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613 results about "Polygonal line" patented technology
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Polygonal Line. in mathematics, a broken line composed of a finite number of line segments. A polygonal line is also understood to mean a closed broken line—that is, a polygon. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content.
Scheme for graphical user interface using polygonal-shaped slider
InactiveUS6542171B1Easy to handleGymnastic exercisingCathode-ray tube indicatorsGraphicsPolygonal line
A scheme for graphical user interface using a polygonal-line-shaped slider that enables a user to intuitively manipulate-and playback spatio-temporal media data such as video data and animation data without deteriorating the temporal continuity of the data in interactive manipulation and playback of the spatio-temporal media data is disclosed. In this scheme, the slider is composed of a polygonal line composed of at least one segment and a coordinate indicator that is moved along the polygonal line. Data corresponding to coordinates specified by the coordinate indicator is entered. The apparatus according to present invention stores the coordinates of vertexes of the polygonal line, stores input coordinates, maps the input coordinates onto a point on the polygonal line, and positions the coordinate indicator at the point.
Owner:NIPPON TELEGRAPH & TELEPHONE CORP
Carton with pressure sensitive opening device
InactiveUS20060131370A1Reduce effortReduce amountRigid containersContainers with multiple articlesPolygonal lineCarton
A device for breaking a series of perforations or cuts to open a carton or otherwise separate materials connected by a frangible severance line includes a pair of fold lines that converge away from the severance line, a collapsible line perpendicular to severance line and between the pair of fold lines, and third fold line perpendicular to and intersecting the collapsible line. A tear in the severance line is initiated by applying pressure in vicinity of the intersection of the collapsible line and the third fold line, which causes the device to apply tension to the frangible line, which is further weakened by having an elongated perforation that it centered on the axis of tension, and neighboring perforations that are angled toward the axis of tension. The angle of each perforation with respect to the axis of tension preferably varies depending on its location relative to the axis of tension.
Owner:BATES AARON L
Dynamic learning and knowledge representation for data mining
ActiveUS7139764B2Effective visualizationEfficient confirmationData processing applicationsDigital data processing detailsPolygonal lineDynamic learning
An integrated human and computer interactive data mining method receives an input database. A learning, modeling, and analysis method uses the database to create an initial knowledge model. A query of the initial knowledge model is performed using a query request. The initial knowledge model is processed to create a knowledge presentation output for visualization. It further comprises a feedback and update request step that updates the initial knowledge model.A multiple level integrated human and computer interactive data mining method facilitates overview interactive data mining and dynamic learning and knowledge representation by using the initial knowledge model and the database to create and update a presentable knowledge model. It facilitates zoom and filter interactive data mining and dynamic learning and knowledge representation by using the presentable knowledge model and the database to create and update the presentable knowledge model. It further facilitates details-on-demand interactive data mining and dynamic learning and knowledge representation by using the presentable knowledge model and the database to create and update the presentable knowledge model.The integrated human and computer interactive data mining method allows rule viewing by a parallel coordinate visualization technique that maps a multiple dimensional space onto two display dimensions with data items presented as polygonal lines.
Owner:LEICA MICROSYSTEMS CMS GMBH
System and method for shape recognition of hand-drawn objects
InactiveUS7324691B2Detailed informationImage analysisCharacter and pattern recognitionContinuationPolygonal line
A system and method for shape recognition of hand-drawn objects is provided. A shape recognizer may recognize a drawing such as a diagram or chart from ink input by recognizing closed containers and / or unclosed connectors in the drawing. The closed containers may represent any number of shapes that may be recognized including circles, ellipses, triangles, quadrilaterals, pentagons, hexagons, and so forth. The unclosed connectors may be any type of connector including lines, curves, arrows, and so forth. Polylines may be used to approximate a skeleton of a connector for handling continuation strokes, overlapping strokes and over-tracing strokes of the skeleton. By using the present invention, a user may draw diagrams and flow charts freely and without restrictions on the hand-drawn input.
