73 results about "Motion synthesis" patented technology

A method for synthesizing a sequence includes defining a switching linear dynamic system (SLDS) with a plurality of dynamic systems. In a Viterbi-based method, a state transition record for a training sequence is determined. The corresponding sequence of switching states is determined by backtracking through the state transition record. Parameters of dynamic models are learned in response to the determined sequence of switching states, and a new data sequence is synthesized, based on the dynamic models whose parameters have been learned. In a variational-based method, the switching state at a particular instance is determined by a switching model. The dynamic models are decoupled from the switching model, and parameters of the decoupled dynamic model are determined responsive to a switching state probability estimate. Similar methods are used to interpolate from an input sequence.

The invention discloses an all deflection propeller vector boost mechanism and an underwater navigation vehicle provided with the same and belongs to the technical field of underwater navigation vehicles. The all deflection propeller vector boost mechanism comprises a support, wherein a disk serving as a static platform is arranged above the support, and a cardan joint serving as a dynamic platform is arranged below the support; a propeller and a boost motor are arranged on the dynamic platform and connected to form a tail thruster; a deflecting mechanism and a slewing mechanism are arranged between the dynamic platform and the static platform. Through motion synthesis of two relatively or completely independent motion chains, namely the deflecting mechanism and the slewing mechanism, the tail thruster can rotate in all directions at any deflecting angle. The all deflection propeller vector boost mechanism has the advantages of being convenient to install and control, good in low-speed steering performance and the like.

The invention discloses a parallel type vectored propulsion mechanism and an underwater robot provided with the same and belongs to the field of underwater navigation vehicles. The parallel type vectored propulsion mechanism comprises a static platform and a dynamic platform, three motion branch chains are arranged between the dynamic platform and the static platform, the first one is an RUHR motion branch chain, the second one is an RUHU motion branch chain, and the RUHR motion branch chain, the RUHU motion branch chain, the dynamic platform and the static platform jointly form a spherical two-freedom-degree parallel mechanism; an RUC middle motion and transfer branch chain is further arranged between the dynamic platform and the static platform and used for transferring torque and motion of a main propulsion motor to a propeller. According to the parallel type vectored propulsion mechanism and the underwater robot provided with the same, through deflection of the propeller and motion synthesis of the middle motion and transfer branch chain, change of multiple types of postures of the propeller can be achieved, and transfer of motion of the propeller can be further achieved. The parallel type vectored propulsion mechanism and the underwater robot provided with the same have the advantages that the parallel type vectored propulsion mechanism is convenient to install, convenient to control and good in low-speed steering performance, and the branch chains are simple in layout,.

The invention relates to earthquake motion synthesis method and system. The method comprises the steps of: determining a multi-damping target acceleration response spectrum and a target peak displacement; obtaining an initial earthquake motion time history; regulating the initial time history through superimposing narrowband time histories to obtain a target earthquake motion time history; and if the target earthquake motion time history meets the set precision requirement, determining the target earthquake motion time history as a final earthquake motion time history to be obtained, or else, returning the former step. The method and the system can be used for synthesizing an artificial earthquake motion time history which can simultaneously meet the earthquake motion peak displacement and the multi-damping earthquake motion acceleration response spectrum, and can ensure the engineering characteristic that the input artificial earthquake motion of nuclear engineering quake-proof design more completely simulates natural earthquake motion, thereby ensuring that nuclear engineering can safely resist the earthquake possibly occurring in the future.

The invention discloses a propeller vector propelling device which comprises a propeller rotary motion transmission mechanism, a propeller deflection mechanism and an inner sealed cabin overall rotary mechanism. The propeller rotary motion transmission mechanism is composed of is UPS motion branch chain composed of a U kinematic pair, a P kinematic pair and an S kinematic pair and transmits rotation motion of a propelling motor installed in a sealed cabin to a propeller. The propeller deflection mechanism is composed of a sliding pair composed of a ball screw and an I-shaped guide rail, the mechanism is installed in the inner sealed cabin, and through motion of the lead screw, the propeller deflects around the center axis of the inner sealed cabin. The inner sealed cabin overall rotary mechanism is mainly composed of a pair of inner meshing gear pairs and the inner sealed cabin is driven by rotation of inner meshing gears to rotate within 360 degrees relative to an outer sealed cabin. Through motion synthesis of two independent transmission chains of propeller deflection and inner sealed cabin overall rotation, the propelling device can rotate in all directions at a certain deflection angle. The propeller vector propelling device has the advantages of being convenient to install and control, good in low-speed steering performance and the like.

