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81results about How to "Accurately draw" patented technology

Stylus tip device for touch screen

A writing or drawing tip device for attachment to a touch screen stylus or handle has a rigid body of conductive material with a forward end mandrel having a rounded or elliptical tip, at least one layer of compressible material extending over the tip to produce a deformable rounded tip, and a retaining device which secures the compressible layer to the body at a location to the rear of the rounded tip. The deformable tip is applied to a touch screen to develop a contact patch between the compressible material layer and screen sufficient to trigger an input on the screen, with the amount of force applied to the tip determining the size of the contact patch.
Owner:DUNAGAN KELLY ALLAN

Soft soil area underground continuous wall leakage detecting system

The invention discloses a soft soil area underground continuous wall leakage detecting system, solves such defects as complex construction, difficult measurement and lower accuracy of measured results, and measures specific positions of leakage points more accurately. The transport process of underground ions and the gathering process of the underground ions are observed in real time, so that the specific positions of the leakage points can be obtained more quickly and accurately. The soft soil area underground continuous wall leakage detecting system relates to a underground continuous wall, an observation well, a precipitation well, a soft soil layer, an aluminum electrode, an electrifying device, an electrifying device positive pole, an electrifying device negative pole, an in-pit ground, an out-pit ground, the leakage points, aluminum ions, a sampling device, a slide cover, a bracket, an opening cylinder, a gauze, a separation plate, a round hole, a sensor, a circuit, a circuit fixator, a circuit negative pole and an acquiring system. The underground continuous wall is not limited by thickness and depth. The observation well is used for observing change of an underground water level on the outer side of a foundation pit; the gap and the depth of the observation well are determined according to actual engineering; and the observation well also can serve as a foundation pit outer side precipitation well. The precipitation well is a foundation pit inner side precipitation well, and can be used for observing a underground water level on the inner side of the foundation pit. The soft soil layer is a soil layer suitable for an electroosmosis method.
Owner:ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Multifunctional drawing equipment for artistic designing

The invention discloses multifunctional drawing equipment for artistic designing. The multifunctional drawing equipment comprises a table body, a drawing plate with the adjustable angle is arranged on the upper surface of the table body, and a transverse dividing ruler and a longitudinal dividing ruler are arranged on the drawing plate; a drawing display board is arranged at the back end of the table body, a drawing clamp is arranged at the upper end of the drawing display board, and a drawing pressing strip is arranged below the drawing clamp; and a rotating display table for dynamically displaying artistic work is arranged on the left side of the table body. According to the multifunctional drawing equipment, through the angle adjustment function of the drawing board, different users can conveniently adjust the angles; through the transverse dividing ruler and the longitudinal dividing ruler, the coordinate value of any point on the drawing board can be accurately determined; and through the drawing display board, a facsimile drawing needing to be displayed can be stably pasted to the position in front of the users. By means of the rotating display table, the facsimile artistic work can be subject to dynamic rotation display, the capacity of capturing the work characteristic by a drawing learner in the dynamic state can be trained, and the creation inspiration of the learner can be better stimulated in the dynamic state.
Owner:UNIV FOR SCI & TECH ZHENGZHOU

Traffic accident road base map information processing method based on topographic map and image

The invention relates to a traffic accident road base map information processing method based on a topographic map and an image. The method comprises a first step of pre-processing topographic map data, a second step of pre-processing image data, a third step of matching the topographic map data processed by the first step and the second step with the image data, a fourth step of selecting various road information on the topographic map data and the image data according to set code requirements and automatically generating a road base map, and a fifth step of revising the road base map through field investigation and plotting. Compared with the prior art, the traffic accident road base map information processing method based on the topographic map and the image has the advantages of being high in mapping precision and full in data covering and the like. The data is easy to transfer and store, and traffic accident management time can be shortened.
Owner:TONGJI UNIV

Automatic aperture control device and automatic aperture control method of full HD (High-Definition) camera

