203 results about "Parallel plane" patented technology

The utility model discloses a lifting row with adjustable lifting point spacing, which relates to the technical field of lifting appliances and comprises a beam body and at least one lifting pulley block, upper lifting points are arranged at two ends of the beam body, the lifting pulley block comprises a plurality of transverse shafts which are transversely and detachably connected onto the beam body, and two ends of a third transverse shaft at the edge position are connected with two rope heads of a steel wire rope. Two fixed pulleys I in the direction of the first plane are arranged below the transverse shaft I at the other edge, fixed pulleys II are arranged at the two ends of the transverse shaft II in the middle, and the fixed pulleys II on the front side of the beam body and the fixed pulleys II on the rear side of the beam body are located on two parallel planes and are perpendicular to the first plane; the steel wire rope is sequentially connected with the second fixed pulleys and the two first fixed pulleys in series, a pulley is hung below the steel wire rope between every two adjacent second fixed pulleys in the same plane, and the distance between the pulleys can be changed by changing the position of the transverse shaft. According to the lifting row, a certain pair of lifting points can be independently adjusted, the operation is convenient and fast, and the stress of the whole group of lifting points is still balanced after the distance between the lifting points is changed.

A hinge is mountable between two support parts of a flexible electronic device for mounting a flexible display thereon. Each support part includes first, second and third support plates. The hinge includes two rotating units rotatably mounted at two sides of a base seat to be shifted among an unfolded state, a transition folded state and a fully folded state. Each rotating unit includes a primary rotating member, a secondary rotating member, first and second shaft members and a support bracket. In the transition folded state, the first, second and third support plates cooperatively define two parallel planes for resting two halves of the flexible display. During shifting to the fully folded state, the shaft members are inclined to bring the third support plates close to each other such that a distance between the third support plates is smaller than that between the first support plates.

End effectors and systems may capture, release, and / or create a mating engagement between the end effector and a target object, such as in capture and launch applications, grasping applications, or pick-and-place applications. The end effectors are tolerant of positional and rotational misalignment of the target object, and may include a plurality of roller wheels, one or more of which is arranged in a non-parallel plane with respect to one or more other roller wheels. Control devices enable operation of these and other end effectors in a portable, self-contained system that a single operator can use in a hand-held or wearable form factor. The control devices may include a drive system for power transfer, manual and automatic leveling or angular positioning mechanisms, and / or operator-mounting features. Related methods may involve capture and release, pick-and-place, and / or grasping operations performed with the disclosed control device and one or more end effectors coupled thereto.

The compact log splitter comprises a main body, a tool coupling member carried by the main body, for operative coupling to a tool handling device, and first and second jaws carried by the main body, the jaws each being movable relative to the main body along a jaw movement direction, the jaws further being movable towards and away from each other between a closed position in which they are near or adjacent to each other and an opened position in which they are spaced-apart compared to the closed position, at least one of the jaws comprising a cutting tool for splitting logs that is in facing register with the other one of the jaws. A jaw actuation mechanism is carried by the main body and operatively connected to the first and second jaws, allowing the jaws to be moved between the opened and closed positions. The compact log splitter has substantially the same width when the jaws are in the opened position and in the closed position. When the first and second jaws are in the opened position, the jaw actuation mechanism is mostly located between parallel planes that are perpendicular to the jaw movement direction and respectively located at the positions of the first and second jaws.

The invention provides a high-speed and multi-dimensional spatial light field regulation and control device, which can realize high-speed regulation of multiple dimensions such as amplitude, phase, polarization and the like of a spatial light field. Comprising a pumping regulation and control system, a collimation focusing shaping system and a laser resonance system which are sequentially installed through a three-dimensional adjusting frame along a light path, and the three systems are located on the same horizontal optical axis and are vertically arranged. The pumping regulation and control system comprises a signal generator, a driving circuit and a pumping source; the collimating focusing shaping system comprises a collimating lens, a conical lens or a cylindrical lens and a focusing lens, the laser resonance system comprises a laser crystal and a laser resonant cavity, and the laser resonant cavity comprises a compact parallel plane cavity and an open type optical resonant cavity. Laser pulses with different amplitude characteristics can be output at different moments; laser pulses with different phase characteristics can be output at different moments; and laser pulses with different polarization characteristics can be output at different moments.

