performance of the interaction between the asphalt-aggregate interface can be well reflected.

In a vertical coordinate system defined by a first direction, a second direction, and a third direction perpendicular to each other, there is provided a battery pack including: a plurality of battery cells stacked in the first direction; and a pack case that houses the battery cells in an internal space, wherein at least a pair of adjacent battery cells among the battery cells each include an electrode assembly, a cover that surrounds the electrode assembly, and a cell lead that protrudes from one side of the cover in the second direction, the cell lead including a first portion that is relatively close to the cover and a second portion that is relatively farther away from the cover, wherein a maximum dimension of the second portion in the first direction is greater than a maximum dimension of the first portion, and the second portion is configured as a plane perpendicular to the third direction.

The application discloses an online checking method and system for an SF6 gas detector, and the method comprises the following steps: controlling a standard gas source to output an asymmetric triangular concentration waveform, wherein the rising rate of the waveform is not equal to the falling rate; collecting real-time concentration of the detector; drawing rising and falling response curves with standard concentration as the horizontal coordinate and real-time concentration as the vertical coordinate; calculating the deviation area between the two curves and an ideal straight line; if the area ratio is not greater than a dynamic threshold, extracting all intersection points of the two curves and sorting them; calculating the algebraic area of the region surrounded by adjacent intersection points to generate a surrounding area symbol string; and determining the fault type according to the intersection point number parity and zero value, intersection point horizontal coordinate interval dispersion degree and symbol string distribution according to the topological classification rule. The asymmetric excitation fully exposes the adsorption-desorption asymmetric characteristics of the sensor, and the response curve topological characteristics realize online identification and classification of baseline separation, translation drift, response lag, nonlinear superposition and noise jamming and the like.

The application discloses a molten silicon liquid level estimation method based on a hybrid adaptive resampling particle filter, and comprises the following steps: firstly, processing laser spot images collected by a CCD sensor to obtain observation data of the liquid level; then, establishing a system state equation of the molten silicon liquid level according to a kinematic principle to describe the movement of the liquid level; performing state estimation on a laser centroid vertical coordinate by using a particle filter algorithm, and obtaining a new particle set by using a hybrid adaptive resampling method; after re-normalizing all particle weights, outputting an optimal estimation value; and finally, smoothing the filtered data by using a moving weighted average method, and the smoothed result is the estimation value of the molten silicon liquid level. The application solves the problem that in the prior art, the variance of Gaussian variation is too large, particles jump out of a sampling range, and it is difficult to accurately estimate a real liquid level.

The application discloses a circuit breaker contact ablation state decoupling evaluation method, comprising the following steps: S1: collecting the static pressure value of the spring in the energy storage maintaining state and the main circuit breaking current signal. S2: calculating the mechanical arcing time and the total arcing time, and obtaining the electrical arcing time by using a coupling model, i.e. S3: setting the static pressure threshold value, the total arcing threshold value and the electrical arcing threshold value, and establishing the circuit breaker contact state judgment criterion related to the static pressure value, the total arcing time and the electrical arcing time. S4: according to the circuit breaker contact state judgment criterion, finding the fault point in the two-dimensional coordinate system with the static pressure value as the horizontal coordinate and the electrical arcing time as the vertical coordinate. The application can effectively eliminate the interference of the mechanical motion speed change on the arcing time, realize the independent decoupling evaluation and accurate quantification of the contact body ablation state, and thus eliminate the ambiguity of fault diagnosis.

The application discloses a kind of based on parameterization shape's deformation character dynamic typesetting rendering method and system, the method includes: according to the preset intensity parameter value range of character rendering, respectively generate corresponding Bezier curve discrete sampling dataset;The curve sampling data corresponding to each intensity parameter is converted into rgb color value, and is stored in texture carrier or using texture array according to line;Synchronous generation auxiliary array, store the maximum vertical coordinate value in the curve sampling data corresponding to each intensity value;The horizontal typesetting processing of to-be-rendered character is carried out, generates temporary image and records original width and height;According to the selected intensity parameter, obtain the corresponding maximum vertical coordinate value in auxiliary array, calculate target image height;Temporary picture, intensity parameter, original width, target image height and rgb color value are input into shader program, and are mapped to Bezier curve deformation space, generate final rendering image.The application can realize efficient, diversified character deformation rendering.

The invention provides a method, a system and a device for generating a two-dimensional Lagrange velocity field, which can be applied to the technical field of fluid mechanics. The method for generating the two-dimensional Lagrange velocity field comprises the steps that molecular marker displacement images are obtained, and the molecular marker displacement images comprise images, collected at different moments, of light-emitting lines generated by tracer molecules in a flow field; discretizing a plurality of light-emitting line images in the molecular marker displacement image to obtain a pixel abscissa and a pixel ordinate of each characterization point in each light-emitting line image; according to pixel horizontal coordinates and pixel vertical coordinates of multiple groups of characterization points in any two adjacent light-emitting line images in the molecular marker displacement image, the instantaneous speed of the target position corresponding to each group of characterization points is obtained through calculation; and generating a two-dimensional Lagrange velocity field corresponding to the tracer molecule based on the instantaneous velocities at the target positions respectively corresponding to the plurality of groups of characterization points in the molecular marker displacement image.

The invention relates to the field of imaging correction, and provides a three-dimensional drift correction method and system for a single-molecule localization super-resolution image, and the method comprises the steps: carrying out the high-speed photographing, and obtaining imaging data; obtaining grouped imaging data including a reference group and a calibration group, and performing neighbor distance point matching in the reference group according to the search area to obtain matched fluorescent points; respectively obtaining a plane average offset and a vertical average offset, and carrying out iteration to obtain a rough correction plane relative displacement and a rough correction vertical relative displacement; performing coarse calibration on the fluorescent points in the calibration group to obtain coarse calibration fluorescent points, selecting the nearest fluorescent point closest to the coarse calibration fluorescent points, calculating a relative plane position difference and a relative vertical position difference, and solving a vector average sum to obtain fine calibration plane relative displacement and fine calibration vertical relative displacement; according to the method, a plane coordinate drift curve and a vertical coordinate drift curve are obtained respectively, imaging data are corrected, and a high-precision corrected fluorescence image can be obtained.

The invention discloses an operation route editing method, device and equipment and a storage medium, and relates to the technical field of unmanned equipment. According to the technical scheme, the method comprises the steps that a three-dimensional view and a corresponding top view are displayed in an editing interface, the three-dimensional view and the top view comprise a to-be-edited operation route, and the operation route comprises a plurality of waypoints; adjusting horizontal coordinates of corresponding waypoints in the three-dimensional view and the top view in response to a first movement operation on the waypoints in the top view, and / or adjusting vertical coordinates of the corresponding waypoints in the three-dimensional view and the top view in response to a second movement operation on the waypoints in the three-dimensional view; and correspondingly adjusting the operation route according to the horizontal coordinates and the vertical coordinates of the adjusted waypoints. By means of the technical means, the problem that in the prior art, when a three-dimensional operation route is edited through a two-dimensional screen, movement is prone to being inaccurate is solved, and the editing accuracy and editing efficiency of the operation route are improved.

An autonomous drone swarm system and method for subterranean and GPS-denied operations utilizing artificial intelligence for coordinated operations comprises command drones equipped with large language model processors and subordinate drones coordinated through a hierarchical Queen-Worker architecture. The system processes natural language commands, generates autonomous mission plans, and coordinates multi-drone operations through an encrypted self-healing mesh communication network utilizing multiple modalities including radio frequency, optical, acoustic, and visual channels. A Unified Ground Frame with Surface-Referenced Z (UGF-SRZ) coordinate system provides signed vertical coordinates enabling seamless operation across surface and subterranean environments. GPS-denied navigation combines multi-sensor dead reckoning, collaborative positioning, and distributed mapping with fog-layer processing for enhanced accuracy. The system implements federated learning protocols for distributed AI improvement, fault-tolerant operation with automatic leader election, and specialized adhesion Workers functioning as persistent infrastructure nodes.

The invention relates to the field of vehicles, in particular to a vehicle toe-in angle and camber angle adjusting method and related equipment. The method comprises the following steps: determining a first control arm and a second control arm from a plurality of candidate control arms; wherein the candidate control arm is used for adjusting a camber angle and a toe-in angle of a wheel; the adjusting slope of the first control arm is a positive value, the adjusting slope of the second control arm is a negative value, and the adjusting slope is the ratio of a camber angle change value caused by the length change of the control arms to a toe-in angle change value; measuring a toe-in angle value and a camber angle value of the wheel; establishing a coordinate system by taking the toe angle as a horizontal coordinate and the camber angle as a vertical coordinate, and dividing the coordinate system into a plurality of adjustment areas according to the adjustment slope of the first control arm and the adjustment slope of the second control arm; and adjusting the toe-in angle and the camber angle of the wheel by adjusting the first control arm and / or the second control arm according to the adjusting areas of the toe-in angle value and the camber angle value in the coordinate system.

The present application relates to the field of construction engineering and geological monitoring technology, and discloses a vertical deformation monitoring method and system based on three-dimensional scanning and differential pressure level gauge. The method comprises the following steps: collecting point cloud data of a building structure in real time by using a three-dimensional scanner, and collecting vertical displacement data of the building structure in real time by using a differential pressure level gauge; obtaining the vertical coordinates of the point cloud by using a three-point registration algorithm, and calculating the vertical coordinate difference value of the point cloud to obtain a first difference value; calculating the average of the first vertical displacement data of the current monitoring period and the average of the second vertical displacement data of the previous monitoring period, and calculating the difference value between the average of the first vertical displacement data and the average of the second vertical displacement data to obtain a second difference value; and weighting the first difference value and the second difference value according to the standard deviation of the point cloud data and the standard deviation of the vertical displacement data, and calculating the final vertical deformation of the building structure by using a weighted average method. By implementing the present application, the cost of manual measurement is reduced, and the defect of single data source is changed.

This invention relates to the field of electric vehicle positioning, and more particularly to a remote satellite positioning method and system for electric vehicles. The method includes the following steps: acquiring electric vehicle positioning signals and constructing a positioning signal sequence; performing multi-segment signal spatial coordinate calculations based on the positioning signal sequence to generate standardized location coordinates; performing public map scene type analysis on the standardized location coordinates to generate scene recognition results; the scene recognition results include open scenes and three-dimensional floor scenes; when the scene recognition result is an open scene, performing adaptive environment rendering to generate a visualized positioning scene; when the scene recognition result is a three-dimensional floor scene, performing vertical coordinate transformation and three-dimensional spatial positioning calculations on the positioning signal sequence to output visualized floor positioning information. This invention achieves real-time and accurate intelligent positioning of electric vehicles, quickly guiding users to efficiently find their vehicles.

A kind of open pit model dynamic updating method based on real-time positioning of excavator and SDF belongs to the technical field of digital mine. The initial pit triangular mesh model is voxelized to generate a three-dimensional symbolic distance field based on the definition of vertical coordinate symbol. The three-dimensional positioning data of the center of rotation of the excavator is collected in real time through the GNSS-RTK positioning module, and the working state is judged based on the preset time window and displacement threshold. When the excavator switches from displacement state to digging state, a spherical mining influence domain is constructed with the current positioning data as the center of the sphere and the maximum digging radius as the radius, and the voxel symbol distance field value in the domain is set to 0. A control point set is constructed by boundary constraint points and background constraint points, and global symbol distance field smoothing reconstruction is realized by using radial basis function interpolation. The zero value isosurface is extracted by moving cube algorithm to generate the updated pit model. The present application realizes high-frequency model updating synchronized with operation, has low deployment cost and strong robustness, and solves the problems of model updating lag and visualization penetration.

The application discloses a free-form surface optical imaging method and system, and relates to the technical field of true three-dimensional technology; the technical points are as follows: acquiring light field source data; forming optical emission parameters, and constructing a three-dimensional physical coordinate sequence based on a discretized three-dimensional voxel set; collecting a surface equation parameter of the free-form surface and a physical distribution parameter of a light field projection array; arranging an optical path transmission matrix according to four dimensions of a light source horizontal coordinate, a light source vertical coordinate, a target space horizontal coordinate and a target space vertical coordinate to obtain an initial four-dimensional light ray transmission tensor; calling a tensor decomposition operator to perform dimension reduction processing on the four-dimensional light ray transmission tensor to generate a spatial modulation characteristic base matrix; generating a modulation driving flow based on the light field source data and the spatial modulation characteristic base matrix; driving the light field projection array to output a modulation light field according to the modulation driving flow; and the modulation light field is reflected or transmitted by the free-form surface and converges at a specified physical space position to form a spatial three-dimensional pixel; and the application improves the precision and definition of true three-dimensional imaging.

