34 results about "Radial line" patented technology

The invention discloses a multi-axial mechanical accelerometer and a measuring method, and relates to the technical field of mechanical accelerometer equipment.The multi-axial mechanical accelerometer comprises a dome shell, a touch type alarm is installed in the dome shell, a transverse shaft is installed in the dome shell in the radial line direction of the dome shell, and the transverse shaft is sleeved with a conical sleeve; the conical sleeve is in sliding fit with the transverse rod, and the transverse shaft is sleeved with a first reset spring used for driving the conical sleeve to be close to the touch type alarm. The first base is installed at the bottom of the dome shell, a limiting assembly used for limiting the conical sleeve to move in the radial line direction is installed in the bottom of the first base, and the limiting assembly can move in the axis direction in the first base; when the multi-axial mechanical accelerometer works, acceleration signals in the axial direction and acceleration signals in the axial direction of other intersecting coordinate systems are responded, acceleration values in the axial direction of the multi-axial mechanical accelerometer are measured, an over-limit alarm state is indicated, and an alarm signal is output.

A sole portion for an item of footwear having a plurality of cleat systems, cleats, or plate structures that dissipate force by deflecting, deforming, displacing or otherwise shifting under selected force, or by facilitating cleat movement around a radial line during ground engagement.

The utility model discloses a cable grid bridge system comprising a turning bridge which is composed of a plurality of bridge units arranged in a divergent manner to form an inner arc structure and an outer arc structure. Each bridge unit comprises two parallel U-shaped wefts and a plurality of radial line units, each U-shaped weft is composed of an outer vertical beam, a bottom beam and an inner vertical beam, and each radial line unit comprises a bottom radial line unit, an outer diameter line unit and an inner diameter line unit which are respectively connected to different parts of the corresponding U-shaped weft; the outer diameter line units are connected to form a continuous bridge outer diameter line; the inner vertical beams of the adjacent bridge units abut against each other, the inner diameter line unit is provided with two ends, reinforcing ribs are welded between the bottom beams, a bridge bottom diameter line is formed, and therefore the turning bridge system is low in cost and convenient to manufacture.

The present invention provides a railway wheel in which the hub portion has excellent toughness. The railway wheel of the present disclosure includes a rim portion, a hub portion having a through-hole, and a plate portion. The chemical composition of the railway wheel is: C: 0.60 to 0.80%, Si: 1.00% or less, Mn: 0.10 to 1.50%, P: 0.050% or less, S: 0.030% or less, N: 0.0200% or less, and the remainder consisting of Fe and impurities. In a cross section of the hub portion after the hub portion is cut with a plane containing the central axis in the direction of the central axis of the through-hole, in a 15 mm x 15 mm region defined as a rectangular region by a plurality of axial line segments arranged at 15 mm intervals in the radial direction of the railway wheel from the inner peripheral surface of the through-hole in parallel with the central axis and a plurality of radial line segments arranged at 15 mm intervals in the direction of the central axis from the surface of the hub portion on which the opening of the through-hole is formed perpendicularly to the central axis, the average C concentration of each rectangular region in the cross section of the hub portion is less than 0.90 mass%.

An image processing device detects a spicula candidate region having a radial line structure from each of a plurality of tomographic images indicating a plurality of tomographic planes of an object, selects, as a tomographic image group, a plurality of the tomographic images corresponding to a plurality of the spicula candidate regions indicating the same radial line structure among a plurality of the detected spicula candidate regions, and generates a composite two-dimensional image using the selected tomographic image group.

This invention relates to the field of chip inspection technology, and more particularly to a chip non-destructive testing system based on embedded current scanning. The system includes a current scanning module, an information acquisition module, a data analysis module, an abnormal scanning region generation module, and a scanning path generation module. Instead of simply performing a higher-density secondary scan of the entire chip, this invention intelligently filters out abnormal scanning regions requiring special attention based on the initial scan results and calculates their scanning priority. This allows valuable inspection time and computing resources to be concentrated on the most suspicious and severe areas, avoiding unnecessary repeated scanning in normal areas. The system dynamically selects the optimal scanning path based on the regularity of the region shape; for example, parallel lines are used for regular regions, and radial lines are used for irregular regions. This makes the scanning path more closely match the geometric features of the defect, obtaining a more complete region characterization with fewer scanning points, resulting in higher path planning efficiency.