The invention relates to the technical field of antennas, and discloses a high-power microwave antipodal Vivaldi antenna and a parameter determination method, so as to improve the power capacity of the antipodal Vivaldi antenna and improve the radiation gain of the antenna. In the antenna disclosed by the invention, the left comb-shaped metal oscillator and the right comb-shaped metal oscillator which are consistent in thickness are based on an all-metal structure; two middle vertical planes of the two comb-shaped metal oscillators based on a line segment where the thickness direction is located are two parallel planes which are equally spaced from the center of the metal floor, the inner contour and the outer contour of the middle vertical plane corresponding to the left comb-shaped metal oscillator respectively comprise two sections of gradual change curves, and the gradual change curve section at the bottom is connected with the metal floor through a rectangular square block; the inner and outer contours of the middle vertical plane corresponding to the right comb-shaped metal oscillator are respectively and directly connected with the metal floor through a section of gradual change curve; a cuboid empty groove which is dug and parallel to the rectangular metal floor is formed between the upper comb teeth of the left comb-shaped metal oscillator and the upper comb teeth of the right comb-shaped metal oscillator, and the cross sections, parallel to the middle vertical plane, of the comb-shaped metal oscillators are consistent in shape.

Braking device for a vehicle, with a piezoelectric sensor (2) comprising: a piezoelectric material, two electrodes (6, 7), wherein the piezoelectric material comprises a first flat face (4) and a second flat face (5), the faces extending in parallel planes identified by two orthogonal y and z directions, wherein an electrical signal is collected by the electrodes when the piezoelectric material is simultaneously subjected to a normal force in an x-direction and to a shear force in the z-direction, wherein the first electrode is positioned on the first face and the second electrode is positioned on the second face and has extensions (7a, 7b) on the first face separated by the first electrode, wherein each of said extensions extends on a corresponding side of said first face, and wherein each of said extensions is symmetrically configured with respect to a central axis of the first face.

The present application provides a plane fitting-based point cloud registration method and apparatus, and an electronic device. The method comprises: acquiring a source point cloud and a point cloud to be registered; then determining two non-parallel source planes in the source point cloud, and two non-parallel planes to be registered in the point cloud to be registered; on the basis of the two source planes and the two planes to be registered, performing calculation to obtain a rotation matrix, and obtaining a translation vector on the basis of the source point cloud and the point cloud to be registered; and finally, on the basis of the rotation matrix and the translation vector, rotating and translating the point cloud to be registered to achieve registration of the point cloud to be registered and the source point cloud. According to the present solution, registration is achieved on the basis of the correspondence between planes rather than local features of points, thereby greatly reducing the amount of calculation, and greatly reducing the sensitivity to noise.

The invention discloses a double-optical-path long-optical-path gas absorption cell which comprises a first light source, a second light source, two sets of spherical reflectors, two sets of plane reflectors, a roof prism, a triangular reflector, two sets of narrow-band optical filters and two sets of detectors. All the components are arranged perpendicular to the XZ plane, the light source is located above the first spherical reflector and arranged on the two sides of the sphere center, the concave faces of the spherical mirrors are relatively parallel, the plane mirrors are obliquely parallel, and the prism is correspondingly matched with the optical filter and the detector. The double light paths can adopt the same light source to split beams (improve the detection sensitivity) or light sources with different wavelengths (synchronously detect various gases), the light beams are anticlockwise reflected for multiple times in the cavity to form a long light path, and light spots are distributed in a semi-ellipse manner. According to the invention, the spherical mirror does not need to be punched, the processing and coating difficulty is reduced, the debugging error-tolerant rate is improved, the long optical path and miniaturization are both considered, and the method is suitable for related gas detection scenes of the TDLAS technology.

