64 results about "Planar grid" patented technology

The utility model discloses a semiconductor device, which belongs to the field of semiconductors, and at least comprises a substrate; the well region is arranged in the substrate; the two drift regions are arranged in the well region at intervals, and shallow trench isolation structures are arranged in the drift regions; the body region is arranged in the well region between the two drift regions; the vertical grid electrode is located in the body region, and the vertical grid electrode extends into the well region from the surface of the substrate; the source doped regions are respectively arranged in the body regions on the two sides of the vertical grid electrode; the drain doping region is arranged in the drift region; and the planar grid electrode is arranged around the vertical grid electrode and the source doping region and covers part of the body region, part of the well region and part of the shallow trench isolation structure. According to the semiconductor device provided by the utility model, the characteristic on-resistance can be reduced and the performance of the semiconductor device can be improved under the condition that the breakdown voltage is not changed.

According to the rice cultivation seedbed field surface terrain and cultivation depth integrated measurement method and the rice cultivation seedbed preparation equipment, a rotary cultivator serves as a measurement platform, and a double-antenna GNSS and an IMU are installed on a rack and a dragging plate respectively so as to measure the course angle, the pitch angle and the roll angle of the cultivator and the rotation angle of the dragging plate relative to the rack; establishing a vehicle body coordinate system; establishing a spatial position vector of the deepest soil cutting point of the rotating blade and a carriage profiling point under a vehicle body coordinate system; during rotary tillage operation, a homogeneous coordinate transformation method is adopted to synchronously measure three-dimensional coordinates of the deepest soil cutting point and the profiling point under coordinates of the east, north and sky, and a deepest soil cutting point set and a profiling point set are constructed; combining the two point sets, extracting plane coordinates of the farmland boundary, and arranging plane grid points; estimating the field terrain height of each plane grid point by using the profiling point set; and estimating the tilling bottom layer terrain height of each plane grid point by using the deepest soil point set, and calculating the tilling depth of each grid point. The invention has high efficiency and accuracy, and belongs to the mechanical agricultural equipment manufacturing technology.

One or more embodiments of the invention provide a three-dimensional model generation method, apparatus and device, a medium and a program product. The method is applied to CAD software and comprises the following steps: acquiring a plane image and a model thickness of a modeling object; generating a plane grid for the modeling object according to the plane image; generating a front grid, a back grid and a side grid for the modeling object according to the plane grid and the model thickness; and combining the front grid, the back grid and the side grid into a three-dimensional grid, and mapping the texture of the plane image to the three-dimensional grid to obtain a three-dimensional model of the modeling object.

The invention discloses an aircraft grid generation method and device based on conformal mapping and topological segmentation, equipment and a storage medium, and relates to the technical field of computational fluid mechanics, and the method comprises the steps: generating a surface unstructured grid according to an aircraft model, carrying out the conformal mapping to a parameter domain plane grid through Ricci flow, and calculating the compression ratio of the surface unstructured grid; if the compression ratio is smaller than a first threshold value, extracting a contour line corresponding to a second threshold value; positioning a triangular grid corresponding to the isoline discrete points in the parameter domain plane grid by using a spatial partitioning algorithm, inserting the discrete points into the grid according to the relationship between the vertex distance and the edge distance, forming a closed internal boundary through a one-dimensional boundary recovery operation, and determining a corresponding region; the area is inversely mapped back to the three-dimensional surface, the surface grid is updated, the mapping and judging steps are repeated until the compression ratio meets the requirement, and the parameter domain plane grid is set as a target aircraft grid, so that the efficiency of generating the aircraft grid is improved.

The invention provides an airspace gridding method and device, equipment and a medium, and the method comprises the steps: collecting an airspace boundary geographic data set, taking a horizontal plane at the lowest altitude of a to-be-gridded region as a base surface, determining an airspace boundary based on a boundary contour point geographic coordinate sequence, and carrying out the upward filling of grids based on the base surface, obtaining a gridded three-dimensional airspace and a two-dimensional projection thereof; respectively determining the maximum value point and the minimum value point of the longitude and the latitude to construct a first plane; carrying out gridding on the first plane; and if a plurality of different height values exist, determining the maximum height point, subdividing the airspace between the minimum height point and the maximum height point to obtain second space grids and codes, and screening the second space grids contained in the three-dimensional polygonal region or intersected with the three-dimensional polygonal region. According to the method and the device, the grids and codes of the height dimension between the area bottom plane grids and the boundary contour points are determined, so that the spatial domain is expanded from 2D to 3D grids, and accurate three-dimensional spatial domain gridding is closed.