The name of the product incorporating the design is a "Drug Delivery Device." The product incorporating the design is for use as a drug delivery device. The essential feature of the design is the shape of the product incorporating the design. The dashed lines in the figures illustrate portions of the drug delivery device that are not part of the design sought to be registered. The thin parallel and radial lines in the figures represent contours and surfaces only and do not illustrate surface ornamentation of the product. The diagonal shading in the figures indicates transparent or translucent surfaces. Further, with respect to Design 3, dashed lines formed by unevenly spaced dashes (i.e., dash-dot lines) indicate the boundary between the sought and unsought portions of the design. 3.1) Perspective View; 3.2) Front View; 3.3) Rear View; 3.4) Right Side View; 3.5) Left Side View; 3.6) Top View; 3.7) Bottom View

The invention relates to a method (218), a computer program and a device (110) for determining at least one refractive value (216) of an eye (112) of a person (114), and to an associated method (210) for producing at least one ophthalmic lens (212) for an eye (112) of a person (114). The method (218) comprises the steps of: a) (220) displaying a visual stimulus (120) to an eye (112) of a person (114), where the visual stimulus (120) comprises a plurality of concentric radial lines (126, 126 ',...), where each radial line (126, 126',...) has a different angle value (128, 128 ',...) with respect to a center (130) of the visual stimulus (120); b) (224) recording a response of the person (114) to the visual stimulus (120); and c) (226) determining at least one refractive value (216) of the eye (112) of the person (114) by evaluating the response of the person (114) to the visual stimulus (120), where step a) (220) comprises: each radial line (126, 126 ',...) being projected to the eye (112) of the person (114) at a particular out-of-focus plane, thereby providing a particular diopter to the eye (112) of the person (114), and where the refractive value (216) of the eye (112) of the person (114) is determined by evaluating the response of the person (114) to the visual stimulus (120). Step b) (224) includes recording a response of the person (114) to the visual stimulus (120) indicative of a particular radial line (144) at a particular angle value (146) appearing with a maximum definition (148) to the eye (112) of the person (114).

This product is a vacuum cleaner with a built-in mop. This product is used for cleaning floors. The distinctive feature of this design lies in the shape of this product. Figure 2.7 best illustrates the distinctive feature of this design. The parts indicated by dashed lines in the figure are not parts of the design for which registration is sought. The parallel and radial lines in the figure merely represent the outline and do not illustrate the decoration on the surface of this product. In Figure 2.1, the diagonal shaded lines of the elliptical part of the handle represent the transparent material, and the rectangular part inside the elliptical part represents the display. 2.1) Front view; 2.2) Rear view; 2.3) Top view; 2.4) Bottom view; 2.5) Right side view; 2.6) Left side view; 2.7) Perspective view; 2.8) Perspective view; 2.9) Enlarged view; 2.10) Reference drawing

The utility model discloses a lighting lamp, and belongs to the technical field of lighting product design. The illuminating lamp comprises a face ring, a lamp body and a connecting frame, the face ring is arranged on the connecting frame in a sleeving mode, the face ring and the connecting frame are in limiting fit in the axial direction of the face ring, and the connecting frame can rotate around the axis of the face ring relative to the face ring; the lamp body comprises a light-emitting part and a protective shell, the light-emitting part is arranged in the protective shell, the protective shell is movably connected with the connecting frame, and the protective shell can rotate around the radial line of the face ring relative to the connecting frame. According to the scheme, the problems that in the prior art, the number of parts of an illumination lamp is large, and the production cost is high can be solved.

