112results about How to "Reduce the difficulty of matching" patented technology

The invention relates to a rapid generation method for facial animation, belonging to the image processing technical field. The method comprises the following steps: firstly detecting coordinates of a plurality of feature points matched with a grid model face in the original face pictures by virtue of an improved active shape model algorithm; completing fast matching between a grid model and a facial photo according to information of the feature points; performing refinement treatment on the mouth area of the matched grid model; and describing a basic facial mouth shape and expression change via facial animation parameters and driving the grid model by a parameter flow, and deforming the refined grid model by a grid deformation method based on a thin plate spline interpolation so as to generate animation. The method can quickly realize replacement of animated characters to generate vivid and natural facial animation.

The invention discloses a rotary disc type automatic stacking and loading and unloading device which comprises a main control unit, a material-carrying rotary disc and an automatic moving and carryingassembly; the material-carrying rotary disc is connected with rotary disc rotating driving units; to-be-machined product placement racks and machined product placement racks are arranged on the material-carrying rotary disc; adjustable placement bottom plates are arranged in machined product placement cavities; the automatic moving and carrying assembly comprises a loading manipulator, an unloading manipulator, a moving and carrying base frame, a horizontal guide rail, a moving and carrying horizontal driving unit and a moving and carrying lifting driving unit; the loading manipulator and theunloading manipulator are assembled on the moving and carrying base frame so as to shift along with the moving and carrying base frame; the main control unit is connected with the rotary disc rotating driving unit, the moving and carrying horizontal driving unit and the moving and carrying lifting driving unit correspondingly; and the main control unit is connected with a counting unit. Hence, automatic loading and unloading are realized, the manpower is saved, the rotary disc type automatic stacking and loading and unloading device runs stably and reliably, the counting is accurate and manual errors are avoided.

The invention relates to a design technology of a horizontal polarization omnidirectional antenna with an adjustable lobe elevation angle, which solves the problems of the traditional horizontal polarization omnidirectional antenna, such as fixed pitch face wave beam directing, low antenna gain and high impedance matching difficulty. The antenna comprises a top-end reflection plate, a micro-strip antenna, a bottom-end reflection plate and supporting medium columns, wherein the micro-strip antenna consists of four arc-shaped micro-strip dipoles which are arranged along the circumstance; metal plates on the top end and the bottom end are arranged on the upper side and the lower side of the micro-strip antenna; the sizes of the upper metal plate and the lower metal plate can change the directing of the pitch face wave beam; the micro-strip antenna is clamped between flanges of the medium columns on two sides and is fixed by bolts; and a hole is punched at the middle part of the lower metal plate and a feed cable can pass through the hole. The standing wave of the antenna is less than 1.5 within 10% of relative frequency band, gain in an azimuth plane is higher than 2.3dB, gain fluctuation is less than 1dB, a cross polarization level is lower than -30dB, and wave beam directing is adjustable. According to the design technology, the antenna gain, the impedance matching, the cross polarization performance and the anti-interference performance of the top end and the bottom end of the antenna are improved. The design technology is suitable for the fields, such as broadcasting communication and electronic countermeasure.

An image conversion-based heterogeneous image block matching method provided by the invention has the following steps: acquiring training samples and test samples, constructing an image conversion network, training the image conversion network, constructing a feature extraction and matching network, training the feature extraction and matching network, predicting a matching result. The invention overcomes the problem that the feature difference of the heterogeneous image extraction is large and inaccurate in the prior art, effectively reduces the matching difficulty, and improves the accuracyand robustness of the heterogeneous image block matching.

The invention relates to a method for preparing a material of a micro-spiral nickel-carbon alloy, which is characterized in that a micro-spiral carbon fiber is processed by coarsening, sensitizing and activating, and a layer of low-phosphonium-nickel layer with continuity, evenness and moderate thickness is deposited on the micro-spiral carbon fiber through a chemical treatment so as to form the material of the micro-spiral nickel-carbon alloy. The method is characterized in that the process of coarsening allows a surface of the micro-spiral carbon fiber to be bonded with a functional group; the processes of sensitizing and activating allow the surface of the micro-spiral carbon fiber to be attached with a Pd atom having a catalysis function; controls of a reaction rate and reaction time guarantee that the content of nickel phase phosphonium is extremely low with even appearance, continuity and moderate thickness. The obtained material has a spiral type microcosmic shape. The nickel-carbon alloy material has not only a micro-spiral chiral structure, but also a good magnetic property. The alloy can be applied in the fields of preparing stealth coatings and composite materials.

