494 results about "Virtual plane" patented technology

A laser processing apparatus irradiates a target with a laser light to form a modified region along a virtual plane in the target. The laser processing apparatus includes a support portion, an irradiation portion, a movement mechanism, and a controller. The controller performs a first processing process of irradiating a first portion in the target with the laser light under a first processing condition, and a second processing process of irradiating a second portion more on an inner side than the first portion in the target with the laser light under a second processing condition different from the first processing condition, after the first processing process.

This optical connector comprises: a plurality of optical fibers; a ferrule having a plurality of fiber holes through which the plurality of optical fibers are inserted, two positioning holes, and a connection end surface in which the plurality of fiber holes and the two positioning holes are opened; and a housing for holding the ferrule. The connection end surface is inclined with respect to a virtual plane perpendicular to a longitudinal direction of the plurality of fiber holes when viewed from a juxtaposing direction in which the two positioning holes are arranged. The housing has a housing-side contact surface, and the ferrule has a ferrule-side contact surface that limits the amount of protrusion of the ferrule from the housing by coming into contact with the housing-side contact surface. In a state in which the housing-side contact surface and the ferrule-side contact surface are in contact with each other, the ferrule is swingable about a swing center axis with respect to the housing. The swing center axis is located at a position at which the housing-side contact surface and the ferrule-side contact surface are in contact with each other, and extends in an orthogonal direction that is orthogonal to both the longitudinal direction and the juxtaposing direction.

The invention discloses a vehicle-mounted unmanned aerial vehicle visual servo precise landing control method considering view field constraints, and the method comprises the following steps: employing virtual plane feature points to form an image moment feature value, and building a decoupling system dynamics model integrating unmanned aerial vehicle dynamics and image dynamics; according to the image shot by the camera at the current moment and the motion state of the unmanned aerial vehicle, acquiring the system state at the current moment; outer ring control and inner ring control are set based on a model prediction control method, an optimization target is set in the outer ring control, attitude constraints are set in the inner ring control, the system state at the subsequent moment is predicted based on the system state at the current moment, and the optimal control at the current moment is obtained to serve as system input; and performing flight control on the unmanned aerial vehicle based on system input. The method disclosed by the invention ensures that the view field visibility is met in the autonomous landing process of the unmanned aerial vehicle.

A network environment comprises a plurality of host machines that are coupled to each other via a network fabric comprising a plurality of switches, that in turn include a plurality of ports. Each host machine comprises one or more GPUs. A first subset of ports from is associated with a first virtual plane, wherein the first virtual plane identifies a first collection of resources to be used for communicating packets from / to host machines associated with the first virtual plane. A second subset of ports is associated with a second virtual plane that is different from the first virtual plane. A first host machine and a second host machine are associated with the first virtual plane and the second virtual plane, respectively. A packet is communicated from the first host machine to the second host machine using ports from the first subset of ports and the second subset of ports.

In an example, a method for assembly of a modular cable connector includes, at an end effector of a robotic insertion system, holding a cable insert module for insertion into a module slot of a module retainer. Two or more images are captured of the module retainer. Image processing is performed to identify a segmented image region corresponding to the module retainer and a virtual plane parallel to a face of the module retainer. The end effector is moved to an alignment pose determined based, at least in part, on the segmented image region and the virtual plane. The end effector is moved from the alignment pose toward an insertion pose. Upon insertion of the cable insert module into the module slot of the module retainer, the cable insert module is released from the end effector.

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.

According to the small-view-field precise three-dimensional reconstruction method provided by the invention, in a global calibration process, a calibration method based on a virtual plane is provided, the virtual plane is used for calibrating a spatial position relationship between a camera and a projector, a spatial line-line intersection algorithm is used for obtaining a three-dimensional coordinate under global calibration, and global parameters of an X coordinate and a Y coordinate are obtained; in the local calibration process, a coordinate correction method based on a PCA plane fitting ideal plane is provided, the mapping relation between the phase and the coordinate of each pixel level is constructed by using cross ratio invariance, the relation between the absolute phase of an image collected by a camera and the Z coordinate is obtained, and system local calibration parameters for the Z coordinate are obtained; in the three-dimensional reconstruction process, an image positioning method based on the difference reflectivity is provided, the reconstruction range is narrowed, and only the image in the reconstruction area is calculated in subsequent calculation; and an invalid phase value identification and removal method is provided, interference of invalid points is eliminated, and the accuracy of a reconstruction result is ensured.