The invention discloses an automatic aperture control device and an automatic aperture control method of a full HD (High-Definition) camera. The automatic aperture control device comprises a CMOS (Complementary Metal Oxide Semiconductor) sensor, an operation module and auxiliary equipment which are connected in sequence. The operation module comprises a frame brightness calculated value calculation module, an actual brightness value calculation module and a brightness difference calculation module, and is used for removing the brightness gain from the brightness calculated value of the frame and calculating the actual brightness value of the frame for aperture control. With the device and the method, the influence of the exposure and the gain value in the CMOS sensor on the aperture control is eliminated, the aperture control is accurate, the implementation method is simple and the cost is reduced.
Owner:北京博研高科技术有限公司

Simplified road net model orientated real-time road condition information acquisition system on basis of GPS (global positioning system) terminal

The invention provides a simplified road net model orientated real-time road condition information acquisition system on the basis of a GPS (global positioning system) terminal, and belongs to the field of road information acquisition. In the simplified road net model orientated real-time road condition information acquisition system, GPS positioning information of a car is acquired by the GPS terminal in real time; aiming at cars from different precursor node directions, time Ts when a car travels to a start node of a road section S and time TE when the car travels to an end node of the road section S are respectively judged and recorded, time difference value T from the time at the start node of the road section to the time at the end node of the road section is computed according to a formula T=TE-Ts, the time difference value T is taken as the travel time on the road section, and the travel time and numbers of corresponding precursor nodes are transmitted to a server; the travel time on the road section S is periodically collated by the server, average time of the travel time on the road section S of the cars from different precursor node directions in a period is computed, so that time information of the road section S is updated. The simplified road net model orientated real-time road condition information acquisition system on the basis of the GPS terminal is low in data acquisition volume and small in transmission quantity, and can obtain the latest road condition information of the current road net accurately in time.
Owner:CHONGQING UNIV

Scribing combined tool for pasting strain gage of fuel assembly

ActiveCN104827456AEasy marking and positioningEasy alignmentOther workshop equipmentEngineeringStrain gauge
The invention discloses a scribing combined tool for pasting a strain gage of a fuel assembly. The combined tool is used for scribing on a guide tube of the fuel assembly and comprises guide rods, a scribing block, scribing screws and a positioning plate. The scribing block is provided with a guide rod through hole and a guide tube through hole which are parallel to each other, the scribing block is further provided with three scribing through holes which are communicated with the guide tube through hole, the center line of the scribing through hole in the middle intersects with the center line of the guide tube through hole, and the distance between the center lines of the two scribing through holes in the two sides is the same as the width of the strain gage. The scribing screws are arranged in the scribing through holes, the tips of the scribing screws are close to the guide tube through hole, and the positioning plate is mounted on the guide tube. The combined tool is designed special for the fuel assembly, the datum line for pasting the strain gage can be scribed at the position needing to be scribed of the guide tube of the fuel assembly conveniently, quickly and accurately through the combined tool, accurate pasting of the strain gage can be guaranteed, and a foundational guarantee is provided for the accuracy of test data.
Owner:GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS

Integrated micro-fluidic chip for detecting bacteria total amount and bacterial spore amount

The invention discloses an integrated micro-fluidic chip for detecting the bacteria total amount and the bacterial spore amount and application thereof. The integrated micro-fluidic chip for detectingthe bacteria total amount and the bacterial spore amount comprises two independent channels which are separately used for an ATP bioluminescence method and DPA fluorescence detection, a sample is divided into two parts after entering the channels, one part passes through a splitting decomposition area, a washing area and a reaction area, the other part passes through a splitting decomposition area, a washing area, a reaction area and a fluorescence excitation area, and finally the bacteria total amount and the bacterial spore amount are measured and determined by an optical detection system.The integrated micro-fluidic chip for detecting the bacteria total amount and the bacterial spore amount can be operated in a one-button mode, has the advantages of integration, high sensitivity and the like, and can rapidly, conveniently and simultaneously detect the bacteria total amount and the bacterial spore amount.
Owner:BEIHANG UNIV