The invention relates to a net rack reconstruction method for transforming a single-radiation line into a 2-1 single-ring network, and the method comprises the steps: recognizing at least two feeder lines in a single-radiation operation state in a power grid, obtaining the electrical parameters, load rates and wiring modes of the feeder lines, selecting the two single-radiation feeder lines with the load rate difference meeting a preset condition as a target transformation line, and carrying out the reconstruction of the two single-radiation feeder lines. A cable line is newly built from an intermediate node of a first target feeder line to be connected to an intermediate node of a second target feeder line, automatic section switches are additionally arranged on the two target feeder lines respectively to form a main section, and the two original single-radiation feeder lines are connected to form a 2-1 single-ring network structure through the newly built cable line and the additionally arranged automatic section switches. And an optical fiber communication network and a distribution automation terminal are configured to realize fault positioning, isolation and non-fault section power supply recovery functions.

The invention discloses a target grid calligraphy practicing method based on a Chinese character circular structure model. The method comprises the following steps: a) extracting a Chinese character structure circle; b) constructing a target lattice; c) mapping strokes; the invention relates to the technical field of calligraphy teaching, by introducing a Chinese character circular structure model, the system breaks through the neglect of a traditional rectangular grid system on geometrical characteristics of Chinese characters, and by means of target grids constructed by golden proportion concentric circles and equally-divided radial lines, curvature, retraction and density changes of the Chinese characters can be quantified more accurately, so that the accuracy of calligraphy teaching is improved. The scientificity and aesthetic feeling of the writing composition are improved; an RANSAC circle fitting algorithm and an error quantification feedback mechanism are adopted, quantifiable deviation indexes are provided for teachers and students, subjective evaluation in the teaching process is reduced, and teaching efficiency and evaluation objectivity are improved; moreover, through a standardized target lattice template and an image registration technology, the problem that different teaching materials and teachers are inconsistent in definition of'gravity center 'and'middle palace' is solved.

The name of the product incorporating the design is a "Drug Delivery Device." The product incorporating the design is for use as a drug delivery device. The essential feature of the design is the shape of the product incorporating the design. The dashed lines in the figures illustrate portions of the drug delivery device that do not form part of the design sought to be registered. The thin parallel and radial lines in the figures represent contours and surfaces only and do not illustrate surface ornamentation of the product. The diagonal shading in the figures indicates transparent or translucent surfaces. 6.1) Perspective View; 6.2) Front View; 6.3) Rear View; 6.4) Right Side View; 6.5) Left Side View; 6.6) Top View; 6.7) Bottom View

This product is a vacuum cleaner with a built-in mop. This product is used for cleaning floors. The distinctive feature of this design lies in the shape of this product. Figure 4.7 best illustrates the distinctive feature of this design. The parts indicated by dashed lines in the figure are not parts of the design for which registration is sought. The parallel and radial lines in the figure merely represent the outline and do not illustrate the decoration on the surface of this product. The diagonal shaded lines on the plane of the vacuum cleaner body in Figure 4.3 represent a display made of translucent material. The diagonal shaded lines in Figure 4.8 represent a water tank made of translucent material. 4.1) Front view; 4.2) Rear view; 4.3) Top view; 4.4) Bottom view; 4.5) Right side view; 4.6) Left side view; 4.7) Perspective view; 4.8) Perspective view; 4.9) Enlarged view; 4.10) Enlarged view; 4.11) Enlarged view; 4.12) Reference diagram; 4.13) Reference diagram

The application relates to an optimization method of a concrete rotating shell structure combining function and cost, and relates to the fields of building structure design and engineering cost, and comprises the following steps: taking a curved surface microelement, obtaining a balance formula based on rotating shell film theory, and obtaining a normal direction load q from radial film internal force and ring film internal force n and radial line direction load, combining the structural characteristics and stress formula of a hyperboloid concrete shell body, combining the wind load borne by the concrete shell body, respectively performing load combination on the bearing capacity and normal use limit state, optimizing the wall thickness according to the load, and obtaining a target function of the total price F of the concrete shell body structure, and optimizing the special structure of the rotating shell; high-performance self-compacting concrete is adopted, and the concrete pouring problem of a concrete shell structure with complex shape, dense reinforcement and thin wall is effectively solved. On the basis of meeting the building function requirement, the same volume is saved, the cost is saved, and the engineering cost is reduced.

