175 results about "Virtual plane" patented technology

The invention provides an aircraft refueling virtual-real combined practical training method and platform based on AR and scrapped equipment, and relates to the technical field of aircraft refueling training, and the method comprises the steps that a processing module loads digital twin scene data according to a training subject; the AR display module carries out space registration and superposition on the virtual airplane model, the virtual instrument interface and real scrapped refueling equipment; collecting operation action data of the trainee in real time; inputting the operation action data into the digital twin model, updating the state information of the virtual refueling operation, and sending the state information to an AR (Augmented Reality) display module; the AR display module displays the state information in an overlapping manner; when the butt joint operation is carried out, the relative position and posture of the physical joint and the physical refueling panel are monitored in real time, the correctness of the operation is judged, and the result is displayed through the AR display module; and the processing module records, analyzes and generates a quantitative evaluation report. The method can effectively solve the problems that pure virtual training lacks sense of reality, and pure physical training is high in cost and high in risk.

The invention discloses a rapid topology sampling method and device for a large-scale constellation in an unreliable space environment, and mainly solves the problem of low sampling efficiency in the prior art. According to the implementation scheme, satellite constellation configuration parameters are obtained; different orbit link establishment modes of all satellite nodes under different distortion factors are determined; determining distribution modes of all satellite nodes on a virtual plane under different constellation configurations; judging whether the satellites have synchronism in the critical latitude region crossing event or not, and judging whether topological dynamics can be caused when the first orbit satellite and the tail orbit satellite cross the critical latitude region or not; automatically calculating the number and length of topology snapshots of constellation distortion topology in an orbit period according to a different orbit link establishment mode, a distribution mode of satellite nodes on a virtual plane and a topology dynamic result, and determining a distribution rule of inter-satellite topology snapshots; and converting a calculation result into an inter-satellite topology sampling time point and a corresponding topology snapshot length according to the distribution rule. The method is high in sampling efficiency and low in use threshold, and can be used for design and optimization of a large-scale distorted topological constellation network protocol.

A filter cleaning device (1) is provided. The device comprises a holder (100), a gas distributing pipe (200), a counterweight (300) and a swivel (400). The swivel is rotatably connected to the holder. The gas distributing pipe and the counterweight are connected to the swivel to allow a rotational sweeping motion of the pipe and the counterweight around a longitudinal centre axis of the holder. The pipe and the counterweight are arranged diametrically opposite each other on the swivel. The pipe comprises along a longitudinal extension thereof a first plurality of gas emitting holes configured to allow emission of a gaseous cleaning flow with an angle of 0-15 degrees in view of a virtual plane (VP) spanned by the pipe and the longitudinal centre axis of the holder. Further, the pipe comprises along the longitudinal extension thereof a second plurality of gas emitting holes configured to allow emission of a gaseous propelling flow with an angle of 75-105 degrees in view of said virtual plane. Also, a gas purification system (1000) using such filter cleaning device is provided.

A method for manufacturing monocrystalline silicon for growing monocrystalline silicon while a horizontal magnetic field is applied to a silicon melt, using a monocrystalline silicon manufacturing apparatus comprising a crucible and a heating device having a hollow cylindrical shape surrounding the crucible. The heating device comprises a first and a second heat-generating section, both having a hollow semi-cylindrical shape and the same heat-generating characteristics. The heating device is arranged such that when the heat-generating sections produce heat with different heat-generating quantities, the heating quantities of the first and second sections of the crucible are different. The first and second sections are arranged on either side across a vertical virtual plane that includes a central axis of the crucible and a central magnetic field line of the horizontal magnetic field.The process involves performing a first heating and generation cycle while the heat generation sections produce heat with the same heat generation quantity, and a second heating and generation cycle while the heat generation sections produce heat with different heat generation quantities.

