376 results about "Virtual plane" patented technology

According to the present invention, it is possible to make the system exhibit the performance required for operation while suppressing costs or minimizing the impact on economic activity in the vicinity of the site. [Solution] The present invention is an operation system comprising: a real aircraft behavior information acquisition unit that acquires real aircraft behavior information from a real aircraft; a simulated real aircraft that simulates a real aircraft in a virtual space based on the real aircraft behavior information; an unmanned aircraft group simulator that calculates the behavior state of a mixed unmanned aircraft group that is a mixture of unmanned aircraft and virtual aircraft generated in the virtual space; a control command determination unit that generates control commands for at least the real aircraft, etc.; a display unit that displays and outputs the behavior state of the generated mixed unmanned aircraft group; and a real aircraft increase / decrease determination unit that determines whether to increase the number of real aircraft deployed in the operation area by replacing at least one of the virtual aircraft with a real aircraft, or to decrease the number of real aircraft deployed in the operation area by replacing at least one of the real aircraft with a virtual aircraft.

A screw nail includes a nail shaft portion extending along one direction, and a head portion whose diameter is enlarged along other direction orthogonal to an extension direction. A sharp tip end portion is formed on one end side of the nail shaft portion, and the head portion is formed at an end portion on the other end side. The nail shaft portion is formed with a screw thread, and the head portion is formed with an engaging portion capable of engaging with a rotary tool. A convex portion protruding along an axis direction of the nail shaft portion is formed on an end surface of the head portion. A concave portion that is concave with respect to the convex portion is formed between the convex portion and the engaging portion. A virtual plane specified by vertexes of the convex portion is a plane orthogonal to the axis direction.

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 relates to the technical field of AR (Augmented Reality), in particular to an intelligent exhibition hall guide information method and system based on the AR technology, and the method comprises the following steps: traversing a scene graph of a 3D model based on a user triggering instruction and the 3D model of an exhibit, recognizing a grid object without child nodes as an independent part, and storing the independent part in the scene graph; reading the axial constraint and the surface fitting constraint associated with each part, and reversing the direction vector of the axial constraint; according to the method, the initial disassembly vector of each part is reversely calculated based on the internal axial and surface fitting constraints of the exhibit 3D model, and a dynamic decomposition view conforming to the mechanical logic and the assembly sequence is provided. Furthermore, in an iterative solution loop, the overlapping volume of a part bounding box is detected in real time, a repulsive force is applied, and a traction force is generated by introducing a virtual plane parallel to a user viewpoint, so that a layout in which all parts are clearly visible and do not shield each other can be dynamically generated.

A ramp support for a magnetic storage device includes a first ramp, having a first-ramp receiving end and a first-ramp surface, and a second ramp, having a second-ramp receiving end, offset laterally from the first-ramp receiving end, and a second-ramp surface. A first first-ramp portion faces and is angled toward a virtual plane. A second first-ramp portion faces and is angled away from the virtual plane. A third first-ramp portion faces and is angled toward the virtual plane. A first second-ramp portion faces and is angled toward the virtual plane, and a second second-ramp portion faces and is angled away from the virtual plane. In the direction along the virtual plane, the first second-ramp portion extends further than the first first-ramp portion and terminates at the same location relative to the plane as the second second-ramp portion, and the third first-ramp portion extends further than the second second-ramp portion.

The utility model provides a double-side coating device which comprises a first coating die head and a second coating die head, a coating outlet of the first coating die head and a coating outlet of the second coating die head are oppositely arranged, and the first coating die head and the second coating die head are arranged at intervals in the opposite arrangement direction. The first coating die head and the second coating die head are arranged in parallel, so that materials move and pass between the first coating die head and the second coating die head, and the center line of a coating outlet of the first coating die head and the center line of a coating outlet of the second coating die head are located on the same virtual plane. According to the double-sided coating device disclosed by the utility model, the first coating die head and the second coating die head can be used for coating two end surfaces at the same position of a material at the same time, and the impact force of the first coating die head to the material coating and the impact force of the second coating die head to the material coating are counteracted; and the two end faces of the material are consistent in thickness and humidity when being coated, so that a better coating effect can be obtained, and meanwhile, the double-sided coating device has a smaller occupied space.

The invention relates to the field of machine tool structures, and discloses a high-precision complex profile five-axis linkage machining device which comprises an X-axis guide rail, a Z-axis guide rail and a Y-axis guide rail, the X-axis guide rail is horizontally connected to the upper end of a machine tool body, and a C axis and an A axis can slide along the X-axis guide rail; the Z-axis guide rail is located on the side, away from the X-axis guide rail, of the lathe bed, and a main shaft is connected to the Z-axis guide rail in a sliding mode. The included angle between the Z-axis guide rail and the Y-axis guide rail is 90 degrees, and a set included angle is formed between the virtual plane where the Y-axis guide rail is located and the virtual plane where the X-axis guide rail is located, so that the Y-axis guide rail and the X-axis guide rail are not coplanar. The device has the beneficial effects that when a workpiece is machined, the gravity of a moving shaft of a moving part of the machine tool is shared to the Y axis and the Z axis, machine tool deformation and vibration caused by single-axis overload are prevented, the stability of the machining machine tool is ensured, and then the machining quality of the workpiece is ensured.