An apertured article, insertion article and associated systems. The apertured article having an aperture, which has an aperture periphery, the aperture periphery having an aperture inner periphery and spaced aperture protrusions that extend radially outwardly from the aperture inner periphery to an aperture outer periphery. The aperture outer periphery is defined by distal edges of the spaced aperture protrusions. The aperture inner periphery is positioned along the circumference of an inner aperture reference circle, the inner aperture reference circle inscribing the aperture periphery, and the aperture outer periphery is positioned along the circumference of an outer aperture reference circle. As viewed along a radial line whose origin is at the center of the inner aperture reference circle, the aperture inner periphery can be positioned along 0.4 to 0.6 of the entire circumference of the inner aperture reference circle. The insertion article can be configured for insertion in the apertured article.

This invention discloses a high-frequency structure and field uniformity optimization method for an S-band multi-beam klystron. By coupling a radial line and a coaxial line at the middle of the right side of the inner wall of the output coaxial resonant cavity to form an axisymmetric structure, and by adjusting the width of the radial line and the inner and outer diameters of the coaxial line, the operating mode frequency and external quality factor meet the requirements, thus obtaining an output coaxial resonant cavity with field uniformity. This ensures that almost every beam in the multi-beam klystron experiences equal modulation, naturally suppressing the generation of reflected electrons in the output resonant cavity and significantly improving the device's performance.

The application provides a visual calibration device, a radial line calibration plate and a visual calibration method. The visual calibration device works in combination with the radial line calibration plate. The radial line calibration plate comprises a plurality of radial lines, and the center points of the radial lines are consistent with the center point of the radial line calibration plate. The visual calibration device comprises a robot, a shooting device and a processor. The shooting device is used to obtain a first image of the radial line calibration plate. The processor is used to capture any two radial lines in the first image and calculate first pixel coordinates according to the any two radial lines in the first image. The processor is further used to process the first pixel coordinates and calculate first physical coordinates. The processor is further used to control the robot to drive the shooting device to move and adjust the shooting angle or position of the shooting device according to the first physical coordinates.

This invention provides a method and system for converting elliptical ring images, relating to the field of image processing technology. The method includes: determining the elliptical ring parameters of an input target image containing an elliptical ring; wherein the elliptical ring parameters include the center coordinates of the elliptical ring, the major semi-axis of the elliptical ring, the minor semi-axis of the elliptical ring, the rotation angle, the starting angle, and the angle range; constructing an arc length-angle lookup table for the elliptical ring based on the elliptical ring parameters; determining the target angle corresponding to each rectangular column based on multiple rectangular columns contained in a preset rectangular image, the elliptical ring parameters, and the arc length-angle lookup table; determining the angular radial line corresponding to each target angle based on the rotation angle and the elliptical ring parameters; and sequentially mapping the pixels of the angular radial lines corresponding to each target angle to the rectangular image according to a preset direction to obtain the target rectangular image corresponding to the target image. This invention improves the accuracy of detection results for elliptical ring images.

The invention relates to the technical field of chip detection, in particular to a chip nondestructive testing system based on embedded current scanning. The system comprises a current scanning module, an information acquisition module, a data analysis module, an abnormal scanning area generation module and a scanning path generation module, the system does not simply carry out higher-density secondary scanning on a whole chip, but intelligently screens out an abnormal scanning area needing to be focused on based on a first scanning result, so that the accuracy of the abnormal scanning area is improved. The region scanning priority is calculated, so that precious detection time and calculation resources can be intensively input into the most suspicious and most serious region, and meaningless repeated scanning in a normal region is avoided; the optimal scanning path is dynamically selected according to the region shape rule degree, for example, a parallel line is used for a regular region, and a radioactive ray is used for an irregular region, so that the scanning path better fits the geometrical characteristics of the defect, more complete region representation is obtained by using fewer scanning points, and the path planning efficiency is higher.