This method includes steps of: (1) obtaining movement data specimen; (2) statistically analyzing the obtained reduction specimen movement data series (MDS) on the basis of functions to obtain the character movement; (3) depending on the user's control or application requirement to combine a new MDS; (4) after-processing the combined MDS. This method possesses a good currency, suits the application in games and the virtual realism roam to generate or control the interacting behavior of virtual roles. It also suits to form fast and vividly numerous virtual roles in moving picture edition and movie/ video production.

The invention relates to an automatic foam cutter. The automatic foam cutter comprises a control host, a horizontal screw and a vertical screw, wherein a first vertical ball sliding block and a second vertical ball sliding block are arranged on the vertical screw respectively; an electric heating wire is connected between the first vertical ball sliding block and the second vertical ball sliding block. According to the existing cutting information such as a CAD file, the foam cutter controls servo motors, so that the screws rotate at special rotation speed and rotation direction to drive the ball sliding blocks to move, and the electric heating wire is driven to carry out three-dimensional cutting on the foam according to the motion synthesis of the ball sliding blocks. The foam cutter is high in cutting efficiency, high in safety, high in processing accuracy and high in automation degree.

The invention provides a dance movement synthesis method, device and equipment and a storage medium, and relates to the technical field of games. The method comprises the following steps: acquiring audio characteristics of input music; a preset music action translation model is adopted to determine an action characteristic curve corresponding to the audio characteristics of the input music, the music action translation model is obtained according to dance video training, and the dance video comprises dance music and dance actions; acquiring an action sequence matched with the action characteristic curve according to the action characteristic curve; and generating dance animation according to the action sequence. Compared with the prior art, the problems that the matching range of music dance is small, and the music dance cannot better adapt to various music styles and dance types are solved.

The invention discloses a dancing motion automatic synthesis method, comprising the steps of: S1, identifying speed and beat characteristics in music; and S2, selecting motion fragments according with music characteristics from a motion library, performing transformation treatment, and connecting to form continuous dancing motions. The method identifies music characteristics, selects motion segments according to music characteristics, performs transformation treatment on the motion segments, and synthesizes dancing motions which accord with music speeds and styles; the dancing motions are coherent and not repeated, and have great ornamental values. The dancing motion automatic synthesis method meets intelligent tool automatic dancing motion synthesis demands in a simple way.

The invention relates to a real-time motion synthesis method based on fast inverse kinematics. The method comprises the following steps of: firstly performing analysis on the current motion driving a virtual character, performing segmentation by taking the step length as unit and simultaneously extracting key joint points so as to identify the intent of an operator, which is reflected by motion data; then adjusting data of the key joint points by utilizing a fast inverse kinematics algorithm according to striding information, namely change information of a virtual environment, which is set by a user, and simultaneously performing analysis and adjustment on the balance state of the virtual character according to the related theory of human body balance control in biomechanics; and finally using a data smoothing method based on a geometric method for data smoothing, and enabling the motion of the virtual character to be sufficient to complete the interaction with the virtual environment. According to the real-time motion synthesis method, an algorithm is finally configured onto a PC (personal computer) and a PDA (personal digital assistant) in the server-client mode, thereby interaction control over the motion of the virtual character by a terminal user on mobile equipment is realized.