The invention discloses a built-in frequency modulation (FM) antenna realization method and a mobile phone using the same. The mobile phone comprises a mobile phone shell and a mobile phone main board in the mobile phone shell, wherein the mobile phone main board is provided with an FM chip and an antenna matching circuit; the mobile phone shell is provided with an annular first antenna body and an annular second antenna body; and the first antenna body is arranged on the periphery of the second antenna and is connected with the antenna matching circuit through a transmission line. Due to the adoption of an inductive coupling feed structure, the second antenna body feeds and excites the first antenna body on the periphery of the second antenna body to radiate energy; because of the interaction of the two annular antennas, the input impedance of an electric small ring approaches the characteristic impedance of a feeder, the matching difficulty of an FM antenna and a feeder is lowered, the structure of the built-in FM antenna is simplified, and the impedance bandwidth of the antennae is increased; and under the same environmental conditions, the performance of the FM antennae is improved, and the needs for the FM transmission function are satisfied.

The invention discloses a conformal covering method for treating tumors in a thermal ablation mode. The conformal covering method includes the first step of enabling STL files of the tumors to be read in, and solving parameters of tumor models, the second step of enabling thermal field model files to be read in from a thermal field model database, and solving parameters of three-dimensional thermal field models, wherein each thermal field model is formed by combining two rotating semi-ellipsoids, short axes of the two rotating semi-ellipsoids are equal and long axes of the two rotating semi-ellipsoids are coincident, and the third step of carrying out matching on the thermal field models to determine the optimized thermal field model. According to the conformal covering method, the tumor models and the thermal field models are constant in the matching process, and it is not required that points of two models are in one-to-one correspondence, so matching difficulty is greatly reduced. It is only required that external contours of the two models are matched, amount of information internally processed is greatly reduced, the processing speed is increased, and good real-time performance is achieved. A segmental matching algorithm is adopted, the optimized tumor model in the database can be determined according to matching conditions, and matching accuracy can be optimized and improved.

The invention discloses an image feature point matching method, which comprises the steps of determining a homography matrix between a target image and an original image through a one-to-one correspondence relationship between auxiliary point projection coordinates which can be distinguished from each other in the target image and auxiliary point coordinates in the original image; and according tothe homography matrix and the coordinates of the feature points in the original image, determining a one-to-one correspondence matching relationship between the projections of the feature points in the original image and the projections of the feature points in the target image. An original image adopted by the image feature point matching method comprises feature points used for matching and a plurality of auxiliary points capable of being distinguished from one another. According to the image feature point matching method, the rough corresponding relation between the original image and thetarget image is obtained, and high-precision matching of the feature points in the original image and the target image is determined based on the rough corresponding relation, and operation is easy and feasible while too complex operation is not needed, and development and application of the visual technology are facilitated. The invention further provides an image feature point matching apparatusand device and a computer readable storage medium, which have the above beneficial effects.

The invention designs an instrument management system, a management platform, an industrial instrument and a method. The system is based on a big data technology. A matching means based on a state parameter table is designed; the state parameter table runs through the acquisition, uploading, calling and analysis processes of the state parameter data; therefore, the system can conveniently manage alarge number of instruments respectively; a technical basis is provided for big datamation of instrument management; meanwhile, the state of the instrument can be judged and even predicted more accurately. The invention further provides data processing methods of different angles and different dimensions, so that the instrument state represented by the state parameter data can be judged as accurately as possible on the basis of big data analysis, dependence on an expert system is avoided, and automation and intelligence of instrument management are facilitated.

The invention relates to a gear shifting control strategy for an automatic transmission, in particular to an RN and DN gear shifting control strategy for the automatic transmission. The RN and DN gear shifting control strategy aims at solving the problems that in the prior art, RN and DN gear shifting for the automobile transmission is not controlled according to the rotating speed of a turbine, or a control strategy is imperfect, and therefore obvious shake impact occurs to some vehicle types with soft power assembly suspensions. The RN and DN gear shifting control strategy is specially characterized in that at room temperature, a main pressure regulating electromagnetic valve is controlled to increase the pressure of a main oil path, and the oil pressure of the main oil path is increased to 1.5 to 2 times of an initial oil pressure within 50 ms; and staged oil drainage control is conducted on a clutch electromagnetic valve according to the rotating speed of the turbine. The garage moving gear shifting comfort can be greatly improved, and the gear shifting quality score can be increased to more than 7.5 from 6.5 ordinarily.