Owner:MICROSOFT TECH LICENSING LLC
Tunnel back reflection illuminating system setting method based on train speed control and train distance keeping
InactiveCN102635076AImprove instant perception speedImprove sense of directionTraffic signalsRoad signsRoad surfacePattern perception
The invention discloses a tunnel back reflection illuminating system setting method based on train speed control and train distance keeping. The method comprises the steps of: arranging tunnel side walls, red and white facade marked lines on lower edges of curbs, and road surface raised pavement markers on road sides to form a space high-frequency vision information stream; secondly, arranging a plurality of layers of outline markers on the tunnel side walls at intervals of 25-50m in an advancing direction, arranging side wall vertical marked lines and extending to the top of a cave, transversely arranging transverse wrong vision marked lines on the road surface to form a space medium-frequency vision information stream; and then arranging two white folded lines and vibration marked lines on the road surface every 3 medium-frequency transverse marked lines at intervals of 100-200m in the advancing direction, and arranging two white folded lines on the side walls to form a space low-frequency vision information stream. Multiple channels of frequency vision systems are made of a high-strength back reflection material, so that a back reflection illuminating system is formed, perception of velocity and perception of distance of a driver are effectively improved, thus the integration of tunnel illuminating benefit and tunnel safety is achieved. The tunnel back reflection illuminating system setting method can be applied to tunnel illumination of low-light expressways with speed limit of 60-80km / h and traffic safety facility improvement.
Owner:WUHAN UNIV OF TECH
Data rarefying and smooth processing method based on vector map
ActiveCN103839228AThe display effect is conciseSave data spaceImage enhancementImage codingPolygonal lineAlgorithm
The invention a data rarefying and smooth processing method based on a vector map. The method mainly comprises the following steps: the data volume is reduced by rarefying curve characteristic points, and the protruded edge problem is solved by smoothly processing closed curve characteristic points. The curve characteristic points are compressed by setting different segment length threshold values, angle threshold values and vertical distance threshold values, and unsmoothed broken lines are smoothly processed through the smooth processing algorithm, so the display effect of closed curves having disadvantages of large curvature change and protruded edges can be effectively improved.
Owner:XIAMEN YAXON NETWORKS CO LTD
Low-cost mountainous-area expressway tunnel entrance vehicle speed control facility designing method
InactiveCN102720148AImprove instant perception speedImprove sense of directionTraffic signalsRoad signsPolygonal lineIntermediate frequency
The invention discloses a low-cost mountainous-area expressway tunnel entrance vehicle speed control facility designing method which comprises the following steps of: setting red-and-white mark lines and road-side road surface and in-road lane line raised road signs on the side wall of the tunnel entrance, the lower edge of curb and the plane of the overhauling way at a space of 1.5-3m to form a high-frequency vision information flow; setting intermediate-frequency information at the tunnel entrance in the advancing direction every 20-30m, setting 3 layers of delineators on each side wall of the tunnel from top to bottom, setting a side wall vertical mark line and 2 side wall white broken lines, and setting a transverse staggered vision mark line and 2 white broken lines on the road surface to form an intermediate-frequency vision information flow; and forming a retroreflection illumination system from the retroreflecting materials by use of the high and intermediate-frequency vision information. Road-side road surface raised road signs and transverse deceleration mark lines (consisting of transverse vibration mark lines and transverse staggered vision mark lines) are arranged in front of the tunnel entrance, and the longitudinal space of the transverse deceleration mark lines turns smaller at first and then becomes stable to form a tunnel pre-deceleration system. The retroreflection illumination system and the deceleration system form the tunnel entrance vehicle speed control facility which realizes reasonable transition of the vehicle speed at the tunnel entrance and is suitable for the mountainous-area expressway tunnel entrance with the speed limit of 60-80km / h.