The invention discloses a control device of a parallel sporty game motion platform and a control method of the control device of the parallel sporty game motion platform. The control device of the parallel sporty game motion platform comprises a center control unit, an A/D conversion unit, a communication unit, a difference and mapping unit, a kinematics inverse solution unit, a PID control unit, a liquid crystal display screen, a dedicated control handle and the like. Control modes of the parallel sporty game motion platform include a manual control mode and an upper computer motion track planning software control mode. The control device of the parallel sporty game motion platform receives posture parameters and kinematics parameters from the dedicated control handle or upper computer motion track planning software with a certain frequency, carries out position inverse solution calculation and speed inverse solution calculation on the posture parameters and the kinematics parameters to obtain operating parameters such as lengths and speeds of driving legs, and sends the obtained operating parameters into the PID control unit, the PID control unit has control over the position and the speed of each driving leg, and effective control over the posture state and the motion state of the parallel sporty game motion platform is achieved through motion synthesis of the parallel sporty game motion platform.

A dual-redundancy steering gear control system based on CAN bus adopts a differential epicyclic gear train motion synthesis method, which effectively solves the problem of force disputes caused by unbalanced loads. The reliability of the steering gear control system is improved. The electrical parts of the two redundancy channels are identical, and they can independently complete the control tasks, achieving complete electrical redundancy. If any component in one of the channels fails, the steering gear system can still operate normally. The CAN communication method with high reliability and real-time performance is adopted, which makes the switching between the two redundancy levels fast and accurate. The dual redundancy control system has precise control and reliable redundancy.

Disclosed is a method for automatically extracting personal styles from captured motion data. The inventive method employs wavelet analysis to extract the captured motion vector of different actors into wavelet coefficients, and thus forms a feature vector by optimization selection, which is used later for identification purposes. When the inventive method is applied to process animation frames, the performance can be evaluated by grouping and classification matrix without any correlation with the type of the motion. Also, even if the type of the motion is not stored in the database in advance, the motions of the actor can still be recognized by a learning module regardless of the type of the motions.

The present invention discloses a method for synthesizing three-dimensional human body movement based on non-linearity manifold study, so as to make three-dimensional human body movement animations, characterized in that firstly a set of sparse three-dimensional human body movement samples is mapped in movement semantic parameter space builded on a low-dimentsion manifold; then implementing uniformly distributed coarctation resample to the low dimensional movement semantic parameter space, and applying resample coefficient set to movement samples distributed in an original movement space sparsely to obtain dense and well distributed movement samples of a high dimensional space; then remapping the newly sampled high dimensional movement samples to obtain a final low dimensional movement semantic parameter space; finally, by means of interacting the movement semantic parameters synthezed selectively in the low dimensional semantic parameter space by users, the system maps the movement semantic parameter to a high dimensional movement space to obtain a new movement sequence. The invention is not only capable of controlling precisively movement physical parameters, e.g. movement position, physical movement characteristics of special arthrosis, and also used to synthesize novel movement data having high-rise movement semantion such as movement styles.

A motion synthesis method includes: analyzing a character's gait in motion capture data; creating motion capture data at different speeds having the analyzed gait; and storing the motion capture data at different speeds in a motion capture database. The method further includes: designating restrictions of a sketch including a trajectory and a speed tag of a desired motion; searching and extracting motion capture data corresponding to the speed tag from the motion capture database; and creating a motion satisfying the trajectory through synthesis by blending the motion capture data extracted from the motion capture database.

A tool for running-in machining of a ball body and a valve seat of a ball valve comprises a tool body. The tool body comprises a base, a support and a numerical control operation panel, wherein the base is provided with a ball body main shaft system; the support is provided with a ball body top loading device, an abradant conveying system and a guide rail mounting mechanism; the guide rail mounting mechanism is provided with a left grinding head main shaft system and a right grinding head main shaft system in a bilateral symmetry mode with the center line of the base as the center; the support is provided with a cross beam swing mechanism hinged to the guide rail mounting mechanism. The tool has the beneficial effects that the valve seat swings in a reciprocating mode around the center of the ball body through a crank and rocker mechanism, the reciprocating swinging motions are combined with respective rotations of the ball body and the valve seat to form a motion trail, the running-in precision of the ball body and the valve seat is higher through the three-motion synthesis mode, and the machining efficiency is higher.