A wire electrical discharge machining (EDM) device comprises the following: a pair of wire parallel guide rollers arranged on both sides of a workpiece to hold the workpiece between them, each of these rollers having a plurality of wire guide grooves formed at equal intervals on an outer circumferential surface, the plurality of wire guide grooves causing a plurality of running cutting wire sections to fit into them and constraining the movement of the plurality of cutting wire sections; parallel wire extension position measuring units (52a, 52b) which measure a distance between a measuring reference surface set parallel to a virtual plane containing the plurality of cutting wire sections and a wire electrode forming the plurality of cutting wire sections;a wire guide groove detachment detection unit (53) that detects the occurrence of a change in distance based on a measurement result obtained from the parallel wire extension position measuring units (52a, 52b); and a wire condition determination unit (54) that determines, based on the detection result obtained from the wire guide groove detachment detection unit (53), whether it is a wire detachment condition in which at least one of the cutting wire sections has detached from the wire guide groove, or a wire contact condition in which all cutting wire sections are in contact with the wire guide grooves.

The invention discloses an AUV (Autonomous Underwater Vehicle) pose correction method and system based on perspective conversion and a storage medium, and belongs to the field of underwater robots. The method comprises the steps that an underwater circular light source lamp array image is shot through a monocular camera, and initial circle center feature points are extracted after preprocessing and contour screening; using a P3P algorithm to preliminarily solve the relative pose and constructing a perspective transformation matrix; carrying out ellipse fitting on the contour and sampling on an ellipse, and projecting sampling points to a virtual plane through inverse perspective transformation; calculating an average circle center coordinate on the virtual plane, and re-projecting the average circle center coordinate to the image plane to obtain a corrected feature point; and finally, calculating a high-precision final pose by using the correction point through a P3P algorithm. According to the method, the virtual world plane is constructed by adopting a perspective conversion-based method with relatively small operand, the circle center coordinate is obtained in a circle correction mode by utilizing the characteristic that the inclination angle between the virtual world plane and the real world plane is relatively small, the influence of an eccentric distance phenomenon on the extraction of the circular target feature point is reduced, and the AUV pose resolving precision is effectively improved.

A method and system for continuous aerial handwriting stroke recognition in extended reality includes: sampling over time to acquire the three-dimensional position sequence of key finger points during user writing and the 6-DOF pose information of an XR computing device at the sampling time; constructing and training a lightweight neural network model, the model flow of which is as follows: preprocessing the input data and constructing kinematic features, then passing the kinematic features through a deep separable temporal convolutional network to output the writing probability and boundary probability at each sampling time, with the boundary probability used for auxiliary supervision during training; passing the sampled data through the trained lightweight neural network model to infer and output the writing probability at the sampling time, and extracting connected segments according to a threshold to recover the stroke segment set, thereby achieving visual interaction with the user. This invention relates to the field of information technology and can automatically identify the position of writing strokes and their boundaries from continuous hand movements without relying on virtual plane constraints or excessive reliance on explicit switching actions.

The present invention provides an end capped optical fiber that can reduce the angular misalignment of the optical axis of a collimated light beam. [Solution] The optical fiber with an end cap comprises an optical fiber and an end cap having a first surface connected to the end face of the optical fiber, a second surface located opposite the first surface, and a side surface connecting the first and second surfaces. The end cap includes a convex lens, the second surface includes the convex lens surface, and the side surface includes an outer surface surrounding the optical axis of the convex lens. The angle formed by each of the two intersecting lines between the virtual plane containing the optical axis and the outer surface with respect to the optical axis changes as the virtual plane rotates once around the optical axis.

The present invention provides a shift device and a projector that can suppress the tilt of a projection optical device with respect to a plane perpendicular to the optical axis. [Solution] The shift device is a shift device that moves a projection optical device that projects an image in a first direction perpendicular to the optical axis of the projection optical device, and comprises a first moving member having a first reference part for moving the projection optical device, a frame that movably supports the first moving member, a first drive unit that applies a first driving force to the first moving member to move the first moving member along the first direction, and a first restricting surface that restricts the movement of the first moving member along the first direction by contact with the first reference part, wherein the first moving member includes a first load region on which the first driving force from the first drive unit acts, and the first restricting surface and the first load region are arranged on the same first virtual plane perpendicular to the optical axis.