Owner:WUHAN UNIV OF TECH
Method for handwritten character recognition, system for handwritten character recognition, program for handwritten character recognition and storing medium
InactiveUS20090136136A1Avoid problemsImprove recognition accuracyCharacter and pattern recognitionPolygonal lineLine segment
In a case in which handwritten character recognition such as online handwritten character recognition is implemented, simple and high performance character recognition by which transformation such as remarkable transformation and rotation is able to be treated and which recognizes an input that is written in a single stroke such as kaisho-writing, is provided. Because of this, the present invention performs: capturing an input handwritten character with parameter representation for each stroke and applying a polygonal approximation to each stroke; assuming each polygonal line segment approximated by the polygonal approximation to be vector that reaches an end point from a start point, and obtaining an angle between an axis that becomes a reference and each line segment as a polygonal line segment angle sequence; obtaining an exterior angle sequence of vertices of the obtained polygonal line segments; making a sum of exterior angles of the same sign, where the same sign of plus or minus in the exterior angle sequence continues, to be a winding angle sequence; extracting a global feature according to each obtained sequence and a localized or quasi-localized feature in each curved portion divided corresponding to the winding angle sequence, hierarchically and divisionally; and performing the character recognition by comparing the extracted result with a template of an object character for recognition that is provided in advance.
Owner:KITE IMAGE TECH
Track smoothing method suitable for five-axis numerical control device
ActiveCN102393678AImprove processing efficiencyReduce transfer speedProgramme controlComputer controlNumerical controlProgram segment
The invention relates to a five-axis numerical control processing technique for complex curved surfaces, in particular to a tracking smoothing method suitable for a five-axis numerical control device, which belongs to the technical field of numerical control. The method comprises the following steps of: 1, continuously reading a segment of numerical control command point sequence, and identifying a program segment which satisfies a smooth curve interpolation condition; 2, estimating the positions of interpolation points between adjacent command points, and taking the positions as first-time correction command points; 3, parameterizing the first-time correction command point; 4, generating second-time correction command points, and determining first-order derivative vectors and second-order derivative vectors of the second-time correction command points; and 5, constructing a quintic spline curve for each coordinate component of adjacent second-time correction command points respectively, connecting the quintic spline curves into an integral smooth curve, and performing curve interpolation on the smooth curve. By means of the method, the processing efficiency and the processing accuracy of the five-axis numerical control device are increased, and a turning phenomenon caused by broken line tracks is eliminated.
Owner:SHENYANG GOLDING NC & INTELLIGENCE TECH CO LTD
Antenna, And Radio-Frequency Identification Tag
ActiveUS20080204329A1Dropped communicationIncrease the lengthSimultaneous aerial operationsRadiating elements structural formsPolygonal lineElectrical conductor
An antenna connected to a circuit portion and configured to effect transmission and reception of information by radio communication, the antenna including a driven meander line portion which has a feed section connected to the circuit portion and which is a line conductor formed in a meandering pattern, and a parasitic meander line portion which does not have a feed section connected to the circuit portion and which is a line conductor formed in a meandering pattern, the parasitic meander line portion being positioned relative to the driven meander line portion, so as to influence an input impedance of the driven meander line portion, wherein the driven and parasitic line portions have respective extensions of the line conductors formed at respective opposite longitudinal ends of the antenna. Also disclosed in a transponder in the form of a radio-frequency identification tag including the antenna and capable of radio communication with an interrogator.
Owner:BROTHER KOGYO KK +1
Method and apparatus for creating representations of geologic shapes
A method for filling the space between two neighboring polyline ribs is disclosed. The method, called ladder triangulation, likens two ribs, which generally outline a complex structure, to the two rails of a ladder. The ladder triangulation is built by adding rungs, each rung connecting a node on one rib to a node on the other rib and thereby (after the first rung) creating one more triangle. In essence the first rung connects node 1 of polyline 1 to node 1 of polyline 2, and the second rung connects either node 1 polyline 1 to node 2 polyline 2 or else node 1 polyline 2 to node 2 polyline 1, whichever rung is shorter. There are (n1+n2) / 2 such rungs where n1 and n2 are the respective node counts of the two polylines, and computation is linear with node count. Where there are multiple polylines, the same process is repeated between polylines 2 and 3, 3 and 4, etc. and may also be repeated between the last polyline and the first one (cyclic rib fill). The entire set of ribs is filled in time proportional to the total node count. Moreover, if a single rib is subsequently modified by an editing process, a triangulation can be updated rapidly by recomputation of just the two ladder triangulations involving that rib.
