115results about How to "Realistic simulation effect" patented technology

The present invention discloses an enhanced force tactile modeling method for human-computer interaction in virtual reality systems based on physical significance, before a virtual proxy collides with virtual soft tissue, only white noise signal related to distance of the soft tissue is feedback output. In interaction process, feedback output a signal superimposed by a white noise signal of human skin sensitive perceptive and force tactile information of soft tissue real-time deformation simulation under external force action; in proportional layered coupled force tactile molding method, supraposition of sum of each spring deflection in every layer is external equivalent to deformation of object surface, and elastic force composite force of connected springs is equivalent to contact force of object surface. Calculation of the modeling method is simple that can calculate deformation rapidly and accurately, and implements real-time deformation simulation to the soft tissue. In the interaction process, natural and comfort, force tactile feels smooth, simulation effect is true.

The invention discloses a vehicle driving simulator with heavy-load wideband response. A simulation cabin is arranged on a moving platform of a six-freedom-degree hydraulic driving moving platform and a three-freedom-degree electric-driving moving seat positioned in the simulation cabin. The vehicle driving simulator comprises a seat, a seat moving platform, and three sets of seat driving mechanisms for connecting a connecting seat moving platform and the moving platform and with the same structures; three lower hinges are respectively and uniformly arranged on the moving platform; three upper ball hinges are respectively connected with the lower hinges by an electric cylinder and a speed reducer; a motor is connected with an input shaft of the speed reducer; and the upper ball hinges areuniformly fixed under the seat moving platform simultaneously. In the vehicle driving simulator, the moving platform provides motion for the vehicle driving simulator under the heavy-load condition, the three-freedom-degree electric-driving moving seat provides high-frequency wideband motion of the seat, a driver feels the combined motion after the two motions are superimposed, the defect that the traditional vehicle driving simulator can only work under low-frequency band when in heavy-load motion is avoided and the sense of reality for vehicle driving is improved.

The invention relates to a laser ultrasonic detection system and a detection method thereof. The system is used for generating and receiving field seismic exploration seismic waves simulated by an ultrasonic method under the indoor condition. A complete set of laser ultrasonic automatic acquisition system comprises a set of intense pulse laser source, a single-point laser Doppler seismograph, a three-dimensional laser Doppler seismograph, a 24-bit analog-to-digital converter, a three-dimensional coordinatograph and the like. The system solves the problems of a large number of conventional geologic model simulation methods, can perform single-point and three-component non-contact ultrasonic detection, and meets the requirement of modern geophysical exploration on fine and multi-component simulation.

Disclosed is an implementation method to simulate a real incoming call or conversation of a mobile phone, which is characterized in that: 1, after a user touches off a corresponding hot key, or clicks a corresponding function column in a menu, or clicks a corresponding icon on a touch screen, the mobile phone automatically or passively acquires the number or / and the information of the contact person; 2, the mobile phone simulates the state of a real incoming call and conversation through a software program and hardware of the mobile phone by making use of the acquired number or / and the information of the contact person; 3, the mobile phone automatically ends the incoming call simulation state according to the setting of a timer, or the user ends the incoming call simulation or conversation simulation state, or the mobile phone ends the incoming call simulation or conversation simulation state when the mobile phone detects a real incoming communication event. Through the implementation method, the user can freely control the incoming calls to get the effect of mixing the false with the genuine; the simulation effect is vivid and natural; the method is convenient to use; the method enables the user to leave politely with a proper excuse; therefore, the method better satisfies the requirements of the people and enables the people to better control their time. The implementation method is simple and reasonable.

The invention provides a grid realization method for simulation and emulation of a plate surfacing forming process on the basis of analyzing the disadvantages of a simulation and emulation method of the traditional plate surfacing molten pool and welding line forming process; in the method, comprehensive analysis is carried out to the plate surfacing molten pool and welding line forming process, a grid method in computer graphics is applied to simulation and emulation of the molten weld pool and the welding line formation, the OpenGL technology is utilized to construct a welding bead, a molten pool and a welding line model by taking a plane triangle grid as the basis; a Gauss heat source model is combined to obtain molten pool sinking and welding line surplus height growth function, and vertex movement of the triangle grid on the welding bead plane can be controlled on the basis of the function, so as to form a sunk grid molten pool and a grid welding line and effectively represent a practical scaly shaped welding line feