259results about How to "Drawn precisely" patented technology

An electronic blackboard includes a display panel and a touch-panel, draws a line corresponding to a track formed by movement of the touched position on the displayed image, and erases an erroneously drawn line corresponding to a track specifying an operation other than drawing. In another aspect, an electronic blackboard includes a touch screen, a scroll unit for scrolling an image on the display screen when positions of multi-touch move in one same direction, and a page switching unit for detecting, after detection of multi-touch input, that a finger is moved away, and executing a process of returning the image on the display screen to a state before scrolling or a process of switching the image by one page in accordance with the moving direction of multi-touch positions, depending on whether the amount of movement of touch inputs is equal to or smaller than a threshold value.

This VSB lithography system includes a first, second and third aperture for forming a single electron beam in each of the rectangular opening portion that are provided, and draws a figure pattern using the single electron beam formed by passing the beam through the first, second and third aperture in sequence. Each of the first, second and third aperture has a mechanism for rotationally driving the aperture around an optical axis up to an arbitrary angle from 0 to 360°. Further, in the third aperture, a mechanism for varying the opening slit width of the rectangular opening portion is provided.

The invention relates to a corestone manufacture method, which comprises the following steps: (1) mold manufacture; (2) material preparation; (3) sand mixing; (4) molding; (5) pressurization; (6) electrode wire and pressure measuring pipe pre-burying in the corestone; (7) heating; (8) electrode lengthening wire welding; and (9) sealing. Compared with a physical model used at present, the invention has the advantages that indoor oil displacement experiments can be carried out under the condition of high pressure, the in-site production conditions can be simulated more accurately, oil-water distribution charts inside the model can be drawn more accurately, the oil-containing saturation change inside the corestone can be tracked in time, and the invention provides the scientific basis for the establishment of the development scheme.

A quantitative suction tip to be attached onto the tip of a suction nozzle 5 comprises a fixed volume chamber 12 with a predetermined volume. The fixed volume chamber 12 has a suction opening formed at a lower end thereof and a division wall 13 formed at an upper end thereof. The division wall 13 has a through hole 15 which has a smaller cross-sectional area than that of the fixed volume chamber 12. As a liquid fills the fixed volume chamber 12 and reaches the through hole 15, there is caused a change in the suction pressure which is detected to terminate a suction operation. Thus, a predetermined quantity of the liquid can be accurately drawn into the quantitative suction tip without being affected by e.g. the surface tension and viscosity of the drawn liquid or the wettability of the inner walls of the quantitative suction tip.

The invention provides a screen projection method and device and terminal equipment, and relates to the technical field of screen projection. The method comprises the steps that if a screen projectioninstruction is obtained, a real-time interface of a to-be-projected screen application program and equipment information of one or more receiving ends are obtained, first to-be-projected screen datacorresponding to all the receiving ends are obtained from the real-time interface according to the equipment information, and the first to-be-projected screen data are video streams, audio streams and / or user interface controls; and sending the first to-be-projected screen data to the corresponding receiving ends, so that each receiving end generates a corresponding display interface according tothe received first to-be-projected screen data. According to the embodiment of the invention, a screen projection mode with more abundant functions and more flexible operation can be realized.

A multi-exposure drawing apparatus for drawing a given pattern on a workpiece is provided. The apparatus uses an exposure unit with optical modulation elements arranged in a matrix. The apparatus comprises a first, second, and third memory, a coordinate transformation processor, a calculation processor, and an exposure-data generating processor. The first, second, and third memory respectively stores raster-data of the given pattern, first-coordinate data representing a position of each optical modulation element, and second-coordinate data representing a position of the exposure unit. The coordinate transformation is performed for the first-coordinate data. Address-data is calculated in accordance with a pixel size of the raster-data, and is based on the sum of the first and second coordinate data. Exposure-data generated by outputting the raster-data of the address-data is given to each of the optical modulation elements. The given pattern is drawn on the drawing surface as to the exposure-data.

The present invention provides a visual form drawing method, the drawing method comprises react to build a form component and create a visual form editor with redux management data flow; use the visual form editor to customize or externally import to create a form initial template; adjust the form initial template Layout and basic information, the user drags the operation object to the end of the operation, and returns to the form setting state at a certain time through the undo or restore operation; the form data is saved to the html file, which is parsed into a layout data flow file by JS. The present invention draws the form through the toolbar in the visual form editor, sets the overall style, and directly drags the form component to the page setting area and changes the component properties, so as to realize fast and accurate drawing of the standardized form, and avoid the problem of modifying the source code Hierarchical confusion; each operation of the adjustment step in the form drawing process is automatically saved, and the adjustment step operation is corrected by undoing or reverting the operation.