The invention provides a multi-inlet double-outlet type combined differential speed reducer which comprises a case, a bevel gear transmission mechanism and a worm and gear planetary transmission mechanism. The bevel gear transmission mechanism and the worm and gear planetary transmission mechanism are sequentially mounted in an inner cavity of the case. The bevel gear transmission mechanism is composed of a longitudinal shaft, an input cross shaft, a middle transmission shaft and three bevel gears. The bevel gear transmission mechanism is connected with the worm and gear planetary transmission mechanism through the middle transmission shaft. The worm and gear planetary transmission mechanism is formed by integrating a WW-type duplex planet wheel and a worm and gear mechanism. The outer ring face of a planet plate worm wheel is a toothed face engaged with a worm, and a worm and gear transmission mechanism is formed by the toothed face and the worm. The multi-inlet double-outlet type combined differential speed reducer is formed by combining the WW-type duplex planet wheel, the bevel gears and the worm and gear mechanism, different kinds of power transfer can be obtained in two input modes, worm and gear input is driven by a motor, two freedom degrees are formed by the whole equipment, a differential mechanism is formed, power can be output in four directions at the same time, meanwhile, motion synthesis is achieved, and main movement feeding can be corrected.

The invention discloses an ultrasonic medicine liquid permeation promoting device for the gastrointestinal tract based on a piezoelectric drive and a working method of the ultrasonic medicine liquid permeation promoting device, relating to the fields of ultrasound and piezoelectric technology. According to the embodiment provided by the invention, an elastic cantilever beam generates pre-compression force acting on a bolt, by utilizing a base body structure and through motion synthesis generated by vibration of two groups of piezoelectric ceramic plates, anticlockwise elliptical orbit movement is generated at the tail end of the elastic cantilever beam; the tail end of the elastic cantilever beam contacts the surface of the bolt, through friction force, the linear motion of the bolt is realized, meanwhile, pushing force is output, and locating can be carried out on the lesion tissue in the gastrointestinal tract; ultrasonic waves generated by a machine body of a sheet chip-mounted energy converter is utilized for promoting the permeation of medicine liquid, and thus the effect of promoting the permeation of the medicine liquid in the gastrointestinal tract is realized. With the adoption of the embodiment provided by the invention, the side effects generated by unnecessary medicines in the traditional treatment methods are greatly reduced, the lesion tissue is rapidly treated, and finally, the purposes of examination convenience, no trauma, no leads, no pain, no cross infection, dosage reduction and high cure rate are achieved.

The invention discloses a restorer for the lose data of laser sonar and a method thereof, wherein a laser data collector collects the change information of water particle vibration speed caused by underwater targets; a data discriminator for discriminating the signals of the change information into a signal batch and a losing signal batch; a phase evaluation module obtains the phase change of the digital signals according to the time-space correlation between the motion speed of the sonar platform and the signal batch data, and utilizes motion synthesis aperture theory to reconstruct the data batch of losing signals; a data collector synthesizes the signal batch and the reconstructed data batch to restore the losing data. The restore can resolve the problem only owned by laser sonar such as batched data losing caused by the fluctuation of waves and the limit of laser receiving aperture, thereby avoiding the decrease of detection performance of sonar. The method is simple and practical, and can be real-timely realized without much additional computing resource.

The invention provides a double-swing type wave energy generation unit structure. The double-swing type wave energy generation unit structure comprises a box-type wave energy extraction device, a mechanical transmission device, an energy storage device and an energy conversion device. The box-type wave energy extraction device converts kinetic energy of waves into kinetic energy of reciprocating rotation of a swing plate rotary shaft through swing plates to be transmitted. The mechanical transmission device converts reciprocating rotation of the swing plate rotary shaft into one-direction rotation and the motion synthesis problem caused by non-synchronous movement speeds of the two swing plates is solved at the same time. The energy storage device plays an energy storage role and is used for stabilizing the rotation speed and reducing the wave impact influence. A generation device converts mechanical energy into final electric energy. Resource waste caused when each swing box of a traditional box-type swing wave energy generation device is provided with an electric generator is solved, energy of two swing boxes is synthesized for unified electricity generation, wave force of all waves on the swing plates can be absorbed, and the conversion efficiency is greatly improved.