A light emitting device in which a first substrate including a first semiconductor substrate and a first wiring layer, a second substrate including a second semiconductor substrate and a second wiring layer, and a light emitting layer are stacked. The light emitting layer is arranged between a structure including the first substrate and the second substrate and a predetermined virtual plane. At least one of the first wiring layer and the second wiring layer includes a pad electrode. The light emitting layer and the structure include an aperture that exposes the pad electrode to the virtual plane.

An electrical connection unit according to one embodiment comprises: a plurality of first modules each comprising an electronic component and a first rigid member on which the electronic component is mounted; a second rigid member on which the plurality of first modules are mounted; a wiring member connected to the plurality of first modules; and a fastening member that fastens the electronic components and the wiring member. The second rigid member extends in a first direction and a second direction intersecting the first direction. The fastening member is detachably attachable to the electronic components from a direction along a virtual plane formed by the first direction and the second direction. The wiring member is fixed to each electronic component by the fastening member. The second rigid member has a movement region in which the fastening member can move, said movement region being positioned between the electronic components and the outer edge of the second rigid member in the attachment / detachment direction of the fastening member with respect to the electronic components. The second rigid member has the plurality of first modules mounted thereon at positions away from the movement region.

A bank of a memory device may be divided into column planes. Each column plane may be associated with column selects. In some examples, one or more physical column planes may be selectively configured to store metadata. When the memory device is configured not to store metadata, the column selects may be arranged into virtual column planes to allow data to be stored in physical column planes used for metadata. The physical column planes may be arranged into virtual planes to store the data. Different mapping of the virtual planes to the physical planes may be used.

The invention discloses an electric connector and electronic equipment, and relates to the technical field of electric connectors, and the electric connector comprises a circuit board which is provided with a signal via hole, a ground via hole and a grounding plane connected with the ground via hole; the conductive terminals are electrically connected with the signal through holes of the circuit board, and multiple groups of conductive terminals are arranged; the shielding structure is arranged between two adjacent groups of conductive terminals; the common ground structure is connected with the plurality of shielding structures; the grounding structure comprises at least one group of abutting parts, each group of abutting parts comprises a plurality of abutting arms connected with the common ground structure and the grounding plane, the abutting ends of the plurality of abutting arms extend towards the direction close to each other, and the fixed ends of the plurality of abutting arms are located on the same virtual plane parallel to the circuit board. The projections of the abutting ends of the abutting arms on the virtual plane are arranged close to the center of the connecting line of the fixed ends of the abutting arms on the virtual plane. According to the technical scheme, the suppression effect on signal crosstalk is improved.

Treatment instrument (12) comprising: a first treatment body (344) having a treatment surface (352) to be used as a high-frequency electrode and configured to receive, together or separately, a high-frequency energy and another energy that differs from the high-frequency energy input into the treatment surface (352); and a second treatment body (402) configured to treat a treatment target in conjunction with the treatment surface (352), wherein the second treatment body (402) comprises: a contact section (462) extending along a longitudinal axis (L2) and possessing an electrically insulating property; and a first surface (452) which is used as the first high-frequency electrode, wherein: the first surface (452) borders the contact section (462) in a first lateral direction (W1) perpendicular to the longitudinal axis (L2), the contact section (462) faces the treatment surface (352) of the first treatment body (344), wherein the contact section (462) is configured to move between an open state in which the contact section (462) is separated from the treatment surface (352) along opening and closing directions, and a closed state in which the contact section (462) is closed relative to the treatment surface (352), and the contact section (462) is configured to be brought into contact with the treatment surface (352) in the closed state, and the first surface (452) is separated from the treatment surface (352) in both the open and closed states and comprises a first near edge (482a) of the first surface (452), wherein the first near edge (482a) is located near the contact section (462); and a first outer edge (482b) which is spaced from the contact section (462) from the longitudinal axis (L2) in the direction of a first side surface (384a) of a treatment section (326) in the first width direction (W1), and Assuming that a virtual plane (VP) is defined such that in the closed state it is perpendicular to the opening and closing directions and passes through the first near edge (482a) of the first surface (452), at a distance between the virtual plane (VP) and the first surface (452) a distance between the first outer edge (482b) and the virtual plane (VP) is greater than a distance between the first near edge (482a) and the virtual plane (VP).