The utility model relates to an integrated laser welding cleaning device which comprises a laser output system, a collimation system, a first wedge-shaped prism and a focusing system, and the first wedge-shaped prism is arranged between the collimation system and the focusing system. The first wedge-shaped prism is provided with two non-parallel planes and used for changing the deflection angle and direction of an incident laser beam, and welding laser and cleaning laser emitted by the laser output system are collimated by the collimation system to form collimated welding laser and collimated cleaning laser. The laser beams pass through the first wedge-shaped prism from the hollow part and the non-hollow part of the first wedge-shaped prism and then enter the focusing system to form focusing welding laser and focusing cleaning laser, and the focusing cleaning laser and the focusing welding laser enter a workpiece to be welded to clean and weld the workpiece. According to the utility model, the wedge-shaped prism is arranged to adjust the focusing position of the cleaning laser beam, so that the laser cleaning and the laser welding are synchronously carried out, and the laser welding efficiency and the welding quality are improved.

To represent a 3D scene, the MPI format uses a set of fronto-parallel planes. Different from MPI, the current MIV standard accepts a 3D scene represented as sequence input pairs of texture and depth pictures as input. To enable transmission of an MPI cube via the MIV-V3C standard, in one embodiment, an MPI cube is divided into empty regions and local MPI partitions that contain 3D objects. Each partition in the MPI cube can be projected to one or more patches. For a patch, the geometry is generated as well as the texture attribute and alpha attributes, and the alpha attributes may be represented as a peak and a width of an impulse. In another embodiment, an MPI RGBA layer of the MPI is cut into sub-images. Each sub-image may correspond to a patch, and the RGB and alpha information of the sub-image are assigned to the patch.

Embodiments of the present disclosure relate to the technical field of computers, and provide a cylindrical surface detection method and apparatus. The method comprises: obtaining a plane detection result corresponding to point clouds to be detected; dividing approximately parallel planes in the plane detection result into plane groups; for each plane group, determining, from said point clouds, a point cloud set corresponding to the plane group and a projection plane corresponding to the point cloud set, wherein point cloud points in one point cloud set and an acquisition device configured to obtain said point clouds are located on the same side of the projection plane corresponding to the point cloud set, and the projection plane is a plane in the corresponding plane group; determining a target point cloud set and a target projection plane from the obtained point cloud sets and the corresponding projection planes on the basis of the projection point distribution of the point cloud sets on the corresponding projection planes; and detecting a target cylindrical surface on the basis of the target point cloud set and the target projection plane. In this way, the cylindrical surface can be detected from the point clouds, and high detection accuracy is achieved.

The present invention discloses a tower crane lifting safety detection device and method, including a calibration platform, wherein the upper end face and the lower end face of the calibration platform are two parallel planes, and the side surface of the calibration platform is evenly distributed with a number of indicator lights in the circumferential direction, and the lower end face of the calibration platform has at least three ball joint supports in an annular array, and the ball joint supports are equipped with a ball joint rod, and the outer wall of the ball joint rod is provided with a tension sensor along the axis direction of the ball joint rod, and the outer end of the ball joint rod is provided with a sling suspension mechanism, and the lower end face of the calibration platform is provided with a rotating table, and the rotating table is connected to a connecting rod, and the connecting rod is perpendicular to the upper end face of the calibration platform, and two distance measuring sensors are vertically connected to the lower part of the connecting rod in parallel, and the rotation path of the distance measuring sensor is concentric with the center of the annular array of all ball joint supports. The present invention can accurately evaluate the safety of the lifting of the object to be hoisted, avoid the occurrence of hidden dangers such as tilting of the object to be hoisted, false lifting of the sling, and uneven force on multiple slings, and improve the lifting safety of the tower crane.

The disclosure relates to a control device for an end effector, a system including the same, and a related method. End effectors and systems may capture, release, and / or create mating engagement between the end effector and a target object, such as for use in capture and firing, gripping, or pick-and-place applications. The end effector may tolerate position and rotational misalignment of the target object, and the end effector may include a plurality of rollers, one or more of which are arranged in a non-parallel plane with respect to one or more of the other rollers. A control device enables these and other end effectors to be operated in a system that can be used by a single operator in a handheld or wearable shape. The control device may include a drive system for power transmission, manual and automatic leveling or angle positioning mechanisms, and / or operator mounting features. Methods may involve performing capture and release, pick and place, and / or grip operations using the disclosed control device and one or more end effectors coupled thereto.