The invention relates to two systems which are an urban real-time traffic system capable of realizing privacy protection based on block chains of a public chain and an urban real-time traffic system capable of realizing vehicle monitoring based on block chains of a private chain. The urban real-time traffic system capable of realizing privacy protection based on the block chains of the public chain comprises a system center module, urban vehicles and a recorder module. The urban real-time traffic system capable of realizing vehicle monitoring based on the block chains of the private chain is additionally provided with a center which is responsible for managing identifiers of the vehicles. According to the invention, the block chain is adopted as a core technology, a record book of the block chain is utilized to store and record driving records of each automobile in a distributed manner, each automobile is recorded by adopting a mode of the automobile identifier in the record book, each identifier generates a random character string by adopting an encryption algorithm and varies in a timed manner, and privacy protection for an automobile owner or vehicle monitoring is realized according to the confidentiality of the identifiers. The recorder draws real-time traffic conditions according to data of the record book.

The invention discloses a measuring system and a measuring method for a power contour of a reader-writer antenna. The measuring system comprises a reader-writer arranged outside a microwave dark room, middleware, a rotary table controller, a sliding block controller, a host computer and a drawing printer, wherein an electronic tag, a rotary table, a horizontal guide rail, a bracket, two positioning sensors, the reader-writer antenna and a sliding block are arranged in the microwave dark room. The method reflects a reader-writer response electronic tag zone to a certain degree by measuring feedback points with the same power in a three-dimensional direction of the reader-writer antenna, so the method has deeper realistic meaning than a directional diagram. An electromechanical device ensures automatic performance of the measuring method, a testing environment provides free space and a test result becomes more persuasive and reliable. The measuring system and the measuring method have a reference value for the field application of a wireless radiofrequency recognition system and the layout of a tag.

The invention, which belongs to the technical field of computers, relates to a lane line drawing method and device and a storage medium. The method comprises: collecting lane line data; extracting a lane line based on depth learning and calculating three-dimensional scatter points of the lane line in a camera coordinate system; according to inertial measurement data and vehicle mileage data, calculating relative postures between the lane line images; on the basis of the relative postures between the lane line images, splicing the three-dimensional scatter points to obtain a lane line, and associating the spliced lane line to a corresponding GPS position; and clustering the spliced lane line and carrying out fitting on the clustered lane line. Therefore, the crowdsourcing data collection cost can be lowered while the high accuracy of the lane line drawing is ensured.

Disclosed herein is a semiconductor device, including: a first semiconductor region of a first conductivity type; a second semiconductor region having pairs of first pillar regions of the first conductivity type, and second pillar regions of a second conductivity type alternately provided; a third semiconductor region of the second conductivity type; a fourth semiconductor region of the first conductivity type; and control electrodes each provided within a trench through an insulating film, a sidewall of the trench being formed so as to contact each of the third semiconductor region and the fourth semiconductor region.

The invention discloses an operation procedure of a civil unmanned aerial vehicle simulation training system. The operation procedure comprises the steps of: entering selection of a trainee scene module when the civil unmanned aerial vehicle simulation training system is started; entering a corresponding training environment according to a scene mode selected by a trainee; selecting a civil unmanned aerial vehicle in need of training by the trainee; carrying out return-to-zero calibration on position of an operation rod of a remote controller; allocating operation modes by utilizing an optimized allocation mechanism of operation channels; deciding operation response through shifting the operation rod between maximum and minimum positions; automatically confirming linkage compatibility of channel allocation according to a driving program of the remote controller; if the linkage compatibility is not qualified, then reallocating the operation channel; if the linkage compatibility is qualified, then selecting a flight route; starting the flight simulation of the aerial vehicle after selecting the appropriate training route; automatically recording the flight situation in background if flight recording is selected after the flight; and evaluating flight level in real time if an evaluation scene is selected, generating evaluation result information, and presenting the evaluation result information to the trainee.

The invention provides an adaptive Loop subdivision surface drawing method based on an irregular region. According to the drawing method, based on an adaptive mode of the irregular region, the position of a control vertex is computed by a compute shader, an irregular original surface patch is divided into a plurality of regular sub surface patches according to the relationship between the current original surface patch and an adjacent original surface patch, a triangulation grid is reconstructed and drawn by a tessellation shader to obtain corresponding surface patches, and T cracks can be effectively eliminated. The position of the vertex of each layer in the triangulation grid can be accurately computed by the aid of the tessellation shader through division, so that all computed vertexes and normal vectors are as same as those of extreme Loop subdivision surfaces, hardware is drawn by the tessellation shader, the problems of huge memory and bandwidth of a global subdivision method are solved, and the Loop subdivision surfaces can be accurately drawn in real time.