The invention relates to the technical field of communication, and discloses an impedance matching circuit of an antenna and a terminal. In the invention, the impedance matching circuit of the antenna comprises an antenna matching network and an inductive coupler, wherein the antenna matching network and the inductive coupler are serially connected between a radio-frequency circuit and the antenna; the impedance of the antenna is R+jX, R is a resistance value, X is a reactive component, and j is an imaginary part unit; the impedance of the antenna matching network is _jX, the resistance value of the antenna matching network is zero, and the reactive component is equal to X; and the sum of the resistance value of the inductive coupler and the resistance value of the antenna is equal to the resistance value of the radio-frequency circuit. The embodiment of the invention further provides the terminal. Compared with the prior art, the embodiment of the invention can reduce the matching difficulty of the antenna and the radio-frequency circuit, the promotion of antenna performance is facilitated, and the implementation is simple.

The invention discloses a rigid body motion capture method and device and an AGV pose capture system. The rigid body motion capture method includes the steps: acquiring two-dimensional position information of the optical mark imaged in each image; predicting according to the pose information of the known rigid body at the previous moment to obtain predicted three-dimensional position information of an optical mark on the known rigid body at the current moment; converting the predicted three-dimensional position information of the optical mark on the known rigid body into predicted two-dimensional position information; matching the predicted two-dimensional position information of the optical mark on the known rigid body with the imaged two-dimensional position information, and determiningthe imaged two-dimensional position information of the optical mark on the known rigid body in each image; converting the two-dimensional position information of the optical mark on the known rigid body imaged in each image into three-dimensional position information; and determining the pose information of the known rigid body at the current moment according to the pre-stored position relationship between the optical marks on the known rigid body and the three-dimensional position information. According to the invention, the problem of low working efficiency of the motion capture system is solved.

The invention relates to the field of hydraulic oil cylinders, in particular to an unloading valve, a combination valve comprising the unloading valve and a combination valve type buffer oil cylinder.The unloading valve comprises a valve body, a valve element and a return spring. The valve element is further provided with a damping hole and an unloading groove. The combination valve comprises theunloading valve and a throttling valve. The throttling valve comprises a buffer plug and a buffer cavity. A piston rod assembly of the combination valve type buffer oil cylinder is installed in a cylinder body. The cylinder body comprises a cylinder head flange, a cylinder bottom and a cylinder barrel. The piston rod assembly comprises a guide sleeve, a piston and a piston rod. The combination valve is arranged on the guide sleeve and/or the cylinder bottom. According to the unloading valve, the combination valve comprising the unloading valve and the combination valve type buffer oil cylinder disclosed by the technical scheme, the unloading function of an oil inlet cavity is added, the buffer effect is outstanding, and the buffer pressure is reduced; and meanwhile, a system is in an unloading state in a buffer stage, energy losses and the heating of the system are reduced, pressure impact caused by buffer on the system is avoided, the reliability of the system is improved, and the difficulty of performance matching and installing and debugging of an original buffer valve is lowered.

The invention provides a magnetic steel sheet and a processing method thereof, a rotor, a motor, and an electric vehicle. The contour of the cross section of the magnetic steel sheet comprises a first contour line and a second contour line which are connected end to end. The first contour line comprises a first edge, a second edge and a third edge which are connected in sequence, wherein the first edge, the second edge and the second contour line are on the same side of the second edge, an obtuse angle is formed between the connection line of the two endpoints of the first edge and the connection line of the two endpoints of the second edge, and an obtuse angle is formed between the connection line of the two endpoints of the third edge and the connection line of the two endpoints of the second edge. According to the magnetic steel sheet provided by the invention, by changing the shape of the magnetic steel sheet, the contact area between adjacent magnetic steel sheets in a motor is reduced, the inter-electrode leakage flux of motors is reduced, and the utilization rate of the magnetic steel sheet is improved. The air gap flux density of motors is improved, the torque ripple and noise of motors are reduced, and users feel more comfortable in use. Moreover, the cost of the magnetic steel sheet is reduced, and rare earth resources are saved.

The invention discloses a pier top block of a precast beam constructed by a stub matching method. The pier top block comprises a top plate, two base beams and three web plates, wherein preformed holes for secondary casting are formed in the top plate; the bottom beams are symmetrically arranged on two sides of an axle wire of the pier top block in the direction of a horizontal bridge; the three web plates are used for connecting the top plate and the two bottom beams; the outer side boundaries, in the direction of the horizontal bridge, of the bottom beams, and the outer side boundaries, in the direction of a vertical bridge, of the web plates, are in the same plane; separation plates are arranged among the bottom beams, the web plates and the top plate in the direction of the horizontal bridge; the side boundaries of the preformed holes in the direction of the horizontal bridge are aligned with the inner side boundaries of the separation plates in the direction of the vertical bridge, and the side boundaries of the preformed holes in the direction of the vertical bridge are aligned with the inner side boundaries of the web plates in the direction of the vertical bridge. The pier top block disclosed by the invention has the characteristics of being convenient to precast, good in construction operability, safe, reliable and good in application prospect.