The invention discloses a label splicing method after vehicle identification failure in a semi-closed space, and the method comprises the following steps: carrying out the joint calibration of vehicles through a camera and a radar, and endowing each vehicle entering the semi-closed space with an entry label; constructing a plane gridding base map for the semi-closed space, and constructing existence probability distribution of the target vehicle in the base map; if the detection of the target vehicle is lost, predicting and correcting the position of the target vehicle; and when the target vehicle is identified by the radar again, track connection is carried out on the current observation item and the historical base map item with the highest matching degree. The method has the beneficial effects that by introducing a base map track memory and re-recognition matching mechanism, the label information of the vehicle in a multi-radar and multi-camera cooperative scene can be continuously continued. Compared with the problem of re-numbering after shielding or broken identification in a traditional method, the method can effectively reduce the phenomena of track breakage and wrong numbering, and remarkably improves the continuity and reliability of vehicle global tracking.

The invention discloses a dynamic nerve radiation field real-time three-dimensional reconstruction method and device based on window attention and gradient equilibrium, and the method comprises the steps: carrying out the stratified sampling of rays, and obtaining sampling points; projecting the sampling points to six groups of two-dimensional feature planes; querying corresponding feature vectors from the six groups of feature planes through bilinear interpolation, and generating spatio-temporal features through Hadamard product fusion; inputting the fused spatial-temporal characteristics into a decoding network of a Swin Transform, and outputting the color and the volume density of a corresponding sampling point; and carrying out volume rendering integration along the ray of the camera to generate a composite image, and optimizing and updating the model according to a multi-target loss function between the composite image and a real image. The invention aims to solve the problems of large memory consumption, poor rendering quality, long training time and poor geometric consistency in the prior art, and realizes real-time three-dimensional reconstruction of a dynamic scene by using six-plane grid representation, Swin Transform feature generation and a gradient equilibrium mechanism.

The invention provides a shot peening forming deformation prediction method and system based on three-layer equivalent inherent strain, and the method comprises the steps that the three-layer equivalent inherent strain under preset technological parameters is calibrated based on a calibration sample of a preset size, and the preset technological parameters are technological parameters adopted when a target wallboard is machined; establishing a finite element model of the target wallboard, dividing the finite element model into three layers along the thickness direction of the finite element model, and dividing plane grids; loading the calibrated three-layer equivalent inherent strain to a shot blasting area of the finite element model; and activating the inherent strain field and carrying out elastic analysis to obtain a deformation prediction result. According to the embodiment of the invention, efficient, accurate and universal shot peening forming deformation prediction can be realized.

The application discloses an aircraft grid generation method and device based on conformal mapping and topological segmentation, equipment and a storage medium, relates to the technical field of computational fluid dynamics, and comprises the following steps: generating a surface unstructured grid according to an aircraft model, conformally mapping the surface unstructured grid to a parameter domain plane grid through Ricci flow, and calculating the compression rate of the parameter domain plane grid; if the compression rate is less than a first threshold value, extracting an isoline corresponding to a second threshold value; locating a triangular grid corresponding to an isoline discrete point in the parameter domain plane grid by using a spatial partition algorithm, inserting the discrete point into the grid according to the vertex distance and edge distance relationship, forming a closed internal boundary through a one-dimensional boundary recovery operation, and determining a corresponding region; inversely mapping the region back to a three-dimensional surface, updating the surface grid, and repeating the mapping and judging steps until the compression rate meets the requirement, and setting the parameter domain plane grid as a target aircraft grid, so that the efficiency of generating the aircraft grid is improved.

The application discloses an aircraft structured grid generation method and device based on dipole regulation, equipment and a storage medium, relates to the technical field of aircraft, and comprises the following steps: mapping a non-structured grid of an aircraft to a plane space corresponding to a parameter domain to obtain a parameter domain plane grid, and determining a compression ratio value between the non-structured grid and the parameter domain plane grid; determining a target feature point set based on the angle values of each dihedral angle in the parameter domain plane grid; generating an initial scalar field based on the compression ratio value, and superimposing a dipole field corresponding to a target dipole on the initial scalar field to form a target scalar field; adjusting a feature parameter corresponding to a target contour line in the target scalar field until the distance between the target contour line and each feature point in the target feature point set meets a preset condition, and then determining the adjusted target contour line as a target feature line to generate a target grid line of the aircraft. In this way, the aircraft structured grid with good orthogonality can be obtained.