The invention discloses an internal fault detection method and device for insulating oil filled power equipment, and relates to the technical field of power equipment state monitoring, and the method comprises the steps: calculating the volume percentage of each characteristic gas in an insulating oil sample in the total characteristic gas; selecting two kinds of characteristic gases from the three kinds of characteristic gases as a first gas and a second gas respectively, and constructing a rectangular coordinate system taking the volume percent of the first gas as a horizontal axis variable and the volume percent of the second gas as a longitudinal axis variable; determining a target area in the rectangular coordinate system as a fault diagnosis space; according to a fault classification rule, dividing the target area into a plurality of fault areas which are not overlapped with each other; obtaining a target coordinate point by taking the volume percentage of the first gas as a horizontal coordinate and the volume percentage of the second gas as a vertical coordinate; and determining a target fault type according to the fault area of the target coordinate point. Therefore, the detection efficiency is improved while the detection accuracy is ensured.

The invention provides a monocrystalline silicon crystal defect distribution detection method which comprises the following steps: cutting a monocrystalline silicon raw material to obtain a crude sample, and pretreating the crude sample to obtain a pretreated sample; sequentially carrying out primary corrosion, thermal oxidation treatment, secondary corrosion and defect corrosion on the pretreated sample to obtain a sample to be detected; acquiring a plurality of image data of the surface of the to-be-tested sample by using an optical microscope, respectively identifying the crystal defect density in each image data, and recording a position density associated data set according to the test position of the acquired image data; and based on the position density associated data group, drawing a defect radial distribution diagram taking the test position as an abscissa and the defect density as an ordinate, and confirming the distribution mode of the monocrystalline silicon crystal defects. The detection method disclosed by the invention is simple to operate, pollution is prevented from being introduced, the distribution condition of crystal defects can be rapidly and accurately detected, and guidance is provided for adjustment of a crystal growth process.

The seawall settlement detection device comprises a plurality of ultrasonic transmitters and a settlement data acquisition device, a plurality of positioning blocks are arranged on a seawall side slope and distributed at different height positions of the seawall side slope, a concrete column is poured outside the seawall, and a plurality of ultrasonic transmitters are arranged on the concrete column. Each positioning block is detachably connected with an ultrasonic transmitter, the settlement data acquisition device is detachably installed on the concrete column, and the ultrasonic transmitters and the settlement data acquisition device are located on the same vertical plane. An ultrasonic receiver of the device obtains the distance of each ultrasonic transmitter and transmits the distance to a calculation chip through an ultrasonic signal output end, and the calculation chip calculates the vertical coordinates between the ultrasonic transmitters according to the received information. Finally, seawall settlement information can be obtained by calculating the difference value between the vertical coordinates of the ultrasonic transmitter at different moments and the initial vertical coordinates, and the settlement amount is displayed through a data displayer.

The invention discloses a deformed character dynamic typesetting rendering method and system based on a parameterized shape, and the method comprises the steps: generating corresponding Bezier curve discrete sampling data sets according to a preset intensity parameter value range of character rendering; curve sampling data corresponding to each intensity parameter are converted into rgb color values, and the rgb color values are stored in a texture carrier in rows or stored by using a texture array; synchronously generating an auxiliary array, and storing the maximum vertical coordinate value in the curve sampling data corresponding to each intensity value; performing transverse typesetting processing on the to-be-rendered text, generating a temporary image, and recording the original width and height; according to the selected intensity parameter, obtaining a corresponding maximum vertical coordinate value from the auxiliary array, and calculating the height of the target image; and inputting the temporary picture, the intensity parameter, the original width, the target image height and the rgb color value into a shader program, mapping to a Bezier curve deformation space, and generating a final rendered image. According to the invention, efficient and diversified character deformation rendering can be realized.

The application discloses a point cloud filtering method and system for a laser scanner, and the point cloud filtering method comprises the following steps: acquiring point cloud data to be processed; generating a two-dimensional image according to the spherical coordinates of all data points in the point cloud data, wherein the horizontal coordinate of each pixel of the two-dimensional image corresponds to the azimuth of a data point, the vertical coordinate corresponds to the elevation of the data point, and the pixel value of the pixel corresponds to the depth value of the data point; for each data point, the size of the filtering core of the data point is acquired according to the depth value; for a target data point, the neighbor data points of the target data point are found on the two-dimensional image according to the size of the filtering core; the depth value of the target data point is acquired by using the neighbor data points, and the coordinates of the target data point are updated by using the filtered data. The application greatly shortens the operation time of point cloud processing, obtains point cloud data with less noise, thinness and accuracy in a shorter operation time, and improves the accuracy of point cloud measurement and the quality of plane segmentation.