The name of the product incorporating the design is a "Drug Delivery Device." The product incorporating the design is for use as a drug delivery device. The essential feature of the design is the shape of the product incorporating the design. The dashed lines in the figures illustrate portions of the drug delivery device that do not form part of the design sought to be registered. The thin parallel and radial lines in the figures represent contours and surfaces only and do not illustrate surface ornamentation of the product. The diagonal shading in the figures indicates transparent or translucent surfaces. 4.1) Perspective View; 4.2) Front View; 4.3) Rear View; 4.4) Right Side View; 4.5) Left Side View; 4.6) Top View; 4.7) Bottom View

The utility model discloses a roller internal and external diameter and height testing device, which comprises a testing seat provided with a cylindrical internal diameter measuring head arranged along the vertical direction and an annular external diameter measuring head which is arranged outside the internal diameter measuring head and is coaxial with the internal diameter measuring head, and the external diameter measuring head is provided with a through opening along the radial line direction, the outer surface of the inner diameter measuring head is uniformly provided with a plurality of first air holes. The inner surface of the outer diameter measuring head is uniformly provided with a plurality of second air holes. The top end of the plane seat is higher than the bottom surface of the opening of the outer diameter measuring head, and the plane seat is provided with an accommodating groove corresponding to the opening of the outer diameter measuring head; the height measuring head is provided with a first measuring part and a second measuring part, a third air hole is formed in the bottom surface of the first measuring part, a fourth air hole is formed in the top surface of the second measuring part, the third air hole is located above the top end of the roller placed on the plane seat, and the fourth air hole is located below the bottom end of the roller; according to the utility model, the problem of low detection efficiency of the inner diameter, the outer diameter and the height of the roller for the traditional air condition compressor can be solved.

The invention discloses a method for measuring multipoint stretch-bending forming deviation of a spaceflight profile frame and a sample plate used in the method, belongs to the technical field of spaceflight profile frame part forming, and aims to solve the problems that a traditional sample plate comparison method is low in precision and non-contact laser measurement is high in cost. The method comprises the following steps of: designing a special sample plate and a measurement process: engraving a concentric theoretical arc line (including an arc line smaller than the minimum applicable radius of the mold and larger than the maximum applicable radius of the mold) and a symmetric radiation line (coinciding with the axis of a T-shaped groove of the mold) on the sample plate; a rectangular measurement reference gap at the intersection of a radiation line and an arc line and pin holes (positioning parts for inserting cylindrical pins) with the same number as the arc line are formed; according to the measurement method, accurate measurement without special equipment is realized through part positioning, reference arc selection according to positive and negative deviations, caliper actual measurement, deviation conversion and symmetric averaging. The method is low in cost and high in efficiency, data can be directly provided for mold springback compensation and shape adjustment, and a'forming-measuring-correcting 'technical closed loop is formed.

This invention discloses a method, system, and medium for human fall detection based on multi-view geometry. The method includes: acquiring intrinsic and extrinsic parameters of multiple fixed cameras and a ground homography matrix; simultaneously acquiring images and obtaining a binary mask of the human body with global identifiers; determining radial lines based on the nadir points of each camera, adaptively selecting the optimal viewing angle camera, extracting foot and head image points, and calculating the horizontal position and vertical height using the homography matrix and geometric relationships; using multi-view ground homography constraints, mapping mask pixels in a reference view to other views for consistency verification, backprojecting verified pixels onto the ground plane to reconstruct the contact area and calculate the area; and fusing at least the temporal changes in height and contact area to determine whether a fall has occurred. This invention can accurately measure key physical quantities related to falls and has advantages such as strong robustness, high accuracy, good interpretability, and controllable hardware costs.