The invention relates to the technical field of packaging, and discloses a low-cavity packaging method of a microelectronic component and the microelectronic component, and the method comprises the steps: S1, providing a packaging substrate; s2, preparing solder paste with a first activity grade; s3, uniformly coating the prepared solder paste on an interconnection bonding pad of a packaging substrate; s4, mounting an electronic component on the internal interconnection bonding pad of the packaging substrate; s5, reflow soldering is carried out, welding of the electronic component and the packaging substrate is completed, meanwhile, the solder paste at the external interconnection bonding pad is made to be formed into a plane grid array welding spot structure, reflow soldering is carried out according to a preset temperature curve, the peak temperature of the preset temperature curve is set to range from 240 DEG C to 260 DEG C, and the duration time of a uniform temperature section of the preset temperature curve ranges from 60 seconds to 90 seconds; s6, quality monitoring is conducted through a micron focal spot system, the resolution ratio of the system is smaller than or equal to 5 microns, and the scanning frequency is 10 frames per second. The LGA welding spot void rate can be reduced, and the reliability of the microelectronic assembly is improved.

The present invention relates to the field of image processing, and in particular relates to a method for generating simulated samples of foreign object defects of an overhead power transmission line. The method comprises: forming a sample image of a defect-free overhead power transmission line; constructing a component segmentation network, and extracting masks of different key power components; constructing a coordinate set of line suspension points, and randomly selecting a line suspension point from the set of line suspension points; and performing simple three-dimensional modeling on a foreign object by means of a planar grid, randomly generating a foreign object annotation bounding box in the sample image, and adding a foreign object image and the foreign object annotation bounding box to the sample image, such that the line suspension point and a foreign object suspension point coincide with each other.

The utility model provides a planar gate VDMOS with low reverse recovery interference. The planar gate VDMOS is characterized in that a plurality of buffer regions are arranged in a silicon carbide substrate; the lower side surface of the drift layer is connected to the upper side surface of the silicon carbide substrate, a variable doping region is arranged in the drift layer, and a lug boss is arranged on the drift layer; the lower side surface of the P-type well region is connected to the upper side surface of the drift layer; the inner side surface of the P-type well region is connected to the outer side surface of the lug boss; a P-type source region and an N-type source region are arranged in the P-type well region, and the P-type source region is connected with the N-type source region; the P-type well region is positioned right above the variably doped region; the lower side surface of the gate dielectric layer is respectively connected with the lug boss and the P-type well region; the gate metal layer is connected to the gate dielectric layer; the drain metal layer is respectively connected with the P-type well region, the P-type source region and the N-type source region; the drain metal layer is connected to the lower side surface of the silicon carbide substrate and each buffer region, and the buffer regions are constructed in the device, so that the rising edge of reverse recovery overshoot of the device can be effectively reduced, and the external interference of the device is reduced.

The present invention provides a method and system for numerical simulation of carbonate rock deposition, comprising the following steps: step 1, constructing a planar grid model including multiple grid points based on the actual study area; step 2, obtaining environmental physical parameters, population parameters, and the population size of each grid point at the current deposition simulation time, and determining the current population size of each grid point at the current deposition simulation time based on a Generalized Lotka-Volterra model applicable to multiple species; step 3, determining the carbonate rock deposition thickness based on a carbonate rock vertical yield model; step 4, determining the depositional topography at the previous deposition simulation time, and obtaining the current depositional landform; step 5, using the current depositional landform as the depositional topography at the next deposition simulation time, using the current population size as the population size at the next deposition simulation time, and repeating steps 2 to 4 until the deposition simulation ends. The present invention improves the rationality and accuracy of numerical simulation of carbonate rock deposition.

The invention discloses a three-dimensional geological modeling method and system for a gas reservoir of a gas storage. The method comprises the steps of modeling data preprocessing, wherein layering and well track errors are analyzed and corrected, a denudation area range is represented, stratigraphic structure data are processed, logging data and experimental data are processed and analyzed, model and constraint body data are determined, and a database is formed; building a construction model: building the construction model based on a plane gridding method, and carrying out local construction adjustment and verification; establishing an attribute model: simulating the physical property parameters based on the sedimentary microfacies type of the position of the physical property parameter point and forming the attribute model; and reserve calculation and uncertainty analysis: calculating the reserve of the gas reservoir based on the construction model and the attribute model, and performing cross check by using the average reservoir thickness and the attribute value of the model input data in comparison with the calculation value based on the planar graph. According to the method, a plurality of modeling methods are adopted for interactively processing the contact relation between the fault and the stratum, and the problems of high and steep recoil structures, thin reservoir denudation area characterization and the like can be effectively solved.