Mathematical teaching blackboard

The invention belongs to the technical field of teaching aids, and provides a mathematical teaching blackboard. The mathematical teaching blackboard comprises a blackboard body, wherein rails are arranged on the upper and lower sides of the blackboard; a first vertical rod and a second vertical rod which are connected with the two rails in a sliding manner are arranged between the two rails in a stretching over manner; the second vertical rod can slide circumferentially; a circle drawing cross rod and a line drawing cross rod which can rotate up and down are arranged on the first vertical rod in a sliding manner; a chalk fixing frame is arranged on the circle drawing cross rod; an auxiliary line drawing cross rod capable of rotating up and down is arranged on the second vertical rod in a sliding manner; a blackboard eraser is arranged on one side, which is opposite to the line drawing cross rod, of the second vertical rod; the first vertical rod is of a telescopic rod structure, and two ends of the first vertical rod are hinged to sliding combination parts between the first vertical rod and the rails; and vertical rod slots are formed in the left and right sides of the blackboard body. The mathematical teaching blackboard provided by the invention occupies a small space and is convenient to use; a teacher does not need to carry complicated drawing tools; and the blackboard drawing is more accurate, and the blackboard is more convenient and quicker to erase.
Owner:康龙世界游乐有限公司

Automatic drawing teaching aid used on blackboard

The invention discloses an automatic drawing teaching aid used on a blackboard. The automatic drawing teaching aid comprises a pen clamping component, a frame component, a longitudinal transmission component and a horizontal transmission component; two vertical frames are firmly connected with two horizontal frames; three hooks for hanging the blackboard are welded onto an upper horizontal frame; the upper horizontal frame and a lower horizontal frame are separately provided with an abrasion-resistant sliding strip; a left vertical frame and a right vertical frame are separately provided with a magnet in an embedding manner for being attracted onto a surface of the blackboard; a plate IV and a plate V are separately provided with an abrasion-resistant sliding block; a horizontal transmission motor I drives a lead screw I to rotate to drive the plate IV which is connected through threads and the plate V which is connected through a lead screw II and is guided through a polish rod I to horizontally move along the abrasion-resistant sliding strips; a longitudinal motor II drives the lead screw II to rotate, so that a sliding block which is connected through threads moves longitudinally through guiding of a polish rod II; one end of a pen rod is clamped firmly on an upper end of a sliding groove through a steel ball; an electromagnet is electrified to attract and press a spring to lift the pen; the other end of the pen rod is provided with a pen pressing nut for guiding the pen and adjusting force applied to the blackboard by pressure of the writing pen; and when the pen is lifted, a linear pushing rod motor is electrified to clamp a spring pressing plate, so that the pen cannot be pressed out. The automatic drawing teaching aid has the advantages that double-fixing is realized through the magnets and the hooks; drawing is performed on the blackboard; and teaching effects are improved.
Owner:DALIAN JIAOTONG UNIVERSITY

Auxiliary teaching device for drawing curve chart

The invention discloses an auxiliary teaching device for drawing a curve chart. The auxiliary teaching device comprises a drawing board. A frame is fixedly connected to the front wall of the drawing board. A first cavity is formed in the lower end of the frame and internally provided with a first threaded rod, wherein the first threaded rod is horizontally arranged. The end of the first threaded rod is connected with the inner side wall of the first cavity in a rotary manner. A first moving block is connected to the first threaded rod in a threaded manner. A first sliding opening is formed inthe inner top wall of the first cavity. A first connecting rod is fixedly connected above the first moving block. The top end of the first connecting rod penetrates the first sliding opening, extendstoward the outside of the first cavity and is fixedly connected with a first laser lamp. According to the auxiliary teaching device, positions of the first laser lamp and the second laser lamp are adjusted according to coordinates of drawing points; intersection points of light rays transmitted by the first laser lamp and the second laser lamp are the points marked in the drawing process; the curve chart can be drawn on the drawing board quickly; and in addition, drawing is conducted precisely, and drawing efficiency is improved.
Owner:杨先平