Owner:LANDMARK GRAPHICS
Three-dimensional micro heater with groove-shaped heating film region and manufacturing method thereof
ActiveCN101917784AGood surface smoothnessEasy to controlDecorative surface effectsHeating element materialsElectrical resistance and conductancePolygonal line
The invention relates to a three-dimensional micro heater with a groove-shaped heating film region and a manufacturing method thereof. The three-dimensional micro heater is characterized in that: the groove-shaped heating film region of which the cross section is in a V-shaped or an inverse trapezoid-shaped structure is connected with a substrate framework through a supporting suspended beam; a heat resistance wire is distributed inside a groove of the heating film region in the form of fold line and is connected with the electrode on the substrate framework through a lead wire on the supporting suspended beam; and a heat insulation cavities formed by a silicon anisotropic wet etching method is arranged below the heating film region and the supporting suspended beam. The heat resistance wire of the three-dimensional micro heater is distributed inside the groove of the heating film region with a three-dimensional structure, has low heat loss caused by heat convection and is favorable for reducing power consumption of the heater. The groove structure concentrates heat, improves the heating efficiency and is favorable for application of the heater in the fields of infrared light sources and sensing.
Owner:HEFEI MICRO NANO SENSING TECH CO LTD
Selectable length meander line antenna
InactiveUS7129894B1Simple (Simultaneous aerial operationsRadiating elements structural formsPolygonal lineControl signal
A single antenna element with a switchable extension may be used to change the size of the radiating surface and provide an antenna that has two or more separate center frequencies. The range of frequencies that may be tuned by the antenna is enhanced, while maintaining relatively low complexity tuning and matching circuitry. Switching for the extension is performed by a switching element that is located at the point of connection of the extension to the antenna element. A control line supplies a control signal to the switching element to enable and disable the extension. The control line is positioned in close proximity to the antenna element to enhance coupling between the antenna element and the control line.
Owner:CENTURION WIRELESS TECH INC
Sliced model generating apparatus and three-dimensional printing system
A sliced model generating apparatus includes a storage, a generator, an information adder, a converter, an area setter, and a color adder. The storage stores a three-dimensional model that includes attribute information including at least color information. The generator generates a contour polyline including a plurality of line segments. The information adder associates the line segments with the attribute information of the three-dimensional model. The converter converts the contour polyline whose line segments are associated with the attribute information into an image coordinate system. The area setter sets, in a region surrounded by the contour polyline converted into the image coordinate system, each of areas targeted for coloring adjacent to a corresponding one of the line segments. The color adder colors each of the areas targeted for coloring with a color based on the attribute information associated with a corresponding one of the line segments, thus generating a sliced model.
Owner:ROLAND DG CORP
T-shaped/inclined-L-shaped current guide slit dual-frequency broadband dual-circular polarization microstrip laminated antenna
ActiveCN105305045AAdvantages and significant effectsCompact structureSimultaneous aerial operationsRadiating elements structural formsDual frequencyPolygonal line
Owner:XIAMEN UNIV
Segmental assembled bridge girder erection machine for construction of small curved bridge
ActiveCN104805773AAutomatically adjust chamfersMeet various spansBridge erection/assemblySocial benefitsPolygonal line
A segmental assembled bridge girder erection machine for the construction of a small curved bridge at least comprises girders which can be automatically bent, a rear support leg, a front support leg, at least one middle support leg, a hoisting crown block which can move along a broken line, and a plurality of hoists, wherein the girders which can be automatically bent comprise two parallel steel girders, and transverse bracings are not arranged between the two steel girders; each steel girder comprises a middle steel box girder, and a front guide girder and a rear guide girder which are located on the two sides of the middle box girder; the girders which can be automatically bent are supported through the rear support leg and the front support leg which are arranged below the girders, as well as the middle support leg located between the front support leg and the rear support leg; the hoisting crown block which can move along the broken line is arranged at the upper parts of the girders which can be automatically bent, and can move back and forth; the hoists are further arranged on the girders which can be automatically bent. Therefore, the mini-sized curved bridge with a radius of at least 60 m can be passed and erected through the segmental assembled bridge girder erection machine; the segmental assembled bridge girder erection machine satisfies various performance requirements, achieves remarkable economic and social benefits, and fills the gaps of small-curvature girder erection and cross bridge girder erection machines at home and abroad.