A wiring board according to the present disclosure comprises: an insulating substrate that has a first surface and a second surface on the opposite side from the first surface; a first pad and a second pad that are positioned on the first surface; a first circuit conductor that has a first end portion that is connected to the first pad and a second end portion that is positioned closer to the second surface side than the first end portion; a second circuit conductor that has a third end portion that is connected to the second pad and a fourth end portion that is positioned closer to the second surface side than the third end portion; and a third circuit conductor that connects the second end portion and the fourth end portion. The first circuit conductor and the second circuit conductor have a circuit structure of the same shape as each other, or have a plane-symmetric circuit structure that has a virtual plane that perpendicularly intersects a virtual straight line connecting the second end portion and the fourth end portion as the plane of symmetry.

The invention discloses a control method for suppressing an aircraft wheel speed interference signal, and belongs to the technical field of aircraft brake control. According to the method, in the braking process, firstly, the airplane wheel speed vw0 at the t0 moment is recorded, and the virtual airplane speed vc0 is generated; at the moment t1, if the increment of the airplane wheel speed vw1 relative to the vw0 is larger than a preset threshold value delta, a virtual airplane speed vc1 is generated in a transient state, a to-be-confirmed identifier is set, and meanwhile the vc0 is kept effective continuously; and at the moment t2, if the reduction amount of the airplane wheel speed vw2 relative to the vw1 is larger than a preset threshold value delta j, the increment at the moment t1 is judged to be a false interference signal, the vc1 is cleared away, and the effectiveness of the vc0 is recovered. According to the method, the pulse type interference characteristic of increasing first and then decreasing is recognized, accurate filtering of instantaneous increasing distortion of the airplane wheel speed is achieved, braking pressure loss or anti-skid faults caused by the instantaneous increasing distortion are avoided, meanwhile, the real airplane wheel speed increasing process is not affected, and the braking efficiency is guaranteed.

We offer iron golf club heads that allow the sweet spot to be brought closer to the center of the face. [Solution] An iron golf club head comprising a face member and a head body 200 supporting the face member. The face member comprises a striking surface for striking the ball and a back surface opposite to the striking surface. The head body 200 comprises a receiving surface that supports the peripheral edge of the back surface of the face member, a frame portion 205 extending annularly on the back surface side of the face member to form a cavity, and a hosel 7 extending upward from the heel side of the frame portion 205 and defining a virtual hosel central axis. A cavity contour line CC is defined in a cross-section of the head body 200 in a virtual plane parallel to the striking surface, at a distance of 3 mm from the receiving surface to the rear of the head. In a rear view of the head in a direction perpendicular to the striking surface, the shortest distance D between the virtual hosel central axis CL and the cavity contour line CC is 16 mm or less.

A bank of a memory device may be divided into column planes. Each column plane may be associated with column selects. In some examples, one or more physical column planes may be selectively configured to store metadata. When the memory device is configured not to store metadata, the column selects may be arranged into virtual column planes to allow data to be stored in physical column planes used for metadata. The physical column planes may be arranged into virtual planes to store the data. Different mapping of the virtual planes to the physical planes may be used.

An electric power tool includes a main body section with a battery compartment into which a battery is inserted from above and covered by a cover; an electric work section at a front of the main body section that operates using battery power; a front handle positioned above the main body section and ahead of the battery compartment, including a first part extending in a crossing direction intersecting front-rear and up-down directions; and a rear handle extending rearward from the main body section, wherein the battery stored in the battery compartment protrudes above a virtual plane that contacts upper regions of both the front handle's first part and the rear handle.