The invention provides a form page construction management method and system based on AI large model dialogue generation, and relates to the technical field of man-machine interaction, the method comprises the following steps: step 1, performing intention analysis on user intention description through a pre-trained neural network model, identifying a user intention type, extracting form field elements, and establishing a form page; the form field elements comprise field names, data types and verification rules; 2, constructing a form layout virtual plane based on the form field elements, and establishing a basic layout framework on the form layout virtual plane; arranging layout coordinate points in the basic layout framework; dividing the basic layout framework into a plurality of field distribution areas according to the data characteristics of the form field elements; by intelligently analyzing the user intention, optimizing the form layout, matching the components and automatically processing the business process, form page construction and automatic execution of the business process based on dialogue interaction are realized, and the form construction efficiency and the business processing normalization are improved.

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.

Disclosed is a method and a Head Mounted Display (HMD) for static distortion correction. The method involves collecting distortion data from an optical arrangement of the HMD, associated with a plurality of gaze directions defined by relative position of the user's pupil or head to a display screen of the HMD. The distortion data includes display pixel coordinates for display pixels and their corresponding image plane coordinates. A distortion map for each gaze direction is generated, including virtual plane coordinates of the corresponding display pixels derived from the distortion data, which are combined to form a single multi-view distortion map (400), calculated by a weighted average of the virtual plane coordinates across the gaze directions. The multi-view distortion map is applied to display content, ensuring distortion correction across entire field of view of the display screen of the HMD.

The embodiments of the disclosure provide a method for providing a virtual plane, a host, and a computer readable storage medium The method includes: tracking a hand gesture of a hand and determining whether the hand has performed a target gesture; in response to determining that the hand has performed the target gesture, providing the virtual plane at a reference height in a virtual world of a reality service; and displaying a height adjustment element in the virtual world, wherein the height adjustment element is used for adjusting a height of the virtual plane in the virtual world.

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.

At least part of the three-dimensional trajectory of the turn portion is formed on the basis of a cross-sectional trajectory curve in an X-Z cross section of the motion guide apparatus, and a longitudinal trajectory curve drawn on a virtual plane VP where a longitudinal direction of the motion guide apparatus is a Y-axis, and a trajectory length ω from a turn start point A of the cross-sectional trajectory curve is a length ω of a W-axis. X and Z coordinates of the threedimensional trajectory are X and Z coordinates of the crosssectional trajectory curve. A Y-coordinate of the threedimensional trajectory is a Y-coordinate of the longitudinal trajectory curve where the ω of the W-axis of the virtual plane VP is a variable.

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 display apparatus with a reduced defect during a manufacturing process includes a cover window including a base portion, an edge portion protruding from a virtual plane on which the base portion is located at an edge of the base portion, and an adhesive layer coupling the base portion to the edge portion, and a display panel disposed under the base portion. The base portion includes a main portion and a protrusion protruding towards the edge portion from the main portion, and the edge portion includes a lateral wall portion and a binding portion protruding towards the base portion from the lateral wall portion.

This metal porous body, which has a skeleton having a three-dimensional network structure, is in the form of a sheet including a first main surface and a second main surface on the reverse side from the first main surface. The metal porous body comprises a first metal porous body layer which includes the first main surface. The first metal porous body layer includes a first region sandwiched between a virtual plane S11 at a distance of 0.01 mm from the first main surface towards the first metal porous body layer and a virtual plane S12 at a distance of 0.10 mm from the first main surface towards the first metal porous body layer. The opening ratio A1 of the first region is 40% or less, with the opening ratio being measured by using a scanning electron microscope to observe a cross section along a line normal to the first main surface of the metal porous body. The transmitted-light area ratio of the first main surface is 2% or less, with the transmitted-light area ratio being measured by using a microscope to observe the first main surface in a state in which the metal porous body is irradiated with light from the second main surface side.

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 invention discloses a coordinate positioning deflection method, device and equipment of a multi-axis parallel motor and a storage medium, and relates to the field of motor control. Constructing a virtual plane coordinate system at an initial position based on an electric actuator controlled by three parallel motors; the central points of the electric actuators are positioned on the same circumference; receiving a task instruction of the control platform deck, analyzing a distribution task of each electric actuator and carrying out position positioning; when the allocation task is translation operation, calculating the horizontal feed amount of each electric actuator according to the plane-coordinate system and the current position coordinate; when the distribution task is the deflection operation, the deflection feeding amount of each electric actuator is determined according to the plane coordinate system and the current position; and the servo driving system is controlled to feed the deviation rectifying carrying table, and the current position coordinates are updated. According to the scheme, rotary motion is converted into linear feed amount calculation, the control time sequence coordination problem among multiple modules is avoided, and the technical bottlenecks that a traditional structure is large in size, slow in response and low in precision are successfully solved.