The invention relates to the technical field of traffic engineering, and discloses a reinforcement learning-based virtual aircraft multi-agent co-simulation and optimization method and system, and the system comprises a virtual environment construction module which is used for constructing a virtual city environment through UE4 and AirSim simulation software; the aircraft model construction module is used for designing an eVTOL virtual aircraft agent model by using 3ds Max; the agent state sensing module is used for sensing the state of the agent in real time through an AirSim plug-in; the reinforcement learning training module is used for applying a DDQN algorithm to train an agent to make an autonomous decision; and the collaborative task design module is used for multi-agent collaborative task execution, such as traffic planning, route optimization and the like. Through a virtual simulation method, an innovative perspective of cooperative operation of a large number of virtual aircraft agents in a complex urban environment is provided. The method has remarkable advancement in urban air traffic (UAM) system design and verification research, and dynamic characteristics of urban air traffic can be truly represented and analyzed in a simulation environment.

A head-up display (HUD) system includes a first light transmitter configured to transmit first light beams on a first optical path; a second light transmitter configured to transmit second light beams on a second optical path; a two-dimensional (2D) scanner arranged on the first optical path and the second optical path; a first focus lens, arranged on the first optical path between the first light transmitter and the 2D scanner, configured to focus the first light beams onto a first focal point located at a first distance downstream from the 2D scanner along the first optical path; and a second focus lens, arranged on the second optical path between the second light transmitter and the 2D scanner, configured to focus the second light beams onto a second focal point located at a second, different distance downstream from the 2D scanner along the second optical path.

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.

The utility model relates to a direction-variable puncture needle for lung tissue biopsy and a puncture sampling system, and belongs to the technical field of medical instruments. The puncture needle comprises a puncture trocar, a guide trocar and a sampling needle; a movable guide trocar is arranged in the hollow puncture trocar for percutaneous puncture in a penetrating manner; the guide trocar is provided with a bending part capable of controlling the turning direction; a movable bendable sampling needle is arranged in the hollow guide trocar in a penetrating manner; a sampling section is arranged at one end of the sampling needle away from an operator; the guide trocar is provided with a traction line for pulling the bending part of the guide trocar to change the sampling direction on a virtual plane formed by the puncture trocar and the sampling target; a mark used for marking the circumferential position of the traction line is axially arranged along the outer part of the guide trocar body; circumferential scales are arranged on the needle body circumference on the outer side of a human body along the puncture trocar. After the puncture needle is punctured into a human body, the sampling direction of the puncture needle can be changed according to the actual position of a sampling target, and the one-time puncture success rate is improved.

The utility model provides an all-terrain vehicle which comprises a vehicle frame, an engine and a main driving seat cushion, the engine and the main driving seat cushion are both installed on the vehicle frame, and a longitudinal center plane is a virtual plane which extends in the vertical direction and coincides with the left center line and the right center line of the vehicle frame. The bottom plane is a virtual plane which is located below the frame, extends in the front-back direction and is perpendicular to the longitudinal center plane, the geometric center of the outer contour line of the projection of the main driving seat cushion on the bottom plane is a point A, and the symmetric point of the point A relative to the longitudinal center plane is a point B; the all-terrain vehicle further comprises a plurality of flexible connecting pieces, the engine is flexibly connected with the vehicle frame through the flexible connecting pieces, the projection centers of the flexible connecting pieces on the bottom plane are points T, all the points T are located behind the line segment AB, and at least one point T is distributed on each of the left side and the right side of the longitudinal center plane. In this way, the adverse effect of vibration of the engine on the main driver seat cushion can be reduced, and the riding comfort of passengers is better.

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.

To improve dimensional flexibility in one direction of a cell case and inhibit deterioration of sealability of the cell case.SOLUTION: In a power storage cell 10 based on the disclosure, a cylindrical body part 210 is formed by molding a film F in a cylindrical shape. A first sealing body 510 closes a first opening 218. A second sealing body 610 closes a second opening 219. The first sealing body 510 has a first plate-like part 511 and a first extending part 512. The first plate-like part 511 extends in parallel to a virtual plane orthogonal to a first direction D1 in which the first opening 218 and the second opening 219 are arranged. The first plate-like part 511 is located adjacent to the first opening 218 in the first direction D1. The first extending part 512 extends from the first plate-like part 511 in the first direction D1. The first extending part 512 is disposed at the inner side of the cylindrical body part 210. The first extending part 512 is joined to an inner peripheral surface 210S of the cylindrical body part 210.SELECTED DRAWING: Figure 3