The invention relates to a method for generating traffic safety road characteristic graphs on the basis of point-cloud. The method includes steps of 1), acquiring point-cloud data of a plurality of images of selected traffic regions by the aid of laser scanners; 2), preprocessing the point-cloud data; 3), importing preprocessed point sets into a CAD (computer-aided design) to hierarchically process the point sets and generating traffic road characteristic planar graphs; 4), converting the traffic road characteristic planar graphs in the CAD into ArcCIS (Arc geographic information system) formats layer by layer; 5), creating ArcGIS symbol libraries, automatically matching various map elements according to attributes of databases and completely generating the traffic safety road characteristic graphs. Compared with the prior art, the method has the advantages of speediness, simplicity, convenience, accuracy, reliability and the like.

The invention provides a closed fence drawing method and system. The method comprises the steps that a fence start point is marked on a tile map, and the fence start point is a corrected road point coordinate position on a road; click operations on the tile map are captured, a first optimal path is drawn, and the first optimal path is the optimal path between the coordinate position of each click operation and the coordinate position of the previous click operation; when the click operation is an end operation, the coordinate position of the click operation is used as a fence end point, a second optimal path is further drawn, and the second optimal path is the optimal path between the fence end point and the fence start point; a closed fence formed by the first optimal path and the second optimal path is obtained. The closed fence drawing method and system can enable users to conveniently, flexibly and accurately draw self-defined electronic fences.

The invention discloses a passive type moving target track mapping method based on compressed sensing. The method comprises the steps that firstly, a wireless sensor network is deployed and configured; secondly, a target tracking model is established; thirdly, a moving object is tracked; fourthly, the target track vector is solved. The advantage of the compressed sensing in the aspect of sparse recovery is utilized, the track of the target is accurately mapped only through a small number of observation data, mapping is finished only through one-time calculation, and the problem that due to frequent positioning in an existing algorithm, calculating expenditure is high is avoided. The moving target track mapping method is very suitable for tracking the track of targets in large-scale scenes where wild animals live, and high-precision target track mapping can be achieved.

The invention discloses a network topology layout method and apparatus. The method comprises the following steps: storing each two interconnected device nodes and a connecting relation thereof as a link, finding a main link according to the occurrence time of each device node in a stored link list, and for the two device nodes of any link in the main link, calculating a layout distance between thetwo device nodes according to the number of branch links connected with the two device nodes; then using the device node having the largest number of connected main links as a starting drawing node,and laying the main links in sequence according to the layout distance between the device nodes and the number of the main links connected with the drawing node; and finally, calculating the includedangles of the branch links on the surrounding of the device nodes according to the number of the branch links connected with the device nodes, and laying the branch links according to the included angles of the branch links on the surrounding of the device nodes. By adoption of the method and apparatus disclosed by the invention, the network topology structure can be accurately drawn, and the network topology structure is clearly displayed.

The invention discloses a power grid bird trouble map drawing method and a system based on a winter visitor migration route and a habitat. In the method, according to a user instruction, a power grid bird trouble map drawing area range is set; winter visitor migration route vector map layer data, winter visitor habitat (such as a water area, a wetland, a farm land, a village and a small town) vector map layer data, winter visitor habitat surrounding line tower coordinates and bird trouble happening frequency data are acquired; according to the acquired winter visitor migration route and habitat vector map layer data, GIS buffer analysis is carried out, GIS interpolation analysis is carried out on historical bird trouble fault data, corresponding thematic maps are obtained, the two maps are integrated, and reference bird trouble risk levels are ranked from low to high, and a power grid transmission line bird trouble map is finally generated and outputted. Important reference can be provided for management decision on anti-bird trouble systems such as an anti-bird sting and an anti-bird baffle arranged on the tower of the power grid, bird trouble tripping accidents can be effectively prevented from happening to the transmission line, and economic benefits are high.