Systems and techniques are provided for processing image data corresponding to a scene. A method may include generating a planar distance map including planar distance values for each pixel of at least one image corresponding to a scene. Plane segmentation is performed based on the plane distance map, a normal map corresponding to the at least one image, and position encoding information of the plane distance map. Triangular mesh segments are initialized based on sampling points from each of a plurality of planar segments from planar segmentation. A ray-triangular intersection is determined based on performing ray casting on a reconstructed planar grid comprising a plurality of triangular grid segments, each triangular grid segment corresponding to a different image. A planar reconstruction and segmentation machine learning network is optimized for a scene based on training the planar reconstruction and segmentation machine learning network using one or more loss functions.

A method includes: obtaining and splicing a plurality of frames of point cloud data to obtain a complete point cloud model of an indoor structure; extracting point cloud plane features corresponding to the complete point cloud model, and classifying the point cloud plane features into indoor structure types comprising a floor, a wall, and a ceiling; projecting point cloud data of the wall onto a plane of the floor to generate a planar grid graph; and generating a two-dimensional plane view of the indoor structure based on the planar grid graph.

This invention relates to the field of freeze-drying technology, specifically to an intelligent vacuum freeze dryer and its usage method. The dryer includes a main unit and a pre-freezing vacuum chamber within it, a shelf placed inside the pre-freezing vacuum chamber, the shelf having an internal cavity and a main gas inlet at its bottom for gas to enter the internal cavity; a carrying tray with multiple evenly arranged internal components for storing materials, the tray having multiple planar grids and heating elements for releasing heat, multiple push rods for moving materials within the planar grids, and an adjustment component for adjusting the position of the push rods according to different usage environments; and side rotating columns with multiple evenly rotatable components connected to the sidewalls of the carrying tray, each side rotating column having multiple exhaust ports, and the carrying tray having an efficiency-enhancing component for driving the side rotating columns.

The present application relates to airspace grid planning technical field, especially in kind of low-altitude air route's multiscale grid airspace construction method, equipment and medium, the method includes: obtaining the safety interval and weight coefficient of various low-altitude aircraft, respectively determine the minimum scale, maximum scale of plane grid and height area, from minimum scale to maximum scale range, corresponding to obtain the maximum level number of plane grid and the maximum level number of height area, and the plane grid scale or height area scale of each level, traverse all possible maximum level and several scale sequence scheme corresponding to each maximum level, to represent the required grid number of each type of safety interval weighted sum minimum as the target, select the optimal level number and corresponding each level scale, corresponding multi-level plane grid and multi-level height area are decoupled combination, construct multiscale three-dimensional grid airspace;The present application can improve airspace utilization and low-altitude airspace route planning flexibility under the premise of ensuring operation safety.

The invention provides a multi-stage and multi-region precise ammonia spraying device system for an SCR (Selective Catalytic Reduction) denitration technology and an ammonia spraying flue gas denitration method. The ammonia spraying device system comprises an SCR denitration reactor and an intelligent control system; the SCR denitration reactor is parallel to the flue gas circulation direction and comprises a mixing device and a reaction device; a primary ammonia spraying grid and a static mixer are sequentially arranged in the mixing device in the direction perpendicular to the flowing direction of flue gas; a rectifying grid, a flow velocity plane gridding monitoring system and at least two groups of denitration units are sequentially arranged in the reaction device. The flow velocity plane gridding monitoring system and the intelligent control system are utilized, the ammonia spraying amount of different partitions of different denitration units is synchronously adjusted according to the real-time flow velocity distribution condition, the problems of insufficient denitration efficiency, high ammonia escape and the like caused by uneven flow velocity at a catalyst inlet are solved, accurate supply of ammonia is achieved, the SCR denitration efficiency is guaranteed, meanwhile, the ammonia utilization rate is increased, and the economic benefit is increased. And the purpose of reducing ammonia escape is achieved.

The present invention discloses a multi-scale random reconstruction method and system for three-dimensional mesoscopic concrete aggregates. The method comprises the following steps: obtaining and performing three-dimensional reconstruction and segmentation on a scanned image of a concrete test block, extracting STL format files of multiple reference aggregates; selecting a reference aggregate with target morphological characteristics and performing a spherical harmonic expansion on it; then, by selecting a mode of the spherical harmonic expansion, fitting the discrete surface of the target reference aggregate into a continuous polar radius function; constructing a two-dimensional regular plane grid, using the polar radius function to perform radius sampling at each grid node in the two-dimensional regular plane grid, so that the target reference aggregate surface is converted into a regular reference radius field or reference radius fields of different scales; extracting statistical information of the reference radius field and performing random field reconstruction on it to generate multiple three-dimensional random aggregates. The present invention can reconstruct a large number of realistic three-dimensional random aggregates with multi-scale morphologies, effectively saving a large amount of costs associated with image scanning experiments and processing.

The invention belongs to the technical field of sheet machining, and discloses a sheet plane grid groove cutting device and method.The sheet plane grid groove cutting device comprises a base, an X-axis moving mechanism, a rotation driving mechanism, a workpiece positioning mechanism and a cutting mechanism, the X-axis moving mechanism comprises an X-axis sliding block connected to the base in a sliding mode, and the rotation driving mechanism is arranged on the X-axis sliding block; comprising a workpiece carrying table and a rotary motor driving the workpiece carrying table to rotate around the vertical axis, a positioning groove used for containing a to-be-machined workpiece is formed in the top end of the workpiece carrying table, and a workpiece positioning mechanism comprises a fixing frame arranged on an X-axis sliding block, a movable gland located over the workpiece carrying table and a pressing driving piece connected between the fixing frame and the movable gland. The cutting mechanism comprises a Y-axis moving mechanism, a Z-axis moving mechanism and a multi-saw-blade cutting assembly. According to the multi-groove synchronous cutting device, rapid positioning and multi-groove synchronous cutting can be conducted on thin plate type workpieces, rotating and reversing are convenient, and the problems that in the prior art, the cutting efficiency is low, clamping is difficult, and precision is insufficient can be solved.

The invention provides a stratigraphic structure coupling model parameterized grid generation method, device and equipment, and the method comprises the steps: constructing a lining contour, and determining an inner side line and an outer side line of a coupling region; for the coupling area, the centroid of the lining enclosure surface and the centroid angle of each node on the inner side line and the outer side line are calculated; performing density unification on the inner side line and the outer side line of the coupling area, and performing segmented equipartition and grid point generation on the relatively sparse side lines; generating radial grid points of the coupling region based on a pre-compiled grid size step-by-step gradient segmentation algorithm; and performing plane division on the coupling region to obtain a two-dimensional plane grid or a three-dimensional grid, and generating a target grid model in combination with a lining structure. According to the method, the calculation precision requirement and the calculation efficiency requirement of the numerical analysis model are highly considered, and the problems of large grid division difficulty and poor grid quality in the prior art are solved.

The present application relates to a kind of flat plate fitting setting surface modeling method, comprising the following steps: setting surface is modeled to form original surface, the approximate center point of original surface is analyzed and sought, and first principal curvature direction vector and second principal curvature direction vector are established in the approximate center, with the direction of first principal curvature direction vector and second principal curvature direction vector, plane grid is established, and the plane grid covers original surface;The quadrate flat plate fitting grid of surface fitting is formed to the plane grid, so that the shape of fitting grid tends to the shape of original surface;After fitting, the quadrate flat plate is cut to form fitting surface by several plane units, for subsequent construction production, convenient to use, simple operation, low cost.

The application discloses a method for vehicle identification and label continuation after disconnection in a semi-closed space, comprising the following steps: jointly calibrating vehicles through a camera and a radar, and giving a target label to each vehicle entering the semi-closed space; constructing a planar gridded base map for the semi-closed space, and constructing a presence probability distribution of the target vehicle in the base map; if the detection of the target vehicle is lost, performing position prediction and correction on the target vehicle; when the target vehicle is recognized by the radar again, the current observation item is matched with the historical base map item with the highest matching degree to continue the track. The application has the beneficial effects that: by introducing a base map track memory and re-identification matching mechanism, the label information of the vehicle can be continuously continued in a multi-radar and multi-camera collaborative scene. Compared with the re-numbering problem of the traditional method after occlusion or disconnection, the application can effectively reduce the track breakage and misnumbering phenomenon, and significantly improve the continuity and reliability of the global tracking of the vehicle.