The invention provides an air-ground amphibious robot which comprises a main machine frame. The flight assembly is arranged above the main rack, comprises a plurality of rotor wing assemblies and is used for enabling the air-ground amphibious robot to be in a vertical flight state or a horizontal flight state; the land walking assembly is arranged below the main machine frame and comprises a pair of driving assemblies, and each driving assembly comprises a land walking device used for enabling the land-air amphibious robot to advance on the ground and a connecting rod assembly used for adjusting the position of the land walking device; the air-ground amphibious robot comprises a first mass center, the land walking device comprises second mass centers, the first mass center and the pair of second mass centers define a virtual plane, and when the air-ground amphibious robot is in a vertical flight state or a horizontal flight state, the connecting rod assembly adjusts the position of the land walking device so that the virtual plane can be roughly in a vertical state. Through the arrangement, the air-ground amphibious robot can be kept stable in different postures or in posture changes, and meanwhile energy consumption can be reduced.

A network environment comprises a plurality of host machines that are communicatively coupled to each other via a network fabric comprising a plurality of switches that in turn include a plurality of ports. Each host machine comprises one or more GPUs. A first subset of ports from is associated with a first virtual plane, wherein the first virtual plane identifies a first collection of resources to be used for communicating packets from and to host machines associated with the first virtual plane. A second subset of ports is associated with a second virtual plane that is different from the first virtual plane. A first host machine and a second host machine are associated with the first virtual plane. A packet originating at the first host machine and destined for the second host machine is communicated using only ports from the first subset of ports.

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.

A partition has an air blowing function of blowing air to a predetermined region. The partition includes a casing, a blower mechanism arranged in the casing, and a blow-out port formed in the casing. On a virtual plane facing the blow-out port and having a wind velocity of 0.2 m / s or more, an airflow with an average momentum per unit area from 0.05 kg / ms2 to 0.75 kg / ms2 is generated.

A vehicular antenna device (10) includes an antenna base (100) and a first antenna portion (a first satellite antenna (210) or a second satellite antenna (220)). The antenna base (100) has a longitudinal direction. The first antenna portion is provided over the antenna base (100). The satellite antennas are disposed offset in a direction intersecting a virtual plane parallel or substantially parallel with the longitudinal direction.

An imaging lens system includes an optical path folding member including a forwardmost reflective surface disposed closest to an object side, a rearmost reflective surface disposed closest to an imaging plane, and a rear reflective surface disposed to form an acute angle with the rearmost reflective surface and configured to reflect light reflected by the rearmost reflective surface to the imaging plane, and a first lens group disposed on an object side of the forwardmost reflective surface or an image side of the forwardmost reflective surface, wherein an angle between a first virtual plane including the forwardmost reflective surface and a second virtual plane including the rearmost reflective surface is 15 to 27 degrees.

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.

A ceramic electronic component (101) includes a multilayer object (1) having a first surface (1a), a pad electrode (5) provided on the first surface (1a), and a protective film (6) provided so as to extend over the periphery of the pad electrode (5) to the first surface (1a) and to surround the pad electrode (5). When a virtual plane serving as a reference for the first surface (1a) is referred to as a reference surface (7), then the periphery of the protective film (6) is depressed below the reference surface (7), and at least the central surface of a portion of the pad electrode (5) which is not covered with the protective film (6) is protrudent above the reference surface (7).

To provide a reel seat for fitting a reel comprising first and second legs to a rod body of a fishing rod.SOLUTION: A reel seat includes: a seat body which includes a resting part where first and second legs rest, and a fixed hood part being positioned in the resting part and receiving the inserted first leg, the seat body being coupled to the rod body along a center axis of the rod body; a movable hood which is movably coupled to the seat body so as to fix the second leg to the resting part. The fixed hood part has: an opening edge which extends from the resting part so as to form an opening into which the first leg is inserted; and an inner face extending from the opening edge and covering the first leg. The opening edge is positioned on a first virtual plane which is inclined at an acute angle to a resting surface where the resting part is formed. A first virtual line for dividing the inner face into two parts along the center axis and the first virtual plane merge at an obtuse angle.SELECTED DRAWING: Figure 4

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.