The application discloses an array antenna applied to three-dimensional multi-target arbitrary power distribution wireless energy transmission, and belongs to the field of wireless energy transmission. The array antenna comprises a transmitting antenna and a receiving antenna, and a plurality of transmitting antenna array units and a plurality of receiving antenna array units are arranged in the transmitting antenna and the receiving antenna respectively. In the transmitting antenna, the distribution of the plurality of transmitting antenna array units is divided into two layers, the transmitting antenna array units in each layer are arranged to form a circle, and an open three-dimensional space is formed. In the receiving antenna, the plurality of receiving antenna array units are distributed on two parallel planes, and the two planes are located at the center of the three-dimensional space formed by the transmitting antenna. The transmitting antenna array unit is a rectangular microstrip patch antenna. The array antenna can meet the application scene of three-dimensional multi-target arbitrary power distribution wireless power transmission.

A movable contact (20) is proposed for an electrical current interruption device (50), comprising: - a first conducting knife (1) and a second conducting knife (2), extending from parallel planes (P1,P2) separated by a distance between them, the conducting knives (1,2) being rotationally linked about a common axis of rotation (R), - a first and second spacer (3,4) configured to maintain a minimum distance between the first knife (1) and the second knife (2), wherein a cross-section (S1,S2) of each knife (1,2) is shaped to: - have an area equal to the area of ​​a reference rectangular cross-section (S1',S2') of the same length (a), and - have a second moment of area greater than the second moment of area of ​​the reference cross-section (S1',S2'), the second moment of area being determined with respect to an axis parallel to the transverse axis (T1,T2) of the knives (1,2). Figure of the abstract: Figure 3

The invention discloses a point cloud registration method and system based on parallel plane group features, and relates to the technical field of registration algorithms, and the technical scheme is characterized in that the method comprises the steps: obtaining preprocessed two-point cloud data; extracting a triad structure descriptor from the preprocessed two-point cloud data, and obtaining a triad structure descriptor of a source point cloud and a triad structure descriptor of a target cloud; kD tree scanning matching is constructed, the most similar triad structure descriptor in the target point cloud is inquired for each triad structure descriptor in the source point cloud, point cloud transformation is calculated, and optimal initial matching is obtained; and performing multi-objective optimization on the optimal initial matching, and screening out the optimal transformation. The registration method mainly points to high-level structure information hidden in a scene structure, and a descriptor formed by plane groups greatly reduces the information calculation amount and the registration transformation number needing to be screened.

Implementations of a semiconductor package may include two or more die, each of the two more die coupled to a metal layer at a drain of each of the two more die, the two or more die and each metal layer arranged in two parallel planes; a first interconnect layer coupled at a source of each of the two more die; a second interconnect layer coupled to a gate of each of the two or more die and to a gate package contact through one or more vias; and an encapsulant that encapsulates the two or more die and at least a portion of the first interconnect layer, each metal layer, and the second interconnect layer.

To provide an expansion drilling unit that can increase the soil pressure an expanding wing receives when a drilling rod starts the reverse rotation, and quickly opens the expanding wing to perform expansion drilling.SOLUTION: An expansion drilling unit 100 comprises a drilling shaft 10 that is connectable to a drilling rod 1 to rotate as a unified body, multiple support shafts 13 that are parallel to the shaft center axis of the drilling shaft 10 and arranged on the outer periphery of the drilling shaft 10 at equal intervals along the peripheral direction of the drilling shaft 10, and expansion wings 11 that are rotatably fitted to the support shafts 13. During a pile hole drilling work in which the drilling rod 1 makes the positive rotation, the expansion wings 11 that receive the soil pressure maintain the diameter-reduced state, while, during an expansion drilling work in which the drilling rod 1 makes the reverse rotation, the expansion wings 11 that receive the soil pressure rotate around the support shafts 13 and expand up to the state that part of the expansion wing 11 comes to contact with the outer periphery of the drilling shaft 10 to retain the diameter-increased state. The drilling shaft 10 has a shank part 12 in a shape made by trimming a cylinder, the center of which is the shaft center axis, by planes 12a, 12a that are parallel to the shaft center axis avoiding the areas where the multiple support shafts are placed.SELECTED DRAWING: Figure 2