This invention belongs to the field of organic electronic device technology and discloses a planar gate structure longitudinal copolymer organic field-effect transistor and its fabrication method. The longitudinal copolymer organic field-effect transistor structure sequentially includes a substrate, a drain, an organic semiconductor layer, a source, an organic dielectric layer, and a gate, wherein the gate is located on the top layer, the drain is located on the bottom layer, and the source is located on the middle layer. The drain forms a fully covered planar electrode above the substrate. The source and gate are composed of multiple parallel, equally spaced strip electrodes in an interdigitated distribution. The channel length between the source and drain is the thickness of the organic semiconductor layer, which is determined by the concentration of the organic solution and the spin coating speed, and the channel length is 40nm~300nm. Because the gate adopts a planar gate structure, this invention eliminates the need for high-precision etching and photolithography processes, reducing the fabrication difficulty of the longitudinal copolymer organic field-effect transistor.

The embodiment of the invention provides a modeling method and device for a battery material structure, and the method comprises the steps: obtaining the data of the battery material structure, and mapping a plurality of atoms in the data of the battery material structure into a plane grid; calculating a first height value and a first RBG value of a grid where each atom in the planar grid is located, and adjusting the RBG value of the colored grid according to the first RBG value when judging that the first height value is greater than the height value of the colored grid at the current position; chemical bonds used for connecting the multiple atoms are determined, a second height value and a second RBG value of a grid where each chemical bond is located are calculated, and when it is judged that the second height value is larger than the height value of a colored grid at the current position, the RBG value of the colored grid is adjusted according to the second RBG value, so that the ball and stick model of the battery material is obtained. Therefore, the ball and stick model of the battery material is constructed in the plane grid, the model has a pseudo-stereoscopic visual effect, and the modeling speed is high.

The present application provides a material ablation interface mesh reconstruction method, device, equipment and medium, the method includes defining the normal of the material matrix phase plane, horizontally unfolding the curved space quadrilateral mesh of the initial shape of the ablation interface of a single cylindrical fiber to obtain a plane mesh, updating the ablation interface mesh points by interpolation according to the normal of the material matrix phase plane, and obtaining the ablation interface horizontal mesh; based on the horizontal mesh of the ablation interface of a single cylindrical fiber, performing mesh distortion judgment and reconstruction update on each layer of mesh points. According to the above steps, the distortion judgment and reconstruction update of all mesh layers and the mesh reconstruction of each single cylindrical fiber are completed, thereby realizing the material ablation interface mesh reconstruction. The present application has the characteristics of high mesh distortion judgment efficiency, fast distortion reconstruction processing speed and small amount of numerical calculation, and is suitable for processing the optimization and reconstruction of the interface mesh in the process of ablation interface evolution tracking based on the Lagrangian method.

The invention belongs to the technical field of petroleum geologic modeling, and relates to a small-scale geologic body geologic modeling optimal network size selection method and system, and the method comprises the steps: comparing the plane distribution of a geologic body with a plane grid result, and drawing a plane grid size optimal curve according to the comparison result; the reservoir interpretation conclusion of all well points in the geological body is compared with the longitudinal gridding result, and a longitudinal grid size optimization curve is drawn according to the comparison result; selecting a plane grid size and a longitudinal grid size with errors smaller than a threshold value, and adding the error of the plane grid size and the error of the longitudinal grid size to obtain a total error; selecting a combination of which the total error is still smaller than a threshold value, and generating a candidate grid size set; and selecting a grid size combination with the minimum total grid number from the candidate grid size set as an optimal grid size combination. According to the method, a quantitative basis is provided for determination of the grid size in geological modeling, and grid size optimization considering representation precision and the number of grids is realized.

The invention belongs to the technical field of magnetic positioning, and particularly discloses an RHM-CGA positioning algorithm based on an RHM fusion strategy, and the algorithm comprises the following steps: collecting the magnetic field data of a target magnet through a magnetic sensor array which is of a planar grid array structure; a sparrow search algorithm is used to process the magnetic field data to obtain a first position result, a CNN-GRU-Attention neural network is used to process the magnetic field data to obtain a second position result, and an objective function of the sparrow search algorithm and a loss function of the CNN-GRU-Attention neural network are established according to a magnetic field distribution mathematical model-magnetic dipole model of the target magnet; based on the first position result and the second position result, calculating a fusion position result through a weighting function; the weighting function depends on the Z-axis coordinates of the first position result or the second position result. The application range can be effectively expanded on the premise of ensuring the magnetic positioning precision.