51results about How to "Increase overlap area" patented technology

The invention relates to a three-dimensional panoramic image generation method. The method comprises the following steps of: shooting a plurality of local images of a panorama at a low angle and a high angle at a horizontal position opposite to a tripod head by using a wide-angle camera respectively; synthesizing a plane composite image from each shot local image; converting the plane composite image into a three-dimensional spherical image; and performing three-dimensional navigation on the three-dimensional spherical image. By the method, the overlap region of the local images can be increased, so that the image effect is smoother and the obtained three-dimensional panoramic image is more similar to a real scene when the local images are synthesized into the plane composite image. The invention also provides a three-dimensional panoramic image generation system.

The invention discloses an ensemble kalman filter-based particle filtering method, which comprises the following steps of: the initialization of sampled particles, the prediction of a background ensemble at a k moment, the calculation of a kalman gain, the fusion of the latest observation information, the updating of the background ensemble, the recalculation and analysis of the ensemble, the construction of a suggested Gaussian distribution function, the normalization of weights, and the like. The ensemble kalman filter-based particle filtering method provided by the invention avoids the calculation of a Jacobian matrix because a nonlinear system is not required to be linearized, and improves the calculation accuracy by adopting a sampling method to realize approximately linear distribution. In the particle filtering method, a sampling point number is heuristic and can be flexibly set, so the amount of calculation is not increased sharply with the increasing of dimensionality, and the real-time performance is effectively controlled.

A method of manufacturing a flash memory is provided. First, a substrate with a first gate structure and a second gate structure thereon is provided. The first gate structure and the second gate structure each comprises of a dielectric layer, a first conductive layer and a cap layer. A tunneling oxide layer is formed over the substrate and then a first spacer is formed on the sidewall of the first conductive layer. Thereafter, a second conductive layer is formed on one side designated for forming a source region of the sidewalls of the first gate structure and the second gate structure. Then, the source region is formed in the substrate in the designated area. Next, an inter-gate dielectric layer is formed over the second conductive layer and then an insulating layer is formed over the source region. After forming a third conductive layer over the area between the first gate structure and the second gate structure, a drain region is formed in the substrate.

The invention discloses an unmanned aerial vehicle trajectory generation method based on a flight corridor and a Bezier curve, and belongs to the field of robot motion planning. According to the trajectory generation method, a robot can meet the motion constraint of continuous acceleration on the premise that obstacle avoidance is guaranteed, and the average speed is high. The method comprises thefollowing specific steps: obtaining surrounding map point cloud information through a depth camera sensor / laser radar sensor or global known information; constructing a rasterized obstacle map; planning a collision-free and optimal path by using an A* algorithm; generating a collision-free flight corridor capable of moving by a robot based on the A* planned path; and finally, generating a Beziercurve in the flight corridor for the robot to move. A series of nodes on a safety path are converted into a series of convex geometries (corridor blocks) in a mode of generating a safety corridor, sothat the information amount is greatly increased, and the modeling accuracy is ensured.

A grid formation method comprises the following steps: forming a polysilicon layer on a substrate; executing first etching operation on the polysilicon layer and executing second etching operation on the polysilicon layer by etching gases containing bromine-based gases to form the grid; if the flow of the pumped bromine-based gases is a0 when the grid perpendicular to the substrate is obtained, the flow a when the bromine-based gases are pumped is more than a0. A grid is formed on the substrate and comprises the polysilicon layer; wherein, the polysilicon layer comprises a top wall, a bottom wall opposite to the top wall and a side wall jointed with the top wall after extending upwards from the edge of the bottom wall; the included angle of at least partial side wall and the bottom wall is less than 90 degrees. Under the condition of keeping the electrical length of a channel unchanged, the overlapped region of the grid and a drain is expanded and the hot carrier effect is improved.

The invention provides a compensation light source system and a dynamic image detecting device for a train operation fault. The compensation light source system comprises a laser generator (50) provided with an optical fiber (51) provided with an optical output end, and a beam shaping component. The beam shaping component comprises a cylindrical planoconvex lens (80) and a cylindrical planoconcave lens (90). The cylindrical planoconvex lens (80) and the optical output end of the optical fiber (51) are arranged oppositely, the cylindrical planoconcave lens (90) and the cylindrical planoconvex lens (80) are arranged sequentially along the transmission direction of laser beams transmitted by the optical output end of the optical fiber (51), and a bus of the cylindrical planoconcave lens (90) and a bus of the planoconvex lens (80) are perpendicular to each other. The compensation light source system and the dynamic image detecting device for the train operation fault have increased light utilization rate and allow light spots finally formed to meet the shooting requirements of a camera.