Device and method for calibrating movement speed of elevator speed limiter

The invention provides a device for calibrating the movement speed of an elevator limiter. The calibration device comprises a driving speed regulation module, a first movement testing module, a second movement testing module, a data processing module, a speed measurement module and a displaying module, wherein the data processing module is used for receiving the signals of the first movement testing module and the second movement testing module in real time and controlling the driving speed regulation module, the displaying module is connected with the data processing module, the first movement testing module and the second movement testing module are respectively connected with the data processing module through signals, and the driving speed regulation module is connected with the data processing module through signals. The device for calibrating the moving speed of the elevator limiter solves the problem that traditional manual-operated calibration is inaccurate, large in calibration error and low in calibration precision. Meanwhile, the device for calibrating the movement speed of the elevator limiter is simple to operate and convenient to carry and has wide application prospects. Further, calibration reports can be obtained immediately after calibration. The invention further provides a method for calibrating the movement speed of the elevator limiter. With the method, reliable and accurate calibration results can be obtained rapidly, and the calibration quality of the elevator speed limiter is improved.
Owner:SHUNDE BRANCH GUANGDONG INST OF SPECIAL EQUIP INSPECTION & RES +1

Method of testing wind load of 1000kV ultra-high voltage substation framework through wind tunnel experiment

InactiveCN110207945ASimple processThe steps are comprehensive and detailedAerodynamic testingUltra high voltageWind field
Disclosed is a method of testing a wind load of a 1000kV ultra-high voltage substation framework through a wind tunnel experiment, which relates to a method of testing a wind load and aims to solve the technical problem of low accuracy in calculating the wind load of the 1000kV ultra-high substation framework. The method comprises: preparing a model satisfying a blocking ratio of a wind tunnel, and comparing a cross section of an average wind speed measured at a section of the wind tunnel experiment and a cross section of a turbulivity respectively with code values in Load Code for the Designof Building Structures to determine accuracy of a simulated wind field; checking accuracy of a high-frequency force measuring balance through absolve values of a base shear force of the model in directions X and Y at 0 or 90 DEG of the high-frequency force measuring balance, then performing the wind tunnel experiment under each wind direction angle, representing the measured base shear force of the model and bending moment with dimensionless coefficients and obtaining a pneumatic force coefficient and a shape coefficient so as to calculate the value of the wind load. Using a section model, themethod can determine distribution ratio of the wind load of the overall framework and improve calculation accuracy, such that it can be applied in the design of a lattice form high-rise tower structure.
Owner:SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP

Road base map information processing method applicable to rapid traffic accident disposing

The invention relates to a road base map information processing method applicable to rapid traffic accident disposing. The road base map information processing method comprises the steps of: 1) collecting coordinate information of a base road through a total station, and sending the coordinate information to a computer; and 2) generating base road base map symbol information according to a road base map generating method by the computer; and connecting by drawing, thereby generating a road base map. Compared with prior art, the road base map information processing method applicable to rapid traffic accident disposing has the advantages of being beneficial to shortening traffic accident disposing time, high in mapping accuracy, complete in data coverage and the like.
Owner:TONGJI UNIV

Hyperbolic definition demonstration and curve drawing instrument

The invention discloses a hyperbolic definition demonstration and curve drawing instrument. According to the invention, hyperbolic internal rules and parameter relationships can be visually expressedthrough a demonstration process; the moving track of the moving point can be directly drawn into an image; drawing can be carried out on a raw material with a plane or a fixed plane; the instrument can be widely used as a tool for a long time; the instrument comprises a chassis, a sliding block frame beam, a base plate, a first positioning pipe, a second positioning pipe, a first straight toothedbar, a second straight toothed bar, a driving device, a painting brush and a tape ruler, and has the advantages that the operation is simple, all demonstrations, curve drawing and the like can be completed only by rocking a handle, the functions are complete, and hyperbolic curve demonstration and track curve drawing of any parameter can be completed; drawing accuracy is high, structure is compact, cost is low, and carrying is convenient; feasibility is good, and the instrument can demonstrate and draw at any angle in various occasions, and is suitable for teaching, engineering design, fixed place processing and the like.
Owner:NANJING VOCATIONAL UNIV OF IND TECH

