31 results about "Grid drawing" patented technology

The present invention relates to a method for making combined embroidery. The method comprises the following steps: first, an absolute cross stitch grid drawing is made by extracting the cross stitch part of the combined embroidery with software; then, threads are added on a base cloth with the traditional cross stitch method according to grids on the drawing; after the cross stitch part is finished, a ribbon embroidery part is embroidered on the base cloth printed with silk net lines according to lines printed on the cloth; finally, a complete piece of combined embroidery is finished on the accomplishment of the ribbon embroidery part. The present invention has the advantages that the embroidering time of the combined embroidery is shorter than that of the traditional cross stitch, and the combined embroidery having stereoscopic effect combines the fine and smooth cross stitch and the stereoscopic and elegant ribbon embroidery; the finished product has ornamental and collection values.

The invention discloses an aluminum alloy wheel paint film adhesive force testing method, and relates to the aluminum alloy wheel paint film inspection technical field; the method mainly includes the steps of preparation of tools, grid drawing, inspection, determination and the like. The aluminum alloy wheel paint film adhesive force testing method is simple and easy to implement and high in inspection precision, and improves the qualification rate of products.

The invention discloses a method for testing the equi-voltage curve of a plate grid of a storage battery and relates to the field of storage batteries. The method is used for solving the technical problem that expected performance cannot be achieved during the design of the plate grid. According to the testing method disclosed by the invention, the plate grid is connected into a circuit of a testing device, a first testing point of a voltage measuring instrument is fixedly connected with the plate grid, a second testing point of the voltage measuring instrument tests voltages of different positions of the plate grid, test results are recorded, and the equi-voltage curve is drawn on a plate grid drawing. The test results can serve as an important basis for the design of the plate grid, so that the improvement on the design of the plate grid is facilitated, and the performance of products is improved.

The invention discloses a dynamic strain measurement method for drawing mechanical property tests of a film material. The method comprises the following steps: rectangular grid drawing; camera positioning; shooting sampling; extraction of grid nodes; calculation of 3D coordinates of the nodes and reconstruction of grid point cloud; division of a triangular unit; calculation of side length of the triangular unit; strain calculation. According to the operation steps, dynamic full-field strain distribution information of the film material in uniaxial drawing and biaxial drawing mechanical property tests can be measured, deformation rules of the film material can be obtained precisely, mechanical properties of the film material can be mastered accurately, important material parameters are provided for design and analysis of a film structure, and design precision and use safety of the film structure are guaranteed. The dynamic strain measurement method has the advantages of being non-contact, non-damage, simple to operate, high in automation degree, efficiency and measurement precision, low in cost and the like.

The invention relates to an English teaching plate comprising a main plate, an auxiliary plate and a line drawing device. The main plate is adjacent to the auxiliary plate, and the auxiliary plate is horizontally provided with a plurality of transverse shafts and a plurality of cylinders arranged on the transverse rods in a penetrating mode; windows are arranged in the cylinders, and the cylinders are internally provided with word straps capable of rotating around the transverse shafts. The line drawing device comprises a horizontally-arranged track ruler and a line drawing unit arranged on the track ruler in a sleeving mode, the line drawing unit can move along the track ruler so as to draw four-line grids on the main plate, and the track ruler can vertical move along the main plate and is provided with a plurality of mutually-parallel gaps with equal intervals. Through arrangement of the line drawing device capable of vertically moving, the multiple four-line grids can be drawn on the English teaching plate by utilizing one line drawing device, and the problem that four-line grid drawing wastes time and energy in English teaching is solved; and through arrangement of a frame externally-extending part with the dust collection function, the purpose of reducing dust and personal harm is achieved.

A drawing tool is provided for assisting artists in transcribing images onto a blank medium. The device is a drawing frame of geometrical shape and has a plurality of notches disposed along the outer perimeter length. These notches are channels cut out of the edge, forming protruding segments between any two notches. Protruding segments are used as anchor sites for a series of elastic threads. A portion of the threads is wound around protruding segments disposed on opposing dies of the frame body, thereby stretching the elastic thread across the front surface of the frame body. A first grouping of the threads is secured in parallel lateral alignment, while a second group is secured in a parallel longitudinal alignment. This configuration presents a grid pattern that can be laid over an image or blank piece of paper to serve as a guide for transcription.