A two-dimensional comb-drive actuator and manufacturing method thereof are described. The two-dimensional comb-drive actuator includes a supporting base, a frame and a movable body. The supporting base has first comb electrodes and the frame has internal comb electrodes and external comb electrodes. The external comb electrodes of the frame are interdigitated to the first comb electrodes of the supporting base. The movable body has second comb electrodes which are interdigitated to the internal comb electrodes of the frame. The thicknesses of the second comb electrodes of the movable body are unequal to the internal comb electrodes of the frame and the external comb electrodes of the frame are unequal to the first comb electrodes of the supporting base. The two-dimensional comb-drive actuator utilizes a conducting layer for the above-mentioned comb electrodes in order to increase the rotation angle and operation frequency thereof.

The present invention describes a self mode locking laser and a method for self mode locking a laser. The laser (1) comprises a resonator terminated by first (3) and second (4) mirrors and folded by a third mirror (5). The third mirror comprises a single distributed Bragg reflector (17) upon which is mounted a multilayer semiconductor gain medium (18) and which includes at least one quantum well layer and an optical Kerr lensing layer (22). Self mode locking may be achieved by configuring the laser resonator such that the lensing effect of the Kerr lensing layer acts to reduce an astigmatism deliberately introduced to the cavity mode. The self mode locking of the laser may be further enhanced by selecting the length of the resonator such that a round trip time of a cavity mode is matched with an upper-state lifetime of one or more semiconductor carriers located within the gain medium.

The invention discloses a thin-film lithium niobate electrooptical modulator and a preparation method thereof. The modulator comprises a substrate, a buried oxide layer, a polymer layer and an optical waveguide layer which are sequentially arranged from bottom to top, a metal signal electrode and a metal grounding electrode are arranged on the optical waveguide layer or in the polymer layer below the optical waveguide layer, and a 1 * 2 beam splitter, a Mach-Zehnder modulator and a 2 * 1 beam combiner are arranged on the upper bottom surface of the optical waveguide layer. The 1 * 2 beam splitter and the 2 * 1 beam combiner are located on the two sides of the Mach-Zehnder modulator, and the two output ends of the 1 * 2 beam splitter are connected with the two input ends of the 2 * 1 beam combiner through the Mach-Zehnder modulator. According to the invention, microwave loss caused by the substrate in the technological process is avoided, the technological difficulty is reduced, the modulation efficiency is improved, and the electro-optical modulator with ultra-large bandwidth, low loss, compactness and ultra-high performance is realized.

An arm made of composite material, and relative production method, consisting of a plurality of articulated segments with a longitudinal main axis (x), pivoted to each other, each of the articulated segments comprising a box-like structure and at least a joint element attached thereto by means of gluing, the box-like structure having an end cooperating with an end of the joint element on the inside of the surface of the joint element. The ends define a substantially conical reciprocally overlapping area and have profiles concordantly inclined by an angle (α) with respect to the longitudinal axis (x).

The invention discloses a panoramic depth camera system capable of acquiring a 360-degree scene structure. The system is characterized in that eight fisheye lens cameras are placed in the range of a circle, objects in the periphery 360-degree space can be acquired at a time, and the base length is appropriately selected according to the scene range. By adopting the technical scheme, the system achieves the advantages that being different from an active detective type depth camera, the scheme still can normally work outdoors; according to a late algorithm, the camera can provide the 360-degreethree-dimensional scene structure and can be applied to the fields of seamless panoramic photo composition, three-dimensional measurement, three-dimensional modeling and the like; due to multiple projection constraint, the noise resisting capacity of visual three-dimensional reconstruction can be improved, and the system robustness can be improved; and the three-dimensional objects of the 360-degree space can be shot simultaneously without multiple times of scanning and composition, and therefore the shooting efficiency of the system is improved.

The invention provides a deburring device for effectively deburring cutting portions machined by a sheet-metal working machine and burs produced in punching machining (pores, window-shaped holes). The deburring device comprises a conveyor for conveying workpieces (W), first and second deburring heads (11, 12) arranged in parallel along a conveying direction (X) above the conveyor (1). Each deburring head comprises a plurality of horizontal main shafts (21), deburring members (22) provided on each of the main shafts (21). The plurality of horizontal main shafts can be freely rotatably arranged about vertical rotation centers (01, 02) and extends in radiation shape. The deburring member rotation areas (R1, R2) formed by the first and the second deburring heads comprises an overlapping area (R12) of the both. The first and the second deburring heads do not interference with each other and synchronously rotate along directions reversed to each other.