Drawing assist device for interior design

The invention discloses an interior design drawing assist device which comprises a mounting frame. and adjusting rotating parts fixed to the two sides of the inner wall of the mounting frame, wherein each adjusting rotating part comprises a supporting pipe, the two ends of each supporting pipe are fixedly connected with limiting pipes, the surface of each supporting pipe is sleeved with a rotating pipe, the two ends of each rotating pipe are fixedly connected with positioning pipes, a movable rod is slidably connected to the interior of each limiting pipe, and limiting blocks are fixedly connected to the upper side and the lower side of the surface of the movable rods correspondingly. The invention relates to the technical field of interior design assist equipment. According to the interior design drawing assist device, a placing plate is fixed through the adjusting rotating parts, the adjusting rotating parts are matched with a transmission part, the limiting blocks on the two sides of the adjusting rotating parts can be moved out of the limiting grooves at the same time by pressing a pressing cap on one side of the placing plate, the placing plate can be directly rotated, the angle of the placing plate is adjusted, the operation is easy and convenient, two groups of limiting blocks are arranged to limit and support the placing plate, so that the structure is more stable.
Owner:ZHENGZHOU RAILWAY VOCATIONAL & TECH COLLEGE

Method for detecting polymorphism of MTHFR gene through fluorescent quantitative PCR

The invention provides a primer probe combination for detecting the polymorphism of an MTHFR gene through fluorescent quantitative PCR. The primer probe combination comprises two groups of primers anddouble probes as shown in a sequence table; meanwhile, the invention provides a method for detecting the polymorphism of the MTHFR gene through fluorescent quantitative PCR. According to the invention, the polymorphism of the MTHFR gene is detected by adopting a real-time fluorescent quantitative PCR Taqman-MGB probe method, and a wild type and mutant type double-probe detection method is adopted, so specificity is improved, and cost is reduced; and a Taqman-MGB probe is superior to an ordinary probe in the aspects of accuracy, repeatability, specificity, sensitivity and the like of experimental results. Thus, the MTHFR gene polymorphism method established by the invention has the advantages of accurate result, high specific sensitivity, no toxicity, no pollution, low cost, rapidness, high efficiency and the like.
Owner:昆明和合医学检验所有限公司

Method and processor for determining storage capacity of gas storage

The invention relates to the technical field of oil gas, and discloses a method for determining the capacity of a gas storage and a processor. The method comprises the following steps: establishing a three-dimensional geologic model based on acquired fault data, structural layer data, layer parameter data and well trajectory data; selecting permeability, porosity and relative permeability curves in the model as time-varying parameters in numerical reservoir simulation; the black oil model is transformed based on the reservoir physical property time-varying phenomenon, a new mathematical model is formed, the new mathematical model is used for reflecting the change of permeability and relative permeability curves along with surface flux, and a continuity equation in the new mathematical model changes; reading a first effective pore volume after multi-cycle historical fitting of the three-dimensional geologic model, and calculating a second effective pore volume contributed by each gas storage fluid region to the dynamic reserves of the gas reservoir; and determining the storage capacity of the gas storage based on the second effective pore volume and the natural gas compression factor. The method is closer to actual production, and can obtain reservoir capacity data more accurately.
Owner:PIPECHINA SOUTH CHINA CO