Owner:武汉通联路桥机械技术有限公司
Rapid ellipse detection method based on contour curve segmentation arc merging and combination
PendingCN106372642AQuick checkClear principleCharacter and pattern recognitionPattern recognitionPolygonal line
The invention discloses a rapid ellipse detection method based on contour curve segmentation arc merging and combination. The method comprises steps that A, edge contour curves of single pixel width of an image are extracted, and broken line approximation contours are acquired; B, multiple types of constrained conditions are utilized to carry out condition segmentation of the broken line approximation contours; C, neighborhood merging of contour arc segment curves after segmentation is carried out, and adjacent same-type arc segments are merged; D, for L candidate ellipse arc segments after neighborhood merging, non-adjacent same-type arc segments are combined; E, pixel points on each candidate arc segment on L+H ellipse candidate arc segments are utilized to carry out ellipse fitting, authenticity verification is carried out for ellipses after fitting, and FALSE ellipses are eliminated; F, for the real ellipses, the repeated ellipses are eliminated through utilizing distances of the ellipses in a five-dimensional parameter space. Through the method, ellipse detection is carried out, relatively high reliability and robustness are realized, rapid ellipse detection can be realized, and difficulty in extracting ellipse characteristics from images is reduced.
Owner:BEIHANG UNIV
Method for handwritten character recognition, system for handwritten character recognition, program for handwritten character recognition and storing medium
InactiveUS8290274B2Avoid problemsImprove recognition accuracyCharacter and pattern recognitionPolygonal lineLine segment
A method is provided that includes capturing an input handwritten character with parameter representation for each stroke and applying a polygonal approximation thereto; assuming each polygonal line segment approximated to be vector that reaches an end point from a start point, and obtaining an angle between an axis that becomes a reference and each line segment as a polygonal line segment angle sequence; obtaining an exterior angle sequence of vertices of the line segments; making a sum of exterior angles of the same sign, where the same sign of plus or minus in the exterior angle sequence continues, to be a winding angle sequence; extracting a global feature according to each obtained sequence and a localized or quasi-localized feature in each curved portion divided corresponding to the winding angle sequence, hierarchically and divisionally; and performing character recognition by comparing the extracted result with a template of an object character.
Owner:KITE IMAGE TECH
Method for building optical proximity correction model, optical proximity correction method and mask
ActiveCN101937171ARealize roundingAccurate correctionOriginals for photomechanical treatmentGraphicsPolygonal line
The invention relates to a method for building an optical proximity correction model, an optical proximity correction method and a mask. The method for building the optical proximity correction model comprises the following steps of: exposing and developing according to a test pattern on the mask to obtain test data; rounding the test pattern of the mask, wherein the rounding treatment comprises the replacement of square corners in the original test pattern in the mask with zigzag broken lines; simulating the photoetching process by using the rounded mask to obtain simulate data; comparing the test data with the simulated data, and building the optical proximity correction model. The zigzag broken lines are used for rounding the square corners, so that optical proximity correction becomesmore accurate; thus, the rate of finished products is increased, labor and time are saved, and production efficiency is improved.
Owner:SEMICON MFG INT (SHANGHAI) CORP +1
Pretensioning method construction technology of 50m broken line reinforced concrete T-shaped beam
ActiveCN101748681AImprove stabilityGood self-anchoring bonding effectBridge erection/assemblyBridge materialsShaped beamPolygonal line
The invention discloses a pretensioning method construction technology of 50m broken line reinforced concrete T-shaped beams, belonging to the technical field of bridge building constructions. The construction technology comprises the following steps of: foundation treatment; the design and fabrication of footstalls; the design and fabrication of reaction beams; the design and fabrication of tension beams; the design and fabrication of uplift piles; the fabrication and pre-embedment of a bent-up device; the design and fabrication of stranded steel wire tension connectors; the processing and colligation of reinforcing steel bars; the blanking and strand pricking of stranded steel wires; the tensioning of pre-stressed tendons; the fabrication and installation of templates; the pouring and maintenance of concrete; the relaxation of the pre-stressed tendons; and the pit-out and installation of T-shaped beams. The invention can solve various difficult problems in the prestress tensioning construction of high-span broken line reinforced concrete T-shaped beams and fills the gap of the technology of China, and the whole construction technology process and relevant control parameters has scientific and reasonable configuration, can meet the requirements of design and construction on quality, safety and the like, and have high operational instruction property. The invention can be widely applied to the stranded steel wire tensioning construction in structures similar to the high-span broken line pretensioning method T-shaped beams, the box girder and the like in engineering of large-scale buildings, bridges, wharfs and the like.