A touch screen, a manufacturing method thereof and a display device are disclosed. In the touch screen, a plurality of first sensing units are connected to each other by a first connection line in a first direction; and a plurality of second sensing units are connected to each other by a second connection line in a second direction; the first sensing units and the second sensing units are arranged alternatively in the first and second direction; and in the first direction, at least part of the second sensing units is overlapped with the first connection line between two first sensing units adjacent to this second sensing unit, and in the second direction, at least part of the first sensing units is overlapped with the second connection line between two second sensing units adjacent to this first sensing unit. The overlapping area between the first sensing unit and the respective connection line and the overlapping area between the second sensing unit and the respective connection line is increased, improving the electrostatic capacitance in the overlapping position, and in turn improving the ability of anti-static electricity of the touch screen.

A flexible display device may include a flexible display panel including a display area disposed a plurality of pixels, a signal line area disposed a plurality of signal lines for transmitting drivingsignals to the plurality of pixels, and a panel pad area disposed a plurality of panel pads for receiving an external driving signal, and a flexible film configured to transmit the driving signals inputted from an external to the flexible display panel and including a film pad area in which a plurality of film pads arranged so as to correspond to the plurality of panel pad, wherein the pluralityof film pads has a first thickness configured to increase a contact surface with the flexible display panel.

The invention belongs to the technical field of temperature detection, and particularly relates to a temperature sensing comfort level measuring device, an intelligent household system and a control method thereof. The invention aims to solve the problems that the detection range of existing temperature sensing detection equipment is limited, and the detection data are not accurate enough. According to the temperature sensing comfort level measuring device, the position of the measuring object can be detected, a remote temperature measuring module can always align the measuring object all thetime through the mode of moving the remote temperature measuring module, the measuring range of the remote temperature measuring module is increased, the overlapping area between the measuring range of the remote temperature measuring module and the body surface of the measuring object is enlarged, and the accuracy of data measured every time is guaranteed. The invention further provides an intelligent household system comprising the temperature sensing comfort level measuring device and a control method thereof, so that the operation scheme of the air conditioner is reasonably regulated and controlled by combining the temperature sensing comfort level data with extremely high accuracy; and the automatic running of the air conditioner is realized, the regulation and control operation process of the user is simplified, and meanwhile, the temperature and comfort degree experience of the user can be improved.

The present invention relates to a pole piece structure of stator with radial winding, which employs an optimum ratio α to define the form of the pole piece, increase the overlap region of inductance and torque and lower the cogging torque of a motor, so as to strengthen the self-starting capability of the motor and minimize torque ripple to enhance the overall performance of the motor. The pole piece structure includes a hub having a hole at the center, and a plurality of poles integrally formed on the periphery of the hub, extended to radiate in a radial direction, and having a pole shoe expanded from an end of each pole in a tangential direction, wherein the angle of a single pole shoe is divided by a pitch angle of two adjacent poles to obtain a ratio in a range of 0.86˜0.95.

The invention discloses a light-emitting diode epitaxial wafer and a manufacturing method thereof, and belongs to the technical field of semiconductors. An active layer of the light-emitting diode epitaxial wafer comprises a plurality of well layers and barrier layers which are periodically and alternatively grown, wherein each well layer is a superlattice structure comprising a first sub-layer and a second sub-layer, the first sub-layer and the second sub-layer both are InGaN layers, the In concentration in the first sub-layer is larger than the In concentration in the second sub-layer, and In of each well layer is gradually doped to GaN lattices. Compared with the prior art which the In of the InGaN well layers is doped into the GaN lattices in one time, the impact of the In doping to anenergy band can be reduced, so that the distortion degree of the energy band is reduced, the overlap region of an electron wave function and a hole wave function is expanded, the electron and hole radiation combination light-emitting efficiency is improved, and the light-emitting efficiency of a light-emitting diode is further improved.