The invention discloses an intersection anti-collision warning system based on a pedestrian tracking algorithm, which comprises a monitoring unit, a collision judgment unit, an early warning unit and a grid drawing and early warning rule configuration system, and is characterized in that the monitoring unit comprises a camera and a millimeter wave radar for monitoring real-time information of pedestrians and vehicles; the collision judgment unit comprises an edge calculation box integrated with a target detection algorithm and a pedestrian tracking algorithm and an industrial control host, and can calculate whether collision occurs or not according to the information acquired by the monitoring unit; the early warning unit comprises light-emitting floor tiles, an LED display screen and a directional sound box and is used for sending out early warning information to vehicles and pedestrians possibly colliding with each other. The grid drawing and early warning rule configuration system can perform grid drawing on a camera identification area and perform configuration and modification on an early warning rule. According to the invention, early warning can be given to pedestrians and vehicles in advance to reduce the probability and intensity of traffic accidents when the pedestrians do not comply with traffic rules or the sight is blocked and the like.

A drawing tool is provided for assisting artists in transcribing images onto a blank medium. The device is a drawing frame of geometrical shape and has a plurality of notches disposed along the outer perimeter length. These notches are channels cut out of the edge, forming protruding segments between any two notches. Protruding segments are used as anchor sites for a series of elastic threads. A portion of the threads is wound around protruding segments disposed on opposing dies of the frame body, thereby stretching the elastic thread across the front surface of the frame body. A first grouping of the threads is secured in parallel lateral alignment, while a second group is secured in a parallel longitudinal alignment. This configuration presents a grid pattern that can be laid over an image or blank piece of paper to serve as a guide for transcription.

The invention provides a veneering on-line grid making device based on flexible manufacturing. The veneering on-line grid making device based on flexible manufacturing comprises a grid drawing mechanism and a reciprocating punching mechanism, and four support legs are separately welded at four corners of the bottom end surface of a worktable. The problems that label type veneering products produced by an existing flexible veneering manufacturing machine are mostly subjected to partitioning treatment of labels in a mode of direct glue sealing and then cutting, when the labels are taken and usedin hands of consumers, the labels are easily damaged due to the fact that the labels adhere to one another or are not cut thoroughly and taken thoroughly when the labels are taken and used are solved. Due to the fact that the grid drawing mechanism is arranged, a drawing motor can conduct power transmission through a drawing transmission shaft coupled to the output end, and when the drawing transmission shaft rotates, a driven transmission shaft can be driven by a belt attached to the outer circumferential face in a surrounding mode to synchronously rotate so as to drive two first guide rodsto rotate.

The embodiment of the invention provides a Beidou grid drawing method and device based on WebGL, equipment and a computer readable storage medium. The method comprises the steps of obtaining data of a Beidou grid needing to be drawn based on an asynchronous thread calling mechanism; and rendering and updating the Beidou grid which needs to be drawn currently according to the data. In this way, efficient self-adaptive calculation of the Beidou grid of the area needing to be drawn can be achieved, and the drawing efficiency is improved.

The invention provides a text string recognition method and device and electronic equipment. A target image is divided (also called grid drawing), and channel feature maps (used for representing positions of text strings associated with image blocks corresponding to the channels) of S * S channels are determined according to image feature maps of the target image; Each text string in the target image is mapped to different channels to learn the positions of the text strings in a grid drawing mode, and finally text recognition is realized on the premise of not using matting operation, so that compared with the matting operation, the calculation amount can be greatly reduced.

The invention discloses a grid drawing and central bar grid processing method for mainstream and tributary intersections of a complex river network. By classifying modes of mainstream and tributary intersections of the complex river network, grid processing method types at the position of the intersections are determined according to the mainstream and tributary intersection angles on the basis offully meeting the riverway trend, and thus a regular grid that meets the calculation conditions is generated; through the drawing of a grid line, the complex terrain of a central bar is processed, sothat the central bar grid is not generated, the calculation divergence problem that may be caused by a large central bar with a complex terrain in the actual calculation process is solved, at the same time the calculation efficiency is improved, and the hardware consumption is reduced. According to the grid drawing and central bar grid processing method, the processing of grids of the complex river network mainstream and tributary intersections and central bar grids is achieved based on an existing regular grid drawing tool, and powerful support is provided for value calculation of the regular grid.