Owner:浙江省建投交通基础建设集团有限公司
Semiconductor acceleration sensor and method of manufacturing the same
InactiveUS7107847B2Improve seismic performanceImproving breaking limitAcceleration measurement using interia forcesAcceleration measurement in multiple dimensionsBreaking strengthPolygonal line
A semiconductor acceleration sensor comprises: a frame having an opening inside thereof; flexible beams extending from the frame to the inside of the opening of the frame; a weight suspended from and supported by the beams so that the weight can freely move; piezoresistors to be mounted on the beams and to vary the resistance values in response to accelerations which work on the piezoresistors. The frame comprises damper plate portions, each of which covers a part of the opening spanning from a corner portion of two neighboring sides of the frame on the side of the opening to the inside of the opening, and each of which serves serve as a stopper to limit movement of the weight. The weight has corner portions which face the corner portions, respectively, and each of which is chamfered to have a shape of arc or a polygonal line consisting of at least three sides as seen in plan view. Thereby, the breaking strength of each stopper is increased, and hence a semiconductor acceleration sensor having superior shock resistance can be obtained.
Owner:MATSUSHITA ELECTRIC WORKS LTD
Polygonal line type water-soluble aryleneethynylene, preparation and application thereof
The invention belongs to the technology field of the chemo-biosensing material, particularly a preparation method of water soluble zigzag poly(arylene-ethynylene) by adopting alternate phenyl, acetenyl, and aryl as conjugated main chain, and the application in chemical and biological detection thereof. The preparation method comprises the steps as follows: subjecting m-diiodobenzene and the derivatives thereof as the raw material and other various diynyl substituted aromatic compounds to organic metal catalytic reaction for synthesizing a series of water soluble poly(arylene-ethynylene) having water soluble group in side chain and zigzag structure as conjugated main chain. Compared with the conventional linear-type water soluble conjugated polymer prepared from the m-diiodobenzene and the derivatives thereof as the raw material, the zigzag poly(arylene-ethynylene) has large conformational freedom in the main chain, which facilitates full interaction with a substance to be detected and tends to generate intramolecular fold in aqueous solution to form spiral or approximately spiral conformation and represent high-sensitivity fluorescence quenching effect, thereby the simple and rapid chemo-bioluminescent sensing detection is realized.
Owner:NANJING UNIV OF POSTS & TELECOMM
Lens-attached ligh-emitting element and method for manufacturing the same
InactiveUS20070057268A1Improve usabilityImproved optical availability efficiencySolid-state devicesGlobesPolygonal lineEngineering
A lens-attached light-emitting element having an improved optical availability efficiency includes a composite lens provided on an approximately U-shaped light-emitting area of the light emitting element array. Four spherical lenses are arranged in such a manner that each is centered in the neighborhood the an end of a respective one of three segments of a U-shaped polygonal line corresponding to positions where light emitted by the U-shaped light-emitting area is a maximum Three cylindrical lens are arranged between two of the spherical lens, respectively, each cylindrical lens having an axis parallel with each segment. These four spherical lenses and three cylindrical lenses together constitute the composite lens. The light-emitting element further comprises an antireflection film covering the light-emitting area, and the composite lens is formed on the surface of the antireflection film.