The invention provides a motor controller and control method thereof. The motor controller comprises a control module, a drive module, a measurement module and a motor controller PCB, wherein: the measurement module measures the operating parameters of the motor, the temperature of the motor controller PCB, and the basic temperature and operating parameters of the driving module, and provides theoperating parameters of the motor, the temperature of the motor controller PCB, and the basic temperature and operating parameters of the driving module to the control module. The control module calculates the surface temperature and the node temperature of the driving module according to the operating parameters of the motor, the temperature of the motor controller PCB, and the basic temperatureand operating parameters of the driving module. The control module controls the closing and opening of the driving module according to the surface temperature and the node temperature of the driving module. The motor controller and control method thereof realize that the software dynamically adjusts the motor current threshold to realize the protection of the system, and flexible.

The invention relates to a graphical combination construction method and device for a multi-agent simulation system, a computer device and a storage medium. The method comprises the following steps of in response to an intelligent agent model primitive adding operation, constructing a to-be-combined intelligent agent model set, obtaining a global published order interaction table, traversing the to-be-combined intelligent agent model set, carrying out published order relation matching on the to-be-combined intelligent agent models, and loading the to-be-combined intelligent agent models into the initial multi-intelligent-agent simulation application framework to construct the multi-intelligent-agent simulation system. On one hand, a user carries out adding operation through an agent model primitive; by adopting a visual mode, the operation process of the user is simplified; and on the other hand, the published information and the ordering information of the agent models are used for matching the agent models, and the model matching difficulty is reduced; the published ordering relation between the agent models is matched by adopting a global published ordering interaction table, so that the automatic combination of all the agent models is realized, and the construction process of the simulation system is simplified.

The invention provides a method, device and system for mapping publishing house information according to ISBN prefixes, and aims at solving low efficiency and human resource waste caused by artificially filling and proofreading publishing house information, and ensuring the correctness of the publishing house information. The method comprises the following steps of: storing a corresponding relationship between one or multiple ISBN prefixes and publishing house information; loading the ISBN prefixes into a tree structure to construct a search tree; obtaining an externally input book number andoriginal publishing house information, and matching the book number with the search tree so as to obtain a book number prefix of the book number; and querying publishing house information from the corresponding relationship according to the book number prefix, and updating the original publishing house information by utilizing the queried publishing house information.

The invention discloses a fuel pump system integrated with an engine body. The structure is that an engine body recessed cavity of a fuel pump is arranged on the engine body, and a casing recessed cavity identical with the engine body recessed cavity in shape is arranged on a fuel pump casing. A driving shaft and a driven shaft are respectively arranged on boss shaft sleeves in the recessed cavities, and a driving gear and a driven gear are respectively embedded in the driving shaft and the driven shaft. The driving shaft with the driving gear penetrates through the boss shaft sleeve of the fuel pump casing to be connected with a fuel pump gear outside the fuel pump casing. The fuel pump casing and the engine body recessed cavities are fastened and sealed through bolts and rubber rings to form a complete fuel pump working cavity. A large portion of the fuel pump working pump occupies space in the engine body to enable structure outside the fuel pump to be very small. When identical pressure and flow in a main oil channel are achieved, overall dimension of the engine is remarkably reduced. Therefore, the matching difficulty of the engine and a whole vehicle can be reduced, and large maintenance space is retained for the whole vehicle. The structure can be widely applied to any engine due to the fact that the system is simple and compact in structure.

The invention discloses a paver automatic leveling control device and method, and a paver. The device includes an automatic leveling unit for detection of road surface roughness and outputting a PWM signal with pulse width corresponding to a leveling deviation signal, a main controller for performing matching processing and operation processing of the PWM signal and signals outputted by other systems, and transmitting the processed signals to a leveling electromagnetic valve, and the leveling electromagnetic valve for responding to the processed signals so as to control a leveling oil cylinder to work to realize automatic leveling, wherein the automatic leveling unit is electrically connected with the leveling electromagnetic valve through the main controller. The difficulty of matching of a paver automatic leveling system with other systems can be greatly reduced, the response time of the leveling electromagnetic valve is shortened, the stability of paving work is improved, and the flatness of a paving road surface is ensured.