The application discloses a grating-loaded compact circular waveguide TM01-TE01 mode converter and belongs to the technical field of microwave waveguides. The structure comprises coaxial and bottom-to-top circular waveguide input sections, first transition sections, coaxial waveguide transition sections, reflective grating mode conversion sections and circular waveguide output sections; wherein the reflective grating mode conversion section comprises a radial line structure and a mode conversion transition section; the inner conductor of the radial line structure comprises a first second-order circular truncated cone, a transition cylinder and a second second-order circular truncated cone; the inner wall of the outer conductor of the radial line structure is provided with a plurality of curved surface metal reflective grating grooves which are uniformly arranged in the circumferential direction. The application combines the radial line theory, the reflective grating theory and the waveguide mode transmission theory, and has the advantages of compact structure, coaxial input and output ports, high conversion efficiency, large power capacity, easy processing and the like.

The application is suitable for the field of high-power antennas, and provides a high-power radial line antenna and a method for regulating a beam based on a coding array, which comprises: a plurality of adjustable radiation units in a rectangular structure, the radiation unit comprising: a coaxial radial line conversion structure, a coaxial line, a coupling probe, a spiral antenna and a radial line waveguide; the coaxial line is connected with the outside of the center of the bottom plate of the radial line waveguide; the coaxial radial line conversion structure is connected with the coaxial line below and is located in the radial line waveguide above and connected with the inside of the top plate of the radial line waveguide; a plurality of coupling probes are symmetrically arranged along the center line, each coupling probe is arranged in the radial line waveguide, and a part of each coupling probe penetrates through the top plate of the radial line waveguide and is exposed outside the radial line waveguide; the spiral antenna is arranged on the body of each coupling probe exposed outside the radial line waveguide and connected with the outside of the top plate of the radial line waveguide. The technical scheme provided by the application can effectively reduce the cost input and flexibly control the beam.

The application provides a lung bronchus voxel model optimization method for monocular SLAM dynamic modeling, which comprises the following steps: replacing the cavity center line with the key frame trajectory of a lung interventional surgery robot estimated by monocular SLAM; then extracting a bronchus voxel model radial section perpendicular to the robot trajectory at intervals of the minimum voxel edge length, and establishing a projection model of the model in the radial direction of the bronchus; then searching the occupied grid on the section based on a radial line segment search method, proposing a curvature consistency graphic interpolation method, and realizing the elimination of the redundant voxels and the filling of the surface pores of the bronchus model in the radial direction. Finally, based on the mapping relationship between the two-dimensional pixels and the three-dimensional voxel units, the section data is converted into a voxel map, and the optimized lung bronchus voxel model is obtained. The application can solve the problems of voxel redundancy and surface pores in the voxel model.

An indexing router base (100), includes a main body (102). The main body includes: an upper surface (110) and a lower surface (112); a central opening (114) through the main body; a raised guide ring (116) that protrudes upward from the upper surface and that surrounds the central opening; and a linear cleat (118) that protrudes downward from the lower surface, that is set apart from a center (114C) of the central opening, and that defines a long axis (118L) that is perpendicular to a radial line (124) originating at the center of the central opening.

The invention provides a shear type unlocking separation device, a dynamic test system and an unlocking force control method. The device comprises an unlocking bolt, a shearing protection sleeve and an auxiliary mechanism, the unlocking bolt comprises a first threaded section, an unlocking separation section and a second threaded section, two weakening grooves obliquely extending in the same direction are formed in the unlocking separation section, and through holes are formed in the tail ends of the sides, close to each other, of the two weakening grooves; a distance l is formed between the two through holes, an included angle beta is formed between the axes of the weakening grooves and the unlocking separation section, an included angle alpha is formed between the connecting line of the two through holes and the radial line of the unlocking separation section, and the two weakening grooves penetrate through the unlocking separation section; the weakening groove is filled with high-strength filler; the shearing protection sleeve is arranged on the unlocking separation section in a sleeving mode, and the auxiliary mechanism is connected to the second threaded section in a threaded mode. Rapid response and accurate control over unlocking force can be achieved, meanwhile, no harmful gas is generated in the separation process, and economical efficiency and environmental benefits are good.