The invention provides a control system of a lift door motor and a control method thereof. The control system comprises a microcontroller and an electromagnetic encoder, wherein the microcontroller is provided with a door width detection module, a door-opening control module and a door-closing control module; the door width detection module reads an initial signal of the electromagnetic encoder and calculates the number of rotation turns of a rotor shaft after receiving a door width detection signal, and reads a real-time signal of the electromagnetic encoder, calculates the width of a lift door and saves the width in a memory after receiving a door opening limit signal; the door-opening control module controls the opening of the lift door, calculates first real-time door width data of the lift door and draws a door opening speed curve; and the door-closing control module controls the lift door to be closed, calculates second real-time door width data of the lift door and draws a door closing speed curve under the condition of meeting door closing requirements. The control method is used for controlling the lift door motor by utilizing the control system. The invention can carry out door width detection on the lift door, draws the speed curve in real time and more exactly controls the lift door motor.

The invention provides an automatic planning land checking method. The automatic planning land checking method comprises the steps of: performing graphic layer management, obtaining a remote sensing image as the underlying graph, and establishing a graphic layer coordinate system through the underlying graph; performing planning data loading, loading planning data in the graphic layer coordinate system, separating point, line and surface elements of the planning data into different vector graphic layers, and loading to the underlying graph; performing track management, obtaining the position point generated by a real-time GPS signal, drawing a track curve in a track graphic layer according to the position point, fitting the terrain contour in the underlying graph through the track curve, generating the surface element from the closed track curve, and storing the surface element in a new track graphic layer; and performing automatic checking, and calculating the difference size and thedifference position of the surface element of the planning data graphic layer and the surface element generated by the track curve. By means of the automatic planning land checking method, the electronic device, the storage medium and the system provided by the invention, the planning land checking efficiency can be effectively increased; the checking cost can be reduced; and thus, effective technical support is provided for checking the planning land in our country.

The invention discloses a house type drawing method based on room splicing, and relates to the field of virtual house type design. The house type drawing method based on room splicing solves the problems in the prior art that the measurement of the thickness of an inner wall is imprecise and house type drawing is inaccurate. The method comprises the steps of firstly drawing a frame of an inner wall line of the first room with the inner wall line being reference in a plane mode and determining the quantity and positions of inner doors; then setting boundary data of rectangular door frames of the inner doors and drawing the rectangular door frames of the inner doors according to the set boundary data; continuing to draw other rooms to keep mutually independent dissociative and separated states of all the rooms; finally splicing and combining the rooms which share the same inner door through the rectangular door frame of the shared inner door and filling the space area between frame sides of two opposite inner wall lines of adjacent rooms. By measuring the length of the wall inner line of a single room and the distance of the door side and a wall corner point and according to the relationship of the door spacing after the rear doors of the rooms are merged, the thickness of the wall can be accurately calculated, and the thickness of the inner wall is accurately drawn.

The invention discloses a transfer station standard template drawing method and a transfer station construction method based on REVIT, and belongs to the field of BIM (Building Information Modeling) technology application. The invention provides the transfer station BIM construction method and the transfer station construction method based on the REVIT by aiming at the problems in the prior art that batch drawing and revision can not be quickly carried out since a great quantity of time needs to be cost for guaranteeing modeling accuracy, working efficiency is low, and learning cost is high. Each construction member of a preset steel structure transfer station is used, a data relationship among construction members is bound, and a steel structure transfer station template of a standardizedconstruction drawing and a quantity list is preset to make a preparation for parametric modeling, the finished steel structure transfer station drawing file is arranged and is cooperated with a re-designed steel structure transfer station BIM drawing process, and therefore, the steel structure transfer station BIM can be quickly established.

The invention provides an efficient accurate general soft shadow generation method. The framework process of the method includes: firstly, rendering a scene under a viewpoint, and rendering the three-dimensional coordinate information of each sampled pixel into a floating texture; secondly, arranging an oblique camera towards a surface light source quadrilateral at the position of each sampled pixel, rasterizing scene triangles possibly in camera view frustums to obtain the visibility information of the sampled point to a light source, and further obtaining a shadow value of the sampled point; and thirdly, rendering the scene again under the viewpoint by applying the shadow value generated in the previous step, and outputting rendering results to a screen. The method supports dynamic surface light sources and dynamic deformable scenes, does not need precomputation, and has the advantages of vividness, high efficiency, generality and the like.