Owner:FUJIFILM BUSINESS INNOVATION CORP
Urban river-crossing bridge traffic landscape design method based on multi-frequency color information
InactiveCN104372731AImprove instant perception speedImprove sense of directionBridge structural detailsTraffic signalsLandscape designIntermediate frequency
The invention relates to an urban river-crossing bridge traffic landscape design method based on multi-frequency color information. Yellow and black or blue and white lamp pole facade marking lines are arranged on the lower edges of two sides of lamp poles, at the interval of 25 m to 35 m, of a bridge; transverse visual illusion marking lines are arranged at the positions, corresponding to the yellow and black or blue and white lamp pole facade marking lines, of the road surface; road surface protruding road marks are arranged at the interval of 12.5 m to 17.5 m, and therefore the space intermediate frequency visual information flow is jointly formed. Yellow and black or blue and white road side facade marking lines are arranged on the lower edge and the top of curb stone at intervals of 1.5 m to 3 m, and therefore the space high frequency visual information flow is formed; a set of road surface transverse white folding lines is arranged every four lamp poles in the advancing direction, and yellow or blue bridge handrails are arranged on the road side, so that the space low-frequency visual information flow is formed. The multi-frequency color information flow can effectively improve the speed perception, the distance perception and the visual sensitivity under high and low illuminance of a driver in the vehicle driving process, and unification of urban river-crossing bridge traffic landscape coordination and vehicle driving safety is achieved.
Owner:WUHAN UNIV OF TECH
Automatic welding control method and system based on dual-mode real-time welding seam tracking
ActiveCN103567606ARealize automatic weldingImprove stabilityArc welding apparatusPolygonal lineDual mode
The invention discloses an automatic welding control method and system based on dual-mode real-time welding seam tracking, and mainly solves the technical problems of difficulty in automatic welding, low welding seam tracking precision and the like in a conventional space welding seam with a complex track. According to the technical scheme, the automatic welding control method and system based on dual-mode real-time welding seam tracking is proposed in combination with the characteristics of an electric arc sensing type real-time welding seam tracking system and a digital control type special welding machine system. According to the invention, the rotary electric arc sensing type welding seam tracking system is organically combined with the digital control type special welding machine system, the processing and assembly errors of workpieces and the position and size change of the welding seam caused by thermal deformation during welding are effectively compensated, and automatic tracking of the space welding seam with the complex track, especially a curved welding seam with high bending degree and a welding seam with a large-angle fold line is realized.
Owner:XIANGTAN UNIV
Structured light dynamic scene depth acquiring method based on encoding network template
The invention discloses a structured light dynamic scene depth acquiring method based on an encoding network template. The structured light dynamic scene depth acquiring method mainly solves the problems that the depth measurement precision is low and the measurement effects are liable to be affected by a measurement scene in the prior art. The structured light dynamic scene depth acquiring method is implemented through the steps of: designing a binary network template encoded by a binary cubic De Bruijn sequence; respectively acquiring a reference planar graph and a deformed grid image through the binary network template; performing line extraction on the deformed grid image and the reference planar graph to obtain a broken line graph and a vertical line graph of the grid image as well as a broken line graph and the vertical line graph of the reference planar graph; decoding the vertical line graphs of the deformed grid image and the deformed grid image respectively to obtain corresponding vertical line serial numbers; acquiring a point on the reference planar graph matched with a pixel point on a deformed grid image according to the vertical line serial numbers; and calculating a depth value of each point according to a triangulation ranging principle. The structured light dynamic scene depth acquiring method based on the encoding network template is high in measuring accuracy, has good robustness for complex scenes, and can be used for measuring dynamic three-dimensional scenes.
Owner:XIDIAN UNIV
Pop-Up Type Business Card and Fabrication Method Thereof and Control System For the Same
InactiveUS20080229633A1Double the effectDouble effectMechanical working/deformationOther printing matterGraphicsCard stock
Pop-up Business Card by this invention is characterized by—information printing part which contains the information of the card such as the company name, personal name, and contact number, —main folding line generated by the line-drawing process on one side of the card so that part of the card can be folded, —cutting-line pattern which contains cutting-lines formed from the main folding-line to the other side of the card, —the 1st folding-line pattern generated by line-drawing process on one side of the card so as to be juxtaposed with the cutting-line pattern, —the 2nd folding-line pattern generated by line-drawing process on the other side of the card paper so as to be juxtaposed with the above cutting-line pattern, *—the generation of the solid figures on the card when it is folded according to the above main folding-line, cutting-line pattern, the 1st folding-line pattern, and 2nd folding-line pattern, —solid figures reversibly popped up when the card is opened from the folded state along the main folding-line above.