The invention relates to a valve insert (1) for a heater valve (2). The valve insert is used for controlling the flow rate of a heating medium and / or regulating the flow rate of the heating medium; the valve insert has a presetting device (9) by means of which the flow rate can be throttled to a predetermined value, and is positioned in the heater valve through an inflow and outflow openings (14, 22) in such a way that the flow rate supplied to a heater (3) is allocated to at least two heating elements in any ratio, and / or optionally, the flow rate is directed into one or the other heating element of the heating elements; a device for setting the flow direction of the flow rate is integrated in the valve insert, the device can be externally accessible and actuated, and the device can directly change the flow direction of the flow rate from the valve insert.

A superconducting synchronous motor having a simple and stable structure is provided. The superconducting synchronous motor according to one embodiment of the present invention comprises: a rotary shaft; a rotation core mounted at the rotary shaft so as to be rotated by connecting with the rotary shaft; and hooked magnetic poles extending from one end of the rotation core in a longitudinal direction. Each of the hooked magnetic poles is composed of first and second inductors of a magnetic material alternately engaged with each other and a superconducting wire to be wound, and comprises a first superconducting field winding and a second superconducting field winding fixed closely at the other end of a first inductor rotation core and the to other end of a second inductor rotation core, respectively. Each of the first superconducting field winding and the second superconducting field winding excites the first inductor and the second inductor to different poles.

The invention provides an image matching method, an image matching device and unmanned equipment. The image matching method comprises the following steps: acquiring a first image acquired by unmanned equipment at a first shooting position on a first track; acquiring a second image collected by the unmanned device at a second shooting position on the second track, and the second shooting position is determined by the first shooting position and absolute position information of the unmanned device; selecting one of the first image and the second image as a to-be-matched image and the other as a matched image; and performing feature matching on the first feature point on the first matching area of the to-be-matched image and the second feature point on the matching image, and the first matching area is a first overlapping area, which is overlapped with the matching image, on the to-be-matched image. According to the method of the invention, the feature points needing to be matched in the to-be-matched image in the feature matching process can be reduced, and meanwhile, the feature matching speed and accuracy are improved.

The embodiment of the invention provides a micro-ring modulator, which comprises: a substrate layer; a slab waveguide layer positioned on the substrate layer; a coupling waveguide and a micro-ring resonance structure arranged in the slab waveguide layer in parallel, wherein the micro-ring resonance structure comprises a first doping structure and a second doping structure which are sequentially arranged in a stacked mode in the thickness direction of the substrate layer, and the doping type of the first doping structure is opposite to that of the second doping structure; and an electrode electrically connected with the micro-ring resonance structure.

Provided is a wireless base station capable of increasing an area of overlap between a cell of the wireless base station and a cell of an adjacent wireless base station before the wireless base station narrows a cell range or reduces transmission power. A wireless base station (1-1) includes a communication unit (1A) and a control unit (1B) that transmits, to a wireless base station (1-2) adjacent to the wireless base station (1-1), through the communication unit (1A), an instruction signal that gives an instruction to expand a cell range of the wireless base station (1-2) in a direction of the wireless base station (1-1) before the wireless base station (1-1) narrows a cell range or reduces transmission power.

The micro-disk modulator provided by the embodiment of the invention comprises a substrate layer; the slab waveguide layer is positioned on the substrate layer; the coupling waveguide and the micro-disc resonance structure are arranged in the slab waveguide layer in parallel, the micro-disc resonance structure comprises a first doping structure and a second doping structure which are sequentially arranged in a stacked mode in the thickness direction of the substrate layer, and the doping type of the first doping structure is opposite to that of the second doping structure; the projection of the second doping structure on a preset plane is circular, and the preset plane is perpendicular to the thickness direction of the substrate layer; and an electrode electrically connected with the micro-disk resonant structure.

The invention discloses a lithium niobate film electro-optical modulator which comprises a substrate wafer (1), a lithium niobate film substrate (2), a lithium niobate optical waveguide (3), a lithium niobate film lining (4), a traveling wave electrode (5), a protective layer (6) and an extraction electrode (7). By improving the structure of a traveling wave electrode in electro-optic modulator in general design, a part of the metal electrode (5) covers an etching area, and a part of the metal electrode (5) covers the lithium niobate film lining (4), so that the effective refractive index of microwaves is increased under the condition that the distance between the electrodes is the same, the wave velocity matching is realized, and the bandwidth of the electro-optical modulator is improved. The invention further provides a preparation method of the lithium niobate film electro-optical modulator; the lithium niobate film is directly etched to obtain the required waveguide structure based on the traveling wave electrode structure in the lithium niobate film electro-optical modulator, the etching area is reduced, and the process difficulty and cost are reduced.