556 results about "Geometric figure" patented technology

The invention discloses a compatible navigation receiver positioning system and a positioning method thereof. The system comprises a parameter configuring module, a data preprocessor, a satellite parameter calculating module, a pseudo-distance modifying module, a coordinate conversion module, a positioning calculating module, a kalman filter and a message forming module. The positioning method comprises the steps of: reading a configuration parameter of a receiver; extracting ephemeris data, almanac data and observation data; obtaining parameter information of effective satellites; obtaining the position of the receiver and the speed of the receiver; and generating a message by the navigation information. The invention realizes alternative use of the global positioning system, the independent navigation of the second big dipper navigation system breaks away from the dependency to the other navigation systems at emergency period, and the combination of the many satellite navigation systems increases the quantity of the effective satellites, so as to guarantee the continuity, the usability and the security of satellite positioning service, enhance the geometric figure intensity of the observation satellites, and improve the reliability of the whole global positioning system.

A sign is edge lit and illuminated by an array of light emitting diodes disposed along an edge of a light transmissive panel. A light diffusion surface, which can be formed by a series of serrations on the panel edge, disperses light from the discrete light emitting diodes in the array. A geometric figure, which can be text or graphics or both is formed on one face of the panel by grooves, which redirect diffused light so that an illuminated image, corresponding to the geometric figure, can be seen on the front of the panel. The grooves forming the figure and the light diffusion surface comprise parts of a one-piece panel, and the grooves and the light diffusion surface can be formed when the panel is injection molded.

The invention relates to a PC-based numerical control sliver automatic lathe part processing automatic programming and simulation realization method and a system. The method comprises the following steps: A. entering the simulator part graphic interactive input interface, and inputting the geometric figure and the related information of the parts to be processed; B. entering the part processing generation interface, and generating the part processing program and the related processing parameters; C. entering the simulation interface of the part processing program to make simulation inspection to the generated part processing program through the system, and the user can simulate the part processing course on a PC screen; D. transmitting the part processing program to the corresponding numerical control machine, and completing the programming and input of the part processing program. The system comprises processing program interactive generation and simulation, and relates to numerical control machines to realize the generation and simulation of PC-NC machine processing programs. The method and system of the invention can effectively increase the work efficiency of productivity of numerical control sliver automatic lathes.

A system and method for accurate measurement of distance and location of an object. The system comprises low-cost optical signal generators, aligned in a known configuration, to project a two-dimensional geometric figure on the object to be measured, or on a target attached to the object. The system captures an image of the projected figure, determines the exact geometry (e.g., area or circumference) of the figure, and calculates the exact distance to the object based on comparison of that geometry to the known configuration of the laser line generators. The invention simultaneously determines relative X and Y position of the object, thereby giving accurate X, Y, and Z coordinates.

The present invention discloses a cold plate with vortex generator for fluid going through defined an inlet and an outlet according to the flowing directions of the fluid, comprising: a base having a groove, one end of the groove is connected to the inlet and another end is connected to the outlet; a body installed on the base; at least one vortex generator mounted on a surface of the body toward the groove of the base, wherein two unparallel and symmetrical ribs form the vortex generator, one end of the unparallel ribs is a contraction end with a shorter gap, another end is an expansion end with a longer gap, coolant can pass through the gap between the ribs, due to each rib having a sharp portion, an appearance of the rib is a triangle geometric figure. The vortexes increase the liquid mixture and improve the heat transfer on the cold plate, but not cause much pressure drop, therefore the heat transfer of the entire system is more efficient.

The invention relates to a seamless splice display screen. The seamless splice display screen comprises at least two adjacent splice display screen bodies. Each display screen body comprises a display region and a frame arranged at the edge of the display region, and gaps are formed in the positions of the spliced frames of the splice display screen bodies. The seamless splice display screen further comprises a gap eliminating device, the gap eliminating device comprises a covering part and a light guide part, the frames and the gaps are covered with the covering part, the light guide part and the covering part form a geometric figure with the closed cross section, and part of light emitted by regions, adjacent to the frames, of the display regions arrives at the gap eliminating device, is refracted and reflected by the gap eliminating device, and enters the eyes of a user.

The invention relates to method and device for drawing geometric figures. The method comprises the following steps of: on the basis of forming a line segment by two triangles, using triangles to represent a preset figure type to be drawn; after recognizing a start point and a finish point clicked by a mouse, calculating to determine each triangle for forming the preset figure type according to the type, line width, start point position coordinates and finish point position coordinates of the preset figure; and drawing each triangle by a triangle drawing function interface in Direct X which has high support for Windows and simple use and supports hardware acceleration. Especially after each geometric figure is represented by triangles by fully making of a display card, a plurality of advantages of the Direct X can be effectively utilized, and therefore the scheme of the invention can effectively enhance the efficiency of drawing two-dimensional figures.

The invention provides a method for detecting a shape containing random line section combination, which comprises the following procedures: extract image edge from image and calculate the gradient direction of edge point; carry out voting operation for the calculated edge point to generate a voting image; detect the feature of partial shape to be detected via the voting image; compare the parameters about the shape feature with the shape parameters listed in the shape parameter form to determine the shape contained in the image. Therefore, the invention is able to automatically detect and recognize a plurality of shapes contained in image.