The invention discloses an electrocardiogram drawing method and an electrocardiogram drawing tool. The method comprises the following steps: determining the horizontal length of an electrocardiogram drawing, and determining the longitudinal width of the electrocardiogram drawing; drawing an electrocardiogram context lattice on the electrocardiogram drawing of which the horizontal length and the longitudinal width are determined; drawing a longitudinal parting line and a horizontal parting line between adjacent leads on the electrocardiogram context lattice; drawing standard voltage icons at preset positions on the electrocardiogram context lattice; determining the starting position of each lead wave line; based on the starting positions, determining the horizontal position and longitudinal position of each sampling point in each lead wave line; and according to the horizontal position and longitudinal position of each sampling point in each lead wave line, drawing each lead wave line in each area formed by the longitudinal parting line and the horizontal parting line.

The invention relates to a cam in the machine manufacturing field and in particular relates to a hand-operated cam mechanism characteristic-curve drawing instrument. The hand-operated cam mechanism characteristic-curve drawing instrument is mainly composed of a positioning plate, an eccentric wheel, a positioning block, a ball slide bar, a preload device, a drawing board, a guide rail I, a guide rail II, a movable slider group, a base, a roller pin assembly and a synchronous transmission mechanism; the positioning plate is vertically connected with the base; the drawing board is connected with the guide rail II; the guide rail I is horizontally fixed in front of the positioning plate; a rack is connected with the guide rail II and engaged with a gear; the gear is coaxially connected with an upper synchronous pulley; a lower synchronous pulley is coaxially connected with the eccentric wheel; the upper synchronous pulley, the lower synchronous pulley and a synchronous belt are located behind the positioning plate; the positioning block is located under the guide rail I; the movable slider group is fixed in the positioning block and can be adjusted; the ball slide bar is located in the ball slider and capable of sliding up and down; the upper end of the ball slide bar is connected to the preload device, while the lower end of the ball slide bar is hinged to a pin; a rolling bearing is in rolling contact with the eccentric wheel.

The invention discloses an inertial platform residual stress release simulating method based on a finite element, which comprises the steps of: 1, modeling an initial platform entity, integrally obtaining an initial platform entity model by applying entity drawing software, then guiding the initial platform entity model into finite element simulating software; 2, modeling an air column, establishing initial platform peripheral air into an air column model; 3, assigning initial platform and air column material attributes, inputting the initial platform and air column material attributes according to the requirement on the finite element simulating software; 4, modeling an initial platform and an air column finite element grid, wherein two procedures of selecting a unit type and dividing the grid are included; and 5, coupling and analyzing an initial platform heat-structure, wherein two procedures of transient heat analysis and structure analysis are included: the transient heat analysis is as follows: a temperature cycle stress is loaded on the outer surface of the air column so as to provide heat conditions for the inertial platform residual stress release simulating analysis, andthe structure analysis is as follows: an initial platform transient heat analysis result is loaded to the heat-structure coupling analysis to obtain a rule of releasing the inertial platform residualstress with the temperature cycle stress.

The invention discloses a fully automatic sound velocity measuring instrument. An upper computer controller is taken as the core, a voltage effective value of a sound wave receiver are acquired through a data acquisition card, a stepper motor is driven to rotate through a single-chip microcomputer and a stepper motor driver, and a lead screw is driven to rotate by using the stepper motor so that the sound wave receiver can move so as to achieve automatic measurement of the output voltage effective value of the sound wave receiver at each point in a stationary wave field. Meanwhile, after the data are obtained, the output voltage effective values of the sound wave receiver at different locations are drawn into a two-dimensional cartesian coordinate graph, so as to obtain an intuitive relational graph of the aviation in the output voltage effective values of the sound wave receiver and locations of the sound wave receiver, and after the test, the data and graphs can be stored and outputted. Compared with the prior art, the invention eliminates the effect of return errors, achieves automation of the movement and data collection of the sound wave receiver, improves the measuring efficiency, and can save and output data.

The invention relates to arch bridge test-bed, comprises the stage board and two tower frame equipped on the stage board, each top of the tower frame has cable saddles, between which there are cords, on which suspend claw equipped; on the stage board which is between two tower frames the arch bridge model which is used to installation and experiment equipped. The invention provide a basic chance for opening comprehend, design and study types of experiments to the students, it can train proficient manager, inspector and surveillant in the numbers, let the students have chance to undertake the design and study types of experiments.

This VSB lithography system includes a first, second and third aperture for forming a single electron beam in each of the rectangular opening portion that are provided, and draws a figure pattern using the single electron beam formed by passing the beam through the first, second and third aperture in sequence. Each of the first, second and third aperture has a mechanism for rotationally driving the aperture around an optical axis up to an arbitrary angle from 0 to 360°. Further, in the third aperture, a mechanism for varying the opening slit width of the rectangular opening portion is provided.