The invention discloses a method for local optimization and density increased drawing of river two-dimensional water quality numerical simulation model computational grids. Through the method for local optimization and density increased drawing of grids, local optimization and density increasing of special computation positions of two-dimensional regular fine grids according to any proportion canbe realized, to satisfy that in actual numerical simulation calculation process, grids in different fine degrees are needed for different computational positions and different computation tasks, and improve computation efficiency and reduce hardware cost. Based on existing water quality model numerical simulation grid drawing methods and tools, simple and efficient two-dimensional water quality model computational grid optimization control is realized, and the method provides data support for numerical computation which is based on regular grids.

Disclosed is a four-line grid drawing device. The four-line grid drawing device is characterized by comprising a handle and four chalk cases which are connected with the handle. By means of the four-line grid drawing device, a line can be rapidly and accurately drawn, and time can be saved.

The invention relates to a grid drawing device for an integrated intelligent painting and calligraphy table. The device comprises a supporting structure and a lamp box, and the supporting structure is used for supporting the lamp box and is fixedly arranged in the edge of the painting and calligraphy table. The supporting structure comprises an outer column, an inner column and a driving mechanism. A guide rail device is arranged on one side of the outer column and used for lifting the outer column, an outer rack is arranged on the surface, corresponding to the guide rail device, of the outer column, and a strip-shaped groove is formed along the outer rack. Guide rails and inner teeth are arranged on the two sides of the inner column corresponding to the outer column respectively, a sliding block is fixed to the inner wall of one end of the outer column and used for lifting of the inner column, and an inner rack is arranged on the side, corresponding to the strip-shaped groove of the outer column, of the inner column. The inner and outer column racks are driven by large and small connecting gears and drive the lamp box to ascend and descend inside and outside the table.

The invention discloses a massive-grid coding method of large-scale calculation of a basin. large-scale complex river channel mainstreams / tributaries and river channel courses of the basin are distinguished through grid coding, then unified numbering is carried out according to spatial topological relationships of grids, and realization of completing drawing of the massive grids at once in cases where existing grid drawing technology methods are limited by computer hardware memory is facilitated. According to the method, simple and highly efficient coding of the large-scale massive grids is realized, and technical support is provided for large-scale massive-grid drawing based on regular grids.

The invention discloses a grid drawing and central bar grid processing method for mainstream and tributary intersections of a complex river network. By classifying modes of mainstream and tributary intersections of the complex river network, grid processing method types at the position of the intersections are determined according to the mainstream and tributary intersection angles on the basis offully meeting the riverway trend, and thus a regular grid that meets the calculation conditions is generated; through the drawing of a grid line, the complex terrain of a central bar is processed, sothat the central bar grid is not generated, the calculation divergence problem that may be caused by a large central bar with a complex terrain in the actual calculation process is solved, at the same time the calculation efficiency is improved, and the hardware consumption is reduced. According to the grid drawing and central bar grid processing method, the processing of grids of the complex river network mainstream and tributary intersections and central bar grids is achieved based on an existing regular grid drawing tool, and powerful support is provided for value calculation of the regular grid.

The invention discloses a method and a device for drawing a deformable snowfield grid. The method comprises the following steps: calculating a distance field texture map between an initial snowfield grid and a static object grid; clustering the vertexes of the dynamic object grid to determine a bounding ball of each vertex cluster, wherein the bounding balls of all clusters form a bounding body of the dynamic object grid; pre-drawing a current snowfield grid to obtain a depth map and a geometric normal map with the same dimension; calculating snowfield deformation and updating a deformation map according to the depth map and the geometric normal map corresponding to the current snowfield grid, the bounding volume of the dynamic object grid and the dynamic object transformation matrix; performing down-sampling on the deformation chartlet for multiple times to obtain marked deformation area chartlets of different grades, and calculating that when any edge of a triangular patch of the current snowfield grid intersects with the marked deformation area chartlets, performing subdivision on the triangular patch. According to the deformation map or the distance field texture map, displacement adjustment in the normal direction is carried out on the snowfield piece elements, so that deformation of the current snowfield grid is achieved.