The invention provides a thermopile infrared detector and a manufacturing method of the thermopile infrared detector. The thermopile infrared detector comprises a substrate, a dielectric supporting film, a thermopile, a metamaterial structure, a middle dielectric layer and a metal micro structure layer, wherein a cavity is formed in the substrate, the dielectric supporting film is located above the cavity and supported by the substrate, the thermopile is located on the dielectric supporting film above the cavity, the metamaterial structure is located above the thermopile and comprises a metal plane reflecting mirror, the middle dielectric layer is located on the metal plane reflecting mirror, the metal micro structure layer is located on the middle dielectric layer and comprises one or more structural period units, and each structural period unit comprises one or more geometric figure units having the light adsorption enhance effect within the infrared spectrum range. Due to the thermopile infrared detector, perform absorption within the infrared band broad spectrum range can be achieved, the infrared adsorption rate and the responding rate of the thermopile infrared detector can be improved, and the manufacturing method is compatible with a conventional CMOS technology.

The invention discloses a fusion method of building BIM model and live-action three-dimensional model. The fusion and conversion process mainly comprises model reconstruction, geometric information conversion, model three-dimensional registration and semantic mapping. The fusion method comprises the steps that firstly, a building BIM model is split, and json attribute files and ifc geometric filesof all components are generated; then, intermediate format exchange is carried out, and ifc is converted into obj; obj is converted into glTF, and three-dimensional geometric figure data transmissionis further achieved; then attributes and geometric data are connected, and glTF and json generate b3dm; and finally, a data description file tileset.json are added, and the data description file tileset.json and b3dm are converted into 3DTiles data. According to the method, the semantic attribute characteristics in the BIM original model are reserved while the geometric figures are completely expressed, and the spatial positions of the two models are unified in the same environment, so that an internal and external integrated display effect is achieved.

A system to track a three-dimensional position and an orientation of a movable object and associated methods are provided. The system includes a tracker having an optically trackable body adapted to connect to the movable object. A plurality of optical indicators are connected or mounted to the optically trackable body to form a plurality of geometric figures. A plurality of obfuscating flanges optically separate the optical indicators from each other to prevent each of the optical indicators from becoming optically coincident with another optical indicator when viewed along a preselected viewing path. The system also includes an apparatus to track the tracker having an optical detector to simultaneously detect the three-dimensional position of at least three of the plurality of optical indicators and a determiner to determine the three-dimensional position and orientation of the optically trackable body from the position of the optical indicators.

The invention relates to a mask image defection detection method and a detection system thereof. The method comprises the following steps: step of obtaining a mask image-obtaining a mask image to be detected and a normal mask image; step of feature extraction and format conversion-extracting edge characteristic and converted it as geometric figure format to be stored; step of filling-filling the blank area of the rectangular edge contour of the geometric figure; step of data merging-carrying out figure superposition; step of contour simulation-carrying out the contour simulation of wafer; step of critical dimensions analysis of the simulated contour-measuring the critical dimensions and calculating the difference of critical dimensions; and step of judge-judging whether the mask defection restoration is succeed or not through the difference of critical dimensions. The invention further relates to a mask image defection detection system. The method and system in the invention is simple and practicable, and has a substantial effect, thus the lithography mask production cost of 45 nm or higher nanometer level lithography technology is effectively reduced.

The present invention provides a defect identification method and system. The method comprises: obtaining an image to be detected and a template image; determining a standard image in the template image, wherein the standard image is a set of an area covered by the minimum external geometric figure of a detection object, an area covered after the minimum external geometric figure of the detection object expands outwards with a preset size or an area covered by the minimum external geometric figure of each element; searching out an area having the most similarity to the standard image from the image to be detected according to the standard image, and determining the area as an area to be detected; converting the area to be detected as an image consistent to the standard image; and comparing the standard image with the area to be detected, determining the area having defects. The defect identification method can identify whether there are defects in the area to be detected and can obtain the concrete positions of the defects.

The invention is suitable for the technical field of intelligent detection, and provides a grabbing position detecting method and device and a mechanical arm. The method includes the steps that the mechanical arm obtains first image information and second image information of a target object at the first position and the second position correspondingly, and a three-dimensional geometric figure ofthe appearance of the target object is determined; if the three-dimensional geometric figure is a regular geometric figure, the grabbing position of the target object is determined according to the geometric center of the geometric figure; or at least two feature points of an irregular geometric figure are obtained, and the grabbing position of the target object is determined according to the feature points. In the process, according to the image information, obtained at different positions, of the target object, three-dimensional geometric figure of the appearance of the target object is determined, and the accuracy of the detected appearance of the target object is improved; and different methods are adopted for target objects with different appearances for determining the grabbing position, the appropriate grabbing positions are found quickly and accurately according to self features of the target objects, and the successful grabbing rate of the mechanical arm is improved.