A camera calibration method includes: an image acquisition step of acquiring a plurality of calibration images obtained by capturing a dot pattern in which a plurality of dots are periodically arranged by a camera; a pattern information setting step of setting pattern information including information about arrangement of the dots; a feature point detection step of detecting a feature point indicating a position of the dot from the calibration image; and a parameter calculation step of calculating a parameter of the camera based on the feature point and the pattern information. In the feature point detection step, a dot center position is detected as the feature point based on a projected image of an outline of a dot image (DI) on an image plane (IP) of the calibration image projected to a virtual plane (VP) set in a three-dimensional space.

An optical fiber cable (10) comprises: first optical fibers (11) each provided with a first resin part (11b) that surrounds the outer periphery of a first glass optical fiber part (11a) including a core part, the outer diameter of the first resin part (11b) being a first fiber diameter; second optical fibers (12) each provided with a second resin part (12b) that surrounds the outer periphery of a second glass optical fiber part (12a) including a core part, the outer diameter of the second resin part (12b) being a second fiber diameter larger than the first fiber diameter. At least a portion of the first optical fiber (11) is disposed in a region (A) surrounded by the outer peripheral surfaces of two second optical fibers (12) adjacent to each other and a virtual plane (VS) that is in contact with the outer peripheral surfaces of the two second optical fibers (12) and that is on the same side with respect to the central axes of the two second optical fibers (12).

To provide a helmet that offers good ventilation while minimizing restrictions on appearance. [Solution] The helmet according to the present disclosure comprises a helmet shell, a first protective wall portion disposed inside the helmet shell and comprising a pair of front first walls that extend in a direction approaching the crown from the forehead and are formed on either side of a first virtual plane that includes the midline of the human head, a pair of rear first walls that extend in a direction approaching the crown from the back of the head and are formed on either side of the first virtual plane, and a first annular wall provided on the crown between the pair of front first walls and the pair of rear first walls, and an inner member comprising a right head protective wall portion provided on the right side of the head and a left head protective wall portion provided on the left side of the head.

If, in a virtual plane orthogonal to a drive axis (X1), a midpoint (MP) between the center of a drive-side base circle (34) and the center of a driven-side base circle (44) is defined as a working point of compression loading generated in the radial direction of the drive axis (X1), a direction orthogonal to a virtual line (VL) connecting two contact points, constituted of a first contact point (P1) and a second contact point (P2), at which a side surface of a driving spiral (33) and a side surface of a driven spiral (43) contact at an outermost circumferential side is defined as the loading direction (LD) of the compression loading, and the range over which the loading direction (LD) fluctuates during one revolution of a drive scroll (30) is defined as a fluctuation range (FR), a stator (13) defines a fixed axis (FX) inside a housing (60), the drive axis is defined by a rotor (14) and is set so as to separate from the fixed axis (FX) in the loading direction (LD) included in the fluctuation range (FR) when not actuated, and so as to match or approach the fixed axis (FX) when actuated.

To provide a helmet that offers good ventilation while minimizing restrictions on appearance. [Solution] The helmet according to this disclosure comprises a helmet shell, a first protective wall portion disposed inside the helmet shell and having a pair of first walls that extend from the forehead through the crown to the back of the head and are formed on either side of a first virtual plane that includes the midline of the human head, and an inner member having a right head protective wall portion provided on the right side of the head and a left head protective wall portion provided on the left side of the head.

This alignment mark comprises a first mark part and a second mark part. The mark parts have line segment elements having the same length and extending in a direction inclined relative to a first direction in a virtual plane when viewed in the direction perpendicular to the virtual plane. The second mark part is formed such that the line segment element thereof when viewed in the direction perpendicular to the virtual plane has a shape obtained by inverting the line segment element of the first mark part with a virtual line extending in a second direction perpendicular to the first direction in the virtual plane as an axis. The first mark part and the second mark part are formed such that the middle points of the line segment elements mutually coincide when the relative positional relationship between two workpieces becomes a prescribed positional relationship. Each of the line segment elements is formed such that, in the case where a component in the first direction is defined as a first component and a component in the second direction is defined as a second component, the length Lb of the second component is greater than the length La of the first component.