The application provides a control method, a compressor and an air conditioning system. The control method comprises the following steps: constructing a rectangular coordinate system according to the relationship between the operating frequency and the operating pressure ratio of the compressor; the horizontal coordinate of the coordinate system represents the operating pressure ratio of the compressor, and the vertical coordinate of the coordinate system represents the operating frequency of the compressor; wherein the operating pressure ratio is the ratio of the condensing pressure to the evaporating pressure of the unit to which the compressor belongs; obtaining the surge line of the compressor on the coordinate system; dividing the horizontal coordinate of the coordinate system into intervals; obtaining interval anti-surge lines according to different intervals respectively, fitting the interval anti-surge lines of different intervals to form an anti-surge control line; obtaining an operating area according to the anti-surge control line; wherein the operating area is an area above the anti-surge control line on the coordinate system; and controlling the operating frequency of the compressor according to the value in the operating area. The control method of the application solves the technical problem of poor anti-surge control precision of the compressor.

The invention relates to the technical field of analytical chemistry and hydrometallurgy, in particular to a method for measuring coordination number of organic acid and RE < 3 + > by using a molar ratio method. The method comprises the following steps: S1, preparing a plurality of organic acid solutions of CY with different concentrations, preparing a RE3 + solution of CM, mixing the organic acid solutions and the RE3 + solution in an isovolumetric manner, adjusting the pH value, and carrying out a complexation reaction; s2, carrying out ultraviolet spectrophotometric measurement, determining the maximum absorption wavelength, and determining the absorbance A of the solutions after the complexation reaction under the maximum absorption wavelength; s3, drawing by taking the molar ratio n = [CY] / [CM] as a horizontal coordinate and the absorbance A as a vertical coordinate, and finding out an interval in which the absorbance linearly rises along with the increase of n and an interval in which the absorbance reaches a platform or the slope is obviously changed; linear fitting is conducted on the data points of the two intervals, two straight lines are obtained, and the value of an abscissa n corresponding to the intersection point of the two straight lines is the coordination ratio of the complex. The method is reliable in result, low in cost, easy to popularize, convenient and fast.

The invention provides an inverse hysteresis curve model parameter identification method based on an improved Madelung inverse model. The method comprises the following steps: establishing a rate-dependent dynamic hysteresis Madelung inverse model; setting zoom coefficients eta and M, determining the left and right end points of each selected curve segment, then performing similarity transformation and weight superposition to obtain an inverse hysteresis rising curve function, and observing that the modeling error meets the requirement through an experiment; the weight superposition strategy endpoint value and the scaling coefficient parameter identification mode of the inverse hysteresis descent curve function are similar to those of the inverse hysteresis ascent curve function; and after the abscissa and the ordinate of the main hysteresis rising curve and the abscissa and the ordinate of the main hysteresis falling curve are interchanged, performing least square method identification to obtain an inverse main hysteresis rising curve and an inverse main hysteresis falling curve. According to the method, the internal characteristics of the inverse main hysteresis curve are deeply excavated, so that the precision bottleneck of a traditional Madelung inverse model is broken through; and a more effective nonlinear compensation solution is provided for a piezoelectric precision driving system.

The invention belongs to the technical field of detection methods, and provides a method for rapidly determining the content of index components in formula granules, and the method comprises the following steps: detecting the content of the index components in formula granules to be detected by adopting a thin-layer scanning method, and calibrating the measured content of the index components; the calibration comprises the following steps: substituting the measured index component content as an independent variable into a linear regression equation to calculate a dependent variable, and taking the calculated dependent variable as the calibrated content; wherein the establishment mode of the linear regression equation comprises the following steps: carrying out linear regression by taking the content of the index component in the formula granules detected by a thin-layer scanning method as a horizontal coordinate and taking the content of the index component in the same formula granules detected by a high-performance liquid chromatography method as a vertical coordinate. According to the method, the content of the index components in the formula granules can be rapidly determined, the operation is simple and convenient, the result accuracy is high, and the method has a good application prospect.

The invention discloses a method and electronic equipment for identifying earthquake precursor anomalies based on gas concentration. The method comprises the following steps: acquiring fault gas concentration data of a plurality of detection points; establishing a gas concentration dynamic feature classification model in the fault stable deformation and deviation linear stage; training the model, and extracting a gas concentration background sequence and a gas concentration non-background sequence; a gas concentration equivalent distribution diagram is drawn, the ordinate is time, the abscissa is the position of the detection point, and the gas concentration non-background sequence data is used for drawing an isoline distribution diagram; and according to the gas concentration equivalent distribution diagram, fault activity collaboration information is analyzed, and whether a sub-instability stage is entered or not is judged.