The invention relates to a grid drawing method based on map area boundary GPS coordinates, and the method comprises the steps: a boundary line segment is taken as a reference in an area, a grid distance drawing grid in the area is set according to requirements, and the further selection and selection of the grid are carried out; the overall difference of the map can be embodied; each area can be further described according to specific purposes and requirements; according to the technical scheme, the characteristics in each area are displayed more specifically, the refinement and differentiation of the areas can meet the requirements of people more conveniently, the broadening of some areas also omits the complexity of drawing a wide and thin map by a map maker, and the characteristics of different areas in the whole map are highlighted clearly.

The invention relates to the technical field of hydrological forecasting, and discloses a flood hydrograph forecasting man-machine cooperation interaction method, which comprises the following steps: S1, introducing loading; s2, initializing and generating a web version grid drawing according to the size and color of an actual paper grid; s3, solving rainfall and flow series by the real-time rainwater condition data interaction substation, solving a base value of a water level series, subtracting the base value from the water level series to generate a new water level series, and adding the base value back in water level reading or forecasting. Graphics interaction processing technologies such as a click addition forecast point drawing technology, a forecast point dragging modification technology, a rubber band connection technology, a map sheet scaling technology, a grid width and height increase and decrease technology and various element longitudinal scale custom are adopted to carry out manual intervention on flood forecast intermediate links; knowledge and experience of experts and forecaters are fully utilized to carry out comprehensive judgment, so that the flood forecasting precision is effectively improved, and a final forecasting result more conforming to the actual situation is obtained.

The invention discloses an automatic optimization design system for the aerodynamic configuration of a hypersonic flight vehicle. Comprising the following steps: presetting parameterization design to generate a CST function of an aircraft profile, and obtaining values and incoming flow conditions of all design variables contained in the function; according to given values of the design variables, the level number of each design variable is counted, and a sample library of complete factorial design is generated; estimating aerodynamic coefficients of the samples in the sample library by adopting a Newton method and a cone cutting / wedge cutting method; generating a data point file and a model file corresponding to the shape of the aircraft; calling grid drawing software to automatically generate an unstructured grid file; uploading to a terminal to carry out CFD calculation; and carrying out multi-factor variance analysis on pneumatic data of all samples, constructing an agent model on the basis of the multi-factor variance analysis, and displaying an optimization result in a visual window. According to the method, sample preparation and optimization can be automatically completed, the process is simplified, rapid and automatic modeling and optimization of various aircrafts can be realized by changing the CST function, and the method has good expansibility.

The invention relates to the technical field of grid drawing devices and discloses a paper grid drawing device which comprises a frame component; the frame component is provided with a graduated scaleand comprises four bar frames which are sequentially connected to form a square; the top surface of each bar frame is provided with multiple groups of positioning columns along a long edge of each bar frame; the positioning columns can slide along the long edge of each bar frame; each bar frame is provided with a limiting mechanism capable of being used for limiting movement of corresponding positioning columns; a group of adjacent bar frames in the frame component is provided with dyeing boxes respectively; each dyeing box is internally provided with a rotary shaft component; each rotary shaft component is sequentially provided with multiple groups of pressure wires, corresponding to adjacent positioning columns one to one, in a long edge direction of the corresponding bar frame; and oneend of each pressure wire sequentially penetrates through the corresponding dyeing boxes and the corresponding positioning columns and is hanged on the positioning columns of an opposite bar frame. The paper grid drawing device provided by the invention can realize the purposes of rapidly drawing grids on writing paper and being adjustable in size of the grids.

The invention provides a scheme for controlling the state of a game role by using terrain masks, which is characterized by comprising the following steps of: S1, performing grid drawing on the terrain masks of the game, and enabling each grid to correspond to a single mask; s2, marking various masks according to grid coordinates; s3, storing the masks in a file and outputting the masks; s4, reading out the mask value in the file when the game end loads the game, and setting a trigger event so as to realize the change of the behavior and the state of the game role; according to the method, the behavior and state change of the game role can be triggered under the action of the terrain mask.