The present invention suppresses breakage of a trunk of a tube container when dropped, while suppressing intrusion of foreign matter inside of a cap.　In a tube container 1, a trunk 10 includes an opening 11 of a tubular body T formed by connecting one side end SE1 and another side end SE2 of one sheet S with each other. The opening 11 includes a connected end 111, which is a part of the portion where the one side end SE1 and the other side end SE2 are connected to each other. A cap 30 includes an engaging section 31 and a peripheral wall section 32. The peripheral wall section 32 extends from the engaging section 31 toward a shoulder section 22. The peripheral wall section 32 includes a first tip 321 and a second tip 322. The second tip 322 faces the shoulder section 22. The second tip 322 overlaps with a virtual plane P including a central axis C and the connected end 111. The shortest length from the second tip 322 to the shoulder section 22 is longer than the shortest length from the first tip 321 to the shoulder section 22.

The present invention provides a dispensing device that reduces the occurrence of unintended tip detachment while facilitating tip replacement. [Solution] The applicator has a peripheral wall portion that extends in a continuous or intermittent ring shape, the peripheral wall portion into which a part of the applicator can be inserted, and the portion surrounding the outside of a part of the applicator further has a first projection and a second projection that protrude inward from the peripheral wall portion, and when a virtual plane that is parallel to the direction of insertion of the applicator and includes the center line of the region enclosed by the peripheral wall portion is defined as a reference virtual plane, and the region located on one side of the reference virtual plane within the region enclosed by the peripheral wall portion is defined as the first region, and the region located on the other side is defined as the second region, the first projection and the second projection are formed at positions far apart in the direction of insertion of the applicator, and one of the first projection and the second projection is formed so that the whole fits within one of the first region and the second region, and the other projection is formed so that the whole fits within the other of the first region and the second region.

The invention provides a control method and system for an intelligent mobile terminal and the intelligent mobile terminal, and the method comprises the steps: determining a virtual plane in a climbing process of the intelligent mobile terminal according to stair parameters; acquiring a knee joint angle calculated based on data detected by a knee joint motor, a pitch angle calculated based on data detected by an inertial measurement unit (IMU), and the length of a thigh structural member; calculating the distance between the seat and the virtual plane based on the angle and length of the knee joint; calculating an angle difference based on a difference between the distance and an expected distance; a knee joint motor is controlled to conduct angle adjustment according to the angle difference value, and the seat is adjusted to the target height; the hip joint motor is controlled to conduct angle adjustment according to the pitching angle, so that the seat and the ground are kept within a preset included angle range. According to the method, the comfort and safety of the target object carried by the intelligent mobile terminal in the stair climbing process can be improved.

The present invention proposes a display module and a display system comprising this display module. The display module includes: a backlight module; a first prism layer arranged on the backlight module and comprising several first cylindrical prisms extending along a first direction; a second prism layer arranged on the first prism layer and comprising several second cylindrical prisms extending along a second direction transverse to the first direction; and a display panel arranged on the second prism layer. The first cylindrical prisms project away from the backlight module and have a triangular first prism cross-section in a virtual plane with the first direction as its normal direction.The second cylindrical prisms protrude from the backlight module and, in a virtual plane with the second direction as its normal, exhibit a triangular second prism cross-section. The vertex of the second prism cross-section, in its perpendicular projection onto the base, is offset in the first direction relative to the center of the base.

A state confirmation system comprises a collection device, a storage device, and a display terminal. The collection device collects operation data including position data pertaining to a traveling vehicle that travels in a logistic facility. The storage device stores a tag information database in which tag information that indicates the state of that traveling vehicle and is designated from a user, and identification information pertaining to the traveling vehicle, are associated with each other. The display terminal receives the operation data, causes a model of the traveling vehicle to travel on a virtual plane or in a virtual space on the basis of the operation data, and displays operation video in which the tag information associated with the traveling vehicle is displayed so as to be attached to the model of the traveling vehicle.