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.

To provide a cutting device which inhibits deflection of an elongated body during cutting and stably cuts the elongated body.SOLUTION: A cutting device 1 includes a first sandwiching part 10, a second sandwiching part 20, a blade part 30, a first pressing part 41, and a second pressing part 42. The first pressing part 41 is located at the second surface 92 side between a first sandwiching position P1 and a second sandwiching position P2 when viewed from an elongated body 9 located along a virtual plane S. The second pressing part 42 is located spaced apart from the first pressing part 41 in a longitudinal direction L and located at the second surface 92 side between the first sandwiching position P1 and the second sandwiching position P2 when viewed from the elongated body 9 located along the virtual plane S. The blade part 30 gets into a space between the first pressing part 41 and the second pressing part 42 while contacting with the first surface 91 side of the elongated body 9 and the first pressing part 41 and the second pressing part 42 press the elongated body 9 from the second surface 92 side to allow the blade part 30 to press and cut the elongated body 9.SELECTED DRAWING: Figure 1

The invention relates to a hydrogen sensor, a hydrogen detection system comprising the hydrogen sensor, a method for measuring hydrogen concentration and an aircraft. The hydrogen sensor comprises an optical fiber core part, an optical fiber cladding surrounding the optical fiber core part and a hydrogen-sensitive coating surrounding the optical fiber cladding, and the hydrogen-sensitive coating is configured to be capable of absorbing hydrogen to expand. The optical fiber core part comprises a first half part and a second half part which are divided by a virtual plane extending in the axial direction of the optical fiber core part, and a first Bragg grating and a second Bragg grating with different grating periods are etched in the first half part and the second half part respectively. According to the hydrogen sensor disclosed by the invention, the grating strain variable quantity and the temperature variable quantity at the same spatial position can be simultaneously measured, so that the hydrogen concentration is measured based on the strain variable quantity, the interference of the temperature variable quantity on detection is eliminated, and the sensitivity and the reliability of the hydrogen sensor are improved.

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 magnetic sensor includes a substrate having a reference plane, a support member having an inclined surface, and a magnetoresistive element disposed on the inclined surface. The magnetoresistive element has a bottom surface, a top surface, and a first side surface and a second side surface connecting the bottom surface and the top surface. The first side surface is, as compared to the second side surface, located in front in a first direction that is along the inclined surface and that gets close to the reference plane. At least a part of the first side surface is, as compared to a first virtual plane, located close to the second side surface, and the first virtual plane intersects with a first corner present at a position at where the top surface and the first side surface intersect and is perpendicular to the reference plane.

The present invention suppresses the narrowing of a fiber bundle width by means of a simple configuration when a moving fiber bundle is twisted. A fiber bundle feeding device (17) is provided with a plurality of guide rollers (60). Each guide roller (60) has a contact surface (60a). The plurality of guide rollers (60) include a guide roller (61) (most upstream guide) having a contact surface (61a), a guide roller (65) (most downstream guide) having a contact surface (65a), and guide rollers (62 to 64) (intermediate guides) respectively having contact surfaces (62a to 64a). When the plurality of guide rollers (60) are projected on a virtual plane VP, the contact surfaces (62a to 64a) (projected contact surfaces P62a to P64a) projected on the virtual plane VP are disposed at positions separated from a first center point PU and a second center point PD on the virtual plane VP.

A silicon carbide semiconductor device according to the present invention comprises a silicon carbide substrate. The silicon carbide substrate has a drift region that has a first conductivity type, a body region that is above the drift region and has a second conductivity type, a source region that is above the body region and has the first conductivity type, a connection region that is below the body region and has the second conductivity type, and an electric field relaxation region that is below the connection region and has the second conductivity type. A gate trench passes through the source region and the body region to the drift region. The drift region has a first semiconductor region that is between a first virtual plane that includes an upper end surface of the electric field relaxation region and a second virtual plane that includes a lower end surface of the body region. When d is the thickness of the first semiconductor region, N is the concentration of impurities that have the first conductivity type in the first semiconductor region, ε1 is the relative permittivity of the silicon carbide substrate, Vd is the diffusion potential of the silicon carbide substrate, ε0 is the permittivity of vacuum, and q is the elementary charge, d≤2×(2×ε1×ε0×Vd / (q×N))^0.5.

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 magnetic sensor comprises a substrate with a reference plane, a support element with an inclined surface, and a magnetoresistive element positioned on the inclined surface. The magnetoresistive element has a bottom surface, a top surface, a first side surface, and a second side surface connecting the bottom and top surfaces. The first side surface is positioned forward of the second side surface in a first direction that runs along the inclined surface and approaches the reference plane. At least a portion of the first side surface is positioned near the second side surface relative to a first virtual plane, and the first virtual plane intersects with a first corner located at the point where the top surface and the first side surface intersect and which is perpendicular to the reference plane.