Owner:YI KWANG HYUN
Biological reactor of polygonal line flowing film
InactiveCN101092270AStrengthen the function of nitrogen and phosphorus removalEnhance phosphorus release effectTreatment with aerobic and anaerobic processesWater storage tankDissolution
This invention relates to a wastewater treatment apparatus, especially UCT-broken line flow membrane bioreactor for reclaimed water reuse. The apparatus comprises: a float valve, a punched aeration tank, a liquid flow meter, a gas flow meter, a vacuum pressure gauge, a hollow fiber membrane module, a diving reflux pump, a single-stage self-priming pump, an electronic stirrer, an aeration pump, an ORP potential tester, am oxygen dissolution tester, a water storage tank, and an adjusting pool. The membrane bioreactor is divided into an anaerobic zone, an anoxic zone and an aerobic zone at a volume ratio of 1:1:4. Two partition boards are set in the aerobic zone. The ORP probe can monitor the redox potential of the anaerobic zone and the anoxic zone, and broken line flow mode of water flow in oxygen dissolution reactor in the aerobic zone. A dump pump is used to pump water into the water storage tank via the membrane module.
Owner:SHENYANG JIANZHU UNIVERSITY
Straddle type single rail traffic rail flexible turnout beam
ActiveCN102787536AEasy accessGuaranteed comfortRailway tracksManufacturing cost reductionWork period
The invention discloses a straddle type single rail traffic rail flexible turnout beam, which comprises a flexible beam section and a flexibility driving assembly, wherein the flexible beam section is used for forming the flexible turnout beam, the flexibility driving assembly is used for driving the flexible turnout beam to generate the flexibility deformation, and the flexible beam section comprises a flexible beam main body and a walking supporter. The flexible turnout beam structure formed by the flexible beam section with forced flexible deformation is adopted, when the rail conversion joint is needed, the flexibility deformation is generated through external force driving, the stabilizing surface and the guide surface of the flexible beam section are respectively in smooth transition, broken lines are eliminated, the passing of light rail trains is favorably realized, in addition, the structure is greatly simplified through being compared with that of the existing turnout structure, the manufacture cost is reduced, the manufacture work period is shortened, the service life is longer, the use and maintenance cost is saved, the comfort and the safety of the light rail running can be ensured, the vehicle running noise is reduced, and better environment protection performance is realized.
Owner:重庆川东船舶重工有限责任公司
Hot continuous rolling stainless steel strip steel tail portion loop control method
The invention belongs to the field of hot rolling strip steel, and particularly relates to a hot continuous rolling stainless steel strip steel tail portion loop control method. Step 1, a broken line is designed, a rectangular plane coordinate system is built, a force moment deviation value of a trip steel tail portion loop, namely, the difference between the given moment and the actual moment, serves as the X axis of the rectangular plane coordinate system, and a loop moment control coefficient value serves as the Y axis of the rectangular plane coordinate system, and the broken line is a three-section linear equation; step2, the algorithm of a strip steel tail portion loop moment controller is that Yn=Yn-1 +Kpn*{[1+TA / TN]*deltaYEn-deltaYEn-1}; step 3, if being within the range between delta1 and delta2, the moment deviation value of the trip steel tail portion loop is calculated according to the step 1, and if being beyond the range between the delta1 and the delta2, the moment deviation value of the trip steel tail portion loop is calculated according to the broken line, maximum amplitude limiting and minimum amplitude limiting are also adopted, the maximum amplitude limiting value is 8*10<-6>, and the minimum amplitude limiting value is 1*10<-6>; step 4, the loop is controlled by a hydraulic loop servo valve according to the result, calculated through the step 3, of the loop moment control coefficient.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD
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