Multifunctional mathematical coordinatometer

The invention discloses a multifunctional mathematical coordinatometer. The multifunctional mathematical coordinatometer comprises a base. An installing groove is formed in the rear end face of the base, a sucker is installed in the installing groove, a main ruler is arranged on the side face of the base, and a magnetic strip is arranged on the rear end face of the main ruler. A strip-shaped clamping groove is formed in the upper surface of the main ruler, a third auxiliary ruler is arranged in the strip-shaped clamping groove, the right end of the third auxiliary ruler is movably connected with the strip-shaped clamping groove through a clamping post in a clamped mode, and a lifting piece is arranged at the left end of the third auxiliary ruler. A compass is arranged at the right end of the front end face of the main ruler, a rotary shaft is arranged in a round groove in the middle of the front end face of the base, the side face of the rotary shaft is sleeved with a rotary disc, and the side face of the rotary disc is provided with a rotary ruler. The whole multifunctional mathematical coordinatometer is simple in structure, small in occupied space and easy and convenient to operate; arcs with different sizes and angles can be drawn, simple two-dimensional and three-dimensional coordinate systems can be established, students more easily learn and understand knowledge, and compared with a traditional drawing tool, the multifunctional mathematical coordinatometer is more convenient to use and more practical.
Owner:张旭光

Shallow-basin riverbed microtopography measurement apparatus

The invention discloses a shallow-basin riverbed microtopography measurement apparatus. The whole apparatus is a hull-type buoyancy tank structure, the apparatus comprises a measurement box and a buoyancy groove, and the measurement box is arranged on the buoyancy groove; the measurement box is inside provided with a magnetic control circuit and multiple measurement units; each measurement unit comprises a floating scale, a water tank, a disk, a water injection pipeline and a measurement rod; when the apparatus works, the measurement rod penetrates the corresponding tank bottom and the buoyancy groove and is contacted with the river bottom, the river bottom relative elevation is indirectly calculated based on the decreased distance of the measurement rod, and the automatic elevation of the measurement rod is controlled through an electrified magnetic field. The apparatus is applicable to measure shallow-basin riverbed microtopography, and is capable of accurately efficiently drafting the basin topography by being combined with riparian zone control point measurement equipment. When the apparatus performs riverway microtopography measurement, distributed points are relatively dense, and measurement is simple and fast. Compared with current engineering measuring instruments, the apparatus saves a large amount of working time, and compared with ultra-sonic depth finders and other advanced equipment, the apparatus possesses the advantages of being economical, cheap, simple, practical and the like.
Owner:HOHAI UNIV

Depthwise fast convolution system based on image processing, and image recognition method

The invention discloses a Depthwise fast convolution system based on image processing. The Depthwise fast convolution system comprises an image pixel reading unit and a DW convolution calculation unit. The image pixel reading unit can store an image to be processed into the storage unit in a multi-dimensional form; and the DW convolution calculation unit reads the image data in rows and then performs multiply-accumulate calculation with the convolution kernels of the three rows to obtain calculation results of all pixel points. According to the system, a rapid algorithm of image convolution isrealized, the process of repeatedly reading the image storage unit can be reduced, the calculation space used by convolution is reduced, and the result of image convolution can be rapidly and accurately obtained.
Owner:中科南京人工智能创新研究院

Information notification method, device and equipment and computer storage medium

The embodiment of the invention provides an information notification method and device, electronic equipment and a computer storage medium. The method comprises the following steps: acquiring a first screenshot containing current alarm information; performing text line recognition on the first screenshot to obtain each text line in the first screenshot; performing character recognition on each text line in the first screenshot to obtain a text recognition result; adopting a regular matching mode to determine a fault detection object matched with the text recognition result and a first alarm notification object matched with the text recognition result; and querying the information of the fault detection object in the CMDB to obtain an information query result of the fault detection object, and sending the information query result to the first alarm notification object.
Owner:WEBANK (CHINA)

Capacitive touch screen writing pen and method for positioning touch spot position of capacitive touch panel writing pen