The invention discloses cross-grid detection equipment. The equipment comprises a body. The body is provided with: a grid drawing mechanism, wherein the grid drawing mechanism comprises a cutting knife and a cutting knife driving assembly, and the cutting knife driving assembly is connected with the cutting knife and can drive the cutting knife to draw grids on the surface of a product to be detected; an adhesive tape pasting mechanism used for supporting an adhesive tape roll, unwinding the adhesive tape roll and rolling the adhesive tape on a gridding area on the surface of the to-be-detected product; an adhesive tape tearing mechanism comprising a clamping assembly and a clamping driving assembly, wherein the clamping assembly is used for clamping the adhesive tape pasted on the to-be-detected product, and the clamping driving assembly is used for driving the clamping assembly to tear off the adhesive tape from the to-be-detected product; and a laser detection mechanism used for carrying out laser detection on the gridding area on the surface of the to-be-detected product with the adhesive tape torn off. According to the cross-grid detection equipment, the operations such as automatic grid drawing, automatic adhesive tape pasting and automatic adhesive tape tearing of the to-be-detected product can be achieved, the marking position and the marking depth are unified, and the cross-grid detection equipment has the advantages of being reasonable in structure, high in detection efficiency and high in detection precision.

The invention relates to a complex structure aerodynamic thermal environment analysis method and system based on hybrid grids, and the method comprises the steps: carrying out the geometric pretreatment of a to-be-calculated model and an external field before carrying out CFD numerical calculation; selecting a surface grid cell type, setting surface grid cell parameters, and performing geometric surface grid drawing; volume grid drawing is carried out to form a hybrid grid; based on the hybrid grid, performing aerodynamic thermal environment numerical simulation; grid optimization is carried out based on an aerodynamic thermal environment numerical simulation result; carrying out aerodynamic thermal environment numerical simulation again based on the optimized grid, judging whether a simulation result meets requirements or not, and if not, continuing to optimize the grid; and if yes, considering that a convergent aerodynamic thermal environment result has been obtained. The method is used for improving the efficiency of thermal environment numerical simulation.

The invention discloses a method and a system for drawing an electronic map grid in a grid data system. The method comprises the following steps of: drawing a primary polygonal grid boundary of each next level in a polygonal grid boundary of a current level of an electronic map based on boundary data of each next level; searching a first target intersection point and a second target intersection point; an edge passing through the first / second target intersection point or an extension line of the edge extends out of the boundary of the current-level polygonal mesh to serve as a first / second edge of a quadrangle to be drawn, and a connecting line between the first edge and the second edge and the end parts located out of the boundary of the current-level polygonal mesh serves as a third edge of the quadrangle; a connecting line between the first edge and the second edge is used as a fourth edge of the quadrangle, and the fourth edge is completely positioned in the polygonal grid of the next level; performing polygon combination on the polygon mesh of the next level and the quadrangle to obtain a large polygon; and cutting off a non-overlapping region of the large polygon and the current-level polygonal mesh, and taking the non-cut partial region in the large polygon as a next-level target polygonal mesh.

The invention relates to the technical field of numerical simulation, in particular to a quick prediction method for hydrodynamic performance of a two-dimensional airfoil profile, which comprises thesteps of performing modeling and mesh generation on a two-dimensional airfoil through Python; writing the grids of the two-dimensional airfoil profile into a block MeshDict file under a correspondingsystem; setting a boundary condition, wherein the boundary condition is used for calculating a lift-drag coefficient and a surface pressure coefficient of the airfoil; calling OpenFOAM by using a bashscript to carry out continuous calculation to obtain the two-dimensional airfoil hydrodynamic performance parameters; and exporting the two-dimensional airfoil hydrodynamic performance parameters. According to the method, manual modeling and grid drawing are not needed, time is greatly saved, an instruction does not need to be input manually, the OpenFOAM can be continuously solved, a post-processing result does not need to be exported manually, manual data entry is avoided, and design automation is achieved.

The invention provides an auxiliary teaching device with a novel structure for mathematics teaching, which relates to the technical field of teaching auxiliary equipment. The device comprises a base and anauxiliary part. The base is of a rectangular plate-shaped structure, and four universal wheels are mounted at the bottom of the base; a rotating seat is welded to the base, a supporting rod is rotationally connected to the rotating seat, and a display board is rotationally connected to the supporting rod. Through the arrangement of the LED lamps, the LED lamps are of a rectangular structure, the distance between every two adjacent LED lamps is 5 cm, and the LED lamps installed in a linear array form an auxiliary structure during drawing together, so that a ruler can be matched with the LED lamps to achieve grid drawing, and the problems that firstly, although supporting and adjusting can be achieved, the floor is easily damaged in the adjusting process; secondly, the attention of students cannot be attracted through the structure; and finally, the display range is relatively small can be solved.