The application discloses a kind of flat plate type parts fast identification method based on equal-thickness surface splicing, by extracting the B-rep data of part, whether there is parallel plane in current part based on B-rep data is judged, for the part of existing parallel plane, equal-thickness surface in part is spliced using depth-first search algorithm to obtain splicing surface, the area of splicing surface and the area of part original surface are calculated, the maximum face thickness corresponding to the largest area is screened;The minimum direction size of the bounding box of current part in three coordinate axis direction is calculated using AABB bounding box algorithm, the maximum face thickness is compared with direction size, if the maximum face thickness is equal to the minimum direction size, then the current part is judged as flat plate type part;The application can be applicable to large-scale part library batch efficient analysis and identification, and flat plate type parts can be efficiently and accurately identified.

The utility model discloses a microfluidic system for target object pairing, which comprises a first flow channel, a second flow channel, an oil liquid flow channel, a buffer liquid flow channel, a matching flow channel and a pairing micro valve, a first micro valve, a second micro valve and a buffer liquid micro valve are arranged, the matching flow channel is communicated to the oil liquid flow channel, and the first flow channel, the second flow channel and the buffer liquid flow channel are all communicated to the matching flow channel. The first flow channel comprises a first flow section different from the first micro-valve, the second flow channel comprises a second flow section different from the second micro-valve, and the upper side inner wall surfaces and the lower side inner wall surfaces of the first flow section and the second flow channel are parallel planes, so that the distance difference between different target objects and the upper side inner wall surfaces is reduced; therefore, the flow velocity difference caused by the distance difference is reduced, the stopping range of the target object is further reduced, the pressure of the buffer solution and the volume of the liquid can be correspondingly reduced, and the capturing success rate can be improved.

To provide an assembly for brazing heat treatment.SOLUTION: First members 3, 4, 5 comprise a core material and a brazing material made of a melting member cladded on the core material, and a second member 2 comprises a substrate made of a member to be molten, wherein the melting member contains Si in an amount of 1.5 mass% or more and 14.0 mass% or less, one of V and Ti in an amount of 0.010 mass% or more and 1.5 mass% or less, with the balance consisting of Al and inevitable impurities, the member to be molten contains the other one of V and Ti in an amount of 0.010 mass% or more and 0.5 mass% or less, with the balance consisting of Al and inevitable impurities, an RD-TD parallel surface of the melting member has less than 5 intermetallic compounds containing one of V and Ti having a diameter of 10.00 μm or more in a circle equivalent diameter in an observation visual field of 10000 μm2, and an RD-TD parallel surface or an ED-TD parallel surface of the member to be molten has 10 or more intermetallic compounds containing the other one of V and Ti having a diameter of 0.01 μm or more and less than 5.00 μm in a circle equivalent diameter in an observation visual field of 10000 μm2.SELECTED DRAWING: Figure 1

A memory sub-system includes a memory device comprising a memory array comprising a plurality of planes a processing device configured to detect a boot process of the system subsequent to an occurrence of a power loss event, and initiate a series of multi-plane read operations to identify a last written page of the memory device, wherein the last written page was programmed prior to the occurrence of the power loss event, and wherein at least a portion of the memory device remains unprogrammed.

The invention provides a binocular vision reconstruction method and system for a mobile carrier based on dynamic baseline expansion, and the method comprises the steps: installing an IMU sensor, a GPS positioning device, and two cameras which are in bilateral symmetry on the same parallel plane on the mobile carrier, and carrying out the time synchronization of the two cameras, the IMU sensor and the GPS positioning device; the binocular vision reconstruction method for the mobile carrier comprises the following steps: S1, receiving left and right video frames, IMU attitude data and GPS displacement data collected by two cameras, an IMU sensor and a GPS positioning device at the same time; s2, performing target detection on the left and right video frames to obtain position information of a target in the left and right video frames; s3, motion compensation is carried out on the IMU attitude data and the GPS displacement data, position information of the target in the left and right video frames is converted into a virtual baseline based on motion compensation, depth calculation is carried out, and the depth of the target is obtained; and S4, performing three-dimensional space reconstruction on the target based on the target depth.