The invention discloses a capacitive touch screen writing pen and a method for positioning a touch spot position of the capacitive touch screen writing pen. The capacitive touch screen writing pen comprises a penholder and pen end, wherein the pen end is provided with a trapezoidal capacitive coupling part which can form a coupling capacitor with a touch screen and is made of an electric conducting material; and the tip of the pen end is positioned in front of the top edge of the trapezoidal capacitive coupling part. The method for positioning the touch spot position of the capacitive touch screen writing pen comprises the following steps of: determining the positions of two trapezoidal bevel edges corresponding to a capacitive coupling surface of the pen end through a touch area obtained on the capacitive touch screen; and deflecting the positions of the trapezoidal bevel edges on the touch screen inwards at distances S1 and S2 to obtain a coordinate position of a crossing point of two straight lines, and the coordinate position is the coordinate of a tip touch spot. The methods solve the problem that the touch spot position of the conventional capacitive touch screen writing pen is blocked, which is unfavorable for fine operation and causes a problem of low user experience.
Owner:张永革

Digital color matching and dyeing methods and color matching and dyeing systems

The invention discloses digital color matching and dyeing methods and color matching and dyeing systems for pure color dyeing of a fabric. The digital color matching method comprises the steps of pre-establishing the digital color matching system, obtaining the LAB value of the color of a target sample, searching for a color database, obtaining a recommended ink formula, comparing a formula and the like. The color matching system comprises a color measuring probe unit, a storage unit, a data processing unit and a multi-ink-path scanning and printing unit. The digital dyeing method comprises the steps of digital color matching, ink blending for ink-jet dyeing and fixed single-channel ink-jet dyeing. The digital dyeing system is mainly composed of the digital color matching system, an ink mixing module and a fixed single-channel digital ink-jet module. The methods and the systems have the advantages of a traditional dyeing process and digital printing at the same time, for example, the cleanness and rapidness are achieved, printed samples are completely matched with large-scale products in color, the color gamut is wide, the uniformity is very good, and the depth and hue are the same as those of traditional dyeing.
Owner:浙江环峪科技有限公司

Tube bundle two-dimensional rapid drawing method and system based on full three-dimensional design and storage medium

The invention discloses a tube bundle two-dimensional rapid drawing method and system based on full three-dimensional design and a storage medium. The method comprises the steps: creating a global flattening model for converting a tube bundle assembly three-dimensional design drawing into a two-dimensional drawing; automatically flattening the tube bundle assembly based on a global flattening model, and obtaining a tube bundle assembly two-dimensional graph mode; setting tube bundle size coordinates; creating an engineering drawing table; creating an engineering drawing assembly drawing; marking key size parameters and technical parameters of the tube bundle, and generating a tube bundle two-dimensional diagram; according to the drawing method, on the basis of design of the full-three-dimensional tube bundle assembly, two-dimensional accurate and rapid drawing of the tube bundle is achieved through automatic flattening of the tube bundle.
Owner:FAW JIEFANG AUTOMOTIVE CO

Optimization method for angle measurement eccentric errors of collimators

The invention discloses an optimization method for angle measurement eccentric errors of collimators. The optimization method includes a parameter setting step: setting parameters including eccentricerrors, measurement angles, actual rotation angles, radiuses and the like; a relation building step: building logic relations between the various parameters; a relation optimizing step: optimizing thelogic relations between the various parameters; a model generating step: utilizing the optimized logic relations between the various parameters as error correction models; an error optimizing step: measuring angles by the aid of the error correction models to optimize the angle measurement eccentric errors. The optimization method has the technical advantages that the mathematical models are built for the eccentric errors of optical grating code disks of the collimators, system defects can be overcome by the aid of digital optimization processing modes, accordingly, influence of the eccentricerrors on the instrument precision and performance can be reduced, and the measurement precision of the collimators can be enhanced; the manufacturing and adjusting difficulty of the optical gratingcode disks can be lowered, the production cycles can be shortened, and the like.
Owner:BEIJING INST OF SPACE LAUNCH TECH +1
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