The invention relates to a front speed regulating type wind generating set which is composed of an impeller, a gearbox, a driving gear, a driven gear, a bevel gearbox, a speed regulating device, a synchronous generator and other components. The front speed regulating type wind generating set is characterized in that a motion synthesis principle is used for regulating speed, a space bevel gear mechanism serves as a motion synthesis device, the rotating speed of the speed regulating device and the rotating speed of a geared-up wind wheel are subjected to motion synthesis through the bevel gearbox, and the rotating speed of the synchronous generator is kept near a synchronous speed. The wind generating set has the beneficial effects of being high in transmission efficiency, sensitive in speed regulation, high in wind energy utilization rate and constant in speed and frequency, and belongs to friendly wind generating sets with development prospects.

The invention relates to DNA (deoxyribonucleic acid) synthesis equipment and particularly discloses high-throughput micro full-automatic DNA synthesis equipment. The high-throughput micro full-automatic DNA synthesis equipment comprises a gas-liquid control mechanism, a piezoelectric spray nozzle spray-printing mechanism, an electrical control assembly, a platform lifting mechanism, a motion synthesis platform, a high-throughput micro sampling liquid-exchanging mechanism. The high-throughput micro full-automatic DNA synthesis equipment uses a small amount of chemical reagent for synthesizing an oligonucleotide chain, uses short time, is flexible and varied, simple in finishing and high in synthesis throughput, and secondly, also provides a synthesis platform for production of a detection probe, a gene chip and a primer library.

The invention discloses a motion synthesis method based on spherical nonlinear interpolation, and relates to the field of computers. The method comprises the following specific steps: preparing data training and standardizing joint coordinates; extracting a motion law of the motion sequence, learning a motion law dictionary and a motion frame dictionary according to standardized motion data, solving sparse representation coefficients of the head frame and the tail frame on the motion frame dictionary by using an orthogonal matching pursuit algorithm, reconstructing the motion law on the motionlaw dictionary, and synthesizing a complete motion sequence; the method has the advantages that in the field of film and television industry, the method can be used for synthesizing 3D human motion to drive virtual characters; in the field of robots, some special actions can be synthesized to drive a humanoid robot; in the field of medical rehabilitation, the method can be used for synthesizing normal movement postures of patients with dyskinesia so as to assist psychological treatment.

The invention discloses a motion synthesis array-based multi-source DOA estimation method. The motion synthesis array-based multi-source DOA estimation method comprises the following steps of (1) acquiring L segments of data by a motion array according to a period T, wherein each segment of data comprises N snapshots; (2) performing characteristic decomposition on covariance matrix of two adjacentsegments of data to obtain a noise sub-space, building a two-dimension spectral function, and obtaining a group of phase correction factors and an initial DOA estimation value by two-dimension searching or dimension-reduction searching; (3) continuously performing the step (2) on the L segments of data to obtain (L-1) groups of phase correction factors; and (4) performing characteristic decomposition on covariance matrix of total L segments of data to obtain a total noise sub-space, compensating an array flow pattern according to the phase correction factors obtained in the step (3), constructing a spectral function for synthesizing the array, and searching the spectral function to obtain the DOA estimation value. The motion synthesis array-based multi-source DOA estimation method is applicable for array non-uniform motion and source incoherent conditions, the hole for synthesizing the array can be greatly expanded, and the DOA estimation performance also can be greatly improved.

The invention discloses a rhythmic head motion synthesis method based on motion deviation mapping. The method comprises the following steps of: inputting the natural text to be processed into a sign language markup language system, wherein the sign language markup language system analyzes to generate the content information, rhythm mark and rhythm structure of the processed natural text; setting a parameter and a corresponding value, reading the gesture data of the word corresponding to the content information of the natural text from the database in the sign language markup language system, normalizing the dynamic time of the degree of freedom of the head joint, reading the parameter value, and processing the gesture data of the word corresponding to the content information of the processed natural text by a motion deviation mapping method to obtain the motion information after amplitude change; and obtaining the sign language animation demonstration information of the natural text by matching the motion information after amplitude change with the rhythm structure of the processed natural text. Through the invention, the sense of reality of the sign language animation can be enhanced, and the intelligibility of the sign language animation can be improved.