Vertices of an annotation are projected onto a surface of a (2D or 3D) model and reconnected to preserve the original appearance of the annotation. The result of our method is a new set of geometry for the annotation that geometrically conforms to the surface of the model. A plane is defined by the midpoint of the original line segment and the two projected vertices. This plane is used to create the new line segments that conform to the surface, e.g. by doing a “surface walk” between the projected points along the line defined by the intersection of the plane and the surface.

The invention relates to an automatic detecting and imaging method of a hyper-acoustic phased array of a weld joint in a complex space. The automatic detecting and imaging method comprises the following steps: 11) determining a scanning trace according to a three-dimensional CAD model of the complex space; 12) clamping a hyper-acoustic phased array transducer with a six-shaft manipulator to track and scan the weld joint along the determined scanning trace, so as to obtain detected data and a detected result of the weld joint, and displaying the detecting result of the weld joint in a three-dimensional weld joint figure. As the manipulator is used in the weld joint detection, high-efficient automatic detection is realized; the detected result is displayed visually into the three-dimensional geometric figure of a workpiece by applying the computer three-dimensional visualization technology, so that detectors can position and quantify defects conveniently.

The invention provides a splicing exposing method for a photo-etched large-size CCD (Charge Coupled Device) chip, which aims at overcoming defects such as deformation, incoherence, and circuit widening or narrowing at the joint of geometric figures corresponding to adjacent CCD splicing chip circuit structures in the splicing exposing method for the photo-etched large-size CCD chip in the prior art. According to the splicing exposing method for the photo-etched large-size CCD chip, each CCD splicing chip is independently exposed in a splicing manner. The splicing exposing method is characterized in that an overlay region which has the width of 0.1 micrometer and is overlapped with a next photo-mask plate is arranged at the splicing side of the figure of the last photo-mask plate, and furthermore, 0.1*0.1-micrometer square compensation gaps are formed in the end heads of the geometric figures in the overlay region. The splicing exposing method has the beneficial technical effects that the defects such as the deformation, the incoherence, and the circuit widening or narrowing at the joint of the geometric figures corresponding to the adjacent CCD splicing chip circuit structures can be effectively avoided, and the performance or the quality of the large-size CCD chip can be effectively improved.

The invention relates to a method for controlling three-dimensional (3D) dynamic geometric figure data information label display in a computer system, and the method provided by the invention comprises the following steps: firstly generating a label parameter of labeled 3D dynamic geometric figure data information; then generating label figure data information based on the label parameter; generating the label texture polygon data information based on the label figure data information; and finally displaying figures which are represented by the label texture polygon data information and the labeled 3D dynamic geometric figure data information simultaneously so as to realize the control on the 3D dynamic geometric figure data information label display. By using the method for labeling the 3D dynamic geometric figure data information in the computer system, the label can form an organic integer with the geometric figure to flexibly and dynamically label a 3D scene with high generality and the render effect in match with the scene; and better user experience can be provided since a user can distinguish the 3D scene conveniently. The method is simple and convenient in application mode, low in realization cost and wide in application range.

The present invention employs the notion of a Chinese writing brush in moving a geometric figure to produce a style of calligraphy, where the area of the geometric figure is large or small, then the strokes of a character are thick or thin. Hence the purpose is that the variance of the strokes of a character can be achieved using the present invention. The present invention only decides a moving path for the strokes of a character and the size of a geometric figure at starting points and end points, and then moves the geometric figure along the moving path, where the area the geometric figure passes is the style of calligraphy.

Model zone data and model subzone data is employed to simplify calculations for determining where and/or when a boundary crossing event has occurred. A system for detecting a boundary crossing event employs a memory and a processor. The processor in one embodiment is configured by the memory to perform the steps of sensing current position; comparing the sensed current position to model zone data to determine presence within a geometric figure constructed around a boundary crossing point; comparing the sensed current position to model subzone data to determine presence within a first portion of the geometric figure; comparing the sensed current position to model subzone data to determine presence within a second portion of the geometric figure; and detecting a boundary crossing event as a result of movement from the first portion of the geometric figure to the second portion of the geometric figure.

The invention relates to an automatic image measuring system, belongs to a computer system for automatically measuring a workpiece by adopting a mode of measuring a workpiece image, and is mainly used for observing, measuring and analyzing a workpiece product. The automatic image measuring system comprises an image display module, a measuring module, a recording module, a data analysis module and a report output module, wherein the image display module is used for capturing the workpiece image and displaying a structure of each part of the workpiece; the measuring module is used for carrying out shape and position measurement on the workpiece image displayed in the image display module by a geometric figure measuring tool; the recording module records a measuring result, displays the measuring result in a figure and data mode and records a measuring process in a DXF file format; the data analysis module analyzes measuring data and comprises graphics primitive tolerance judgment and an SPC data graph; and the report output module is used for exporting the measuring data and an analysis result. The system adopts a modular design, has high portability and updating efficiency, has functions of automatic shooting, automatic focusing, automatic light source control, SPC data analysis and the like, greatly improves measuring efficiency and acquires more comprehensive analysis data.