Methods for fabricating light-guide optical elements (LOEs) are provided. The methods involve obtaining first and second optical structures, each with a set of mutually-parallel partially reflective surfaces. These structures are bonded together such that their reflective surfaces are non-parallel, forming a third optical structure. At least one of the first or second optical structure is cut along a specific line, prior to bonding or after bonding, and the third optical structure is sliced along parallel planes to create one or more LOEs. Each LOE features parallel major external surfaces and regions with mutually-parallel partially reflective surfaces from both original sets. The specific line can include a contoured section and / or a typically straight section. The contoured section defines a contoured profile of the LOE, and the typically straight section defines a coupling-in surface of the LOE.

The utility model discloses a combined core mould for making carbon fiber roller, which comprises a long strip-shaped supporting core, and an axle head is arranged at the front and rear ends of the supporting core respectively, the two axle heads are coaxially arranged, the upper and lower sides of the supporting core are parallel planes, an upper cover plate is arranged on the upper side of the supporting core, a lower cover plate is arranged on the lower side of the supporting core, in the radial section of the supporting core, the outer contour shape of the combination of the upper cover plate, the supporting core and the lower cover plate is the same as the radial section shape of the carbon fiber roller to be processed and wound, and the upper cover plate and the lower cover plate are respectively connected and fixed with the supporting core through positioning mechanisms. The utility model has the beneficial effect that the core can be separated from the carbon fiber roller by simple operation, and demolding is realized.

The utility model discloses a parallel surface grinding machine with a clamping structure, which belongs to the field of parallel surface grinding machines, and comprises a parallel surface grinding machine body and an arranged clamping mechanism, after a product to be processed is arranged between clamping plates which are symmetrical up and down, a driving motor is started to drive an output end to drive a driving gear to rotate, and the clamping mechanism is driven to rotate. The driving gear drives the driven gear to rotate under the meshing action, so that the driven gear drives the two-way adjusting screw rod to rotate through the rotating rod, the connecting block mounted on the rear end wall of the clamping plate moves along the two-way adjusting screw rod through the screw hole formed in the top surface, and the clamping plates which are symmetrical up and down are respectively driven by the connecting block to perform relative movement operation; and the clamping plates are clamped and fixed until the regular annular or circular product is centered, clamped and fixed between the clamping plates through the arc-shaped clamping openings formed in the opposite face walls, so that the parallel faces at the two ends of the product are ground and machined through the double-end-face grinding machine body, and the purpose of rapidly clamping and fixing the regular annular or circular products of different sizes is achieved.

A selectively configurable tube-holding apparatus for use in tube-welding system by a frame, defining a recess and a pinching surface; a selector wheel, disposed in the recess and defining first and second pairs of tube holding divots; wherein: the selector wheel is rotatably connected to the frame, each divot of the first pair is of a first gauge different from a second gauge for each divot of the second pair, the selector wheel is rotatable to first and second positions; in the first position, radial centers of the first pair are aligned to be in the parallel plane with the pinching surface the second pair are not, and in the second position, the radial centers of the second pair are aligned to be in the parallel plane with the pinching surface and the radial centers of the first pair are not.

A method of fabricating a light-guide optical element having a plurality of partially reflecting surfaces is disclosed. The method includes providing a plurality of transparent plates, each plate polished on two opposite surfaces such that the surfaces are parallel to each other, coating a first of the surfaces of a subset of plates with a first coating, coating a second of the surfaces of the subset of plates with a second coating; bonding together the plurality of transparent plates to form a stack, and cutting the stack along parallel planes obliquely angled to the faces of the transparent plates so as to form the optical element, wherein the first coating is a partially reflective coating have a first set of mechanical properties, and the second coating is selected from the group consisting of: a coating similar to the first coating and a non-reflective coating having a second set of mechanical properties substantially similar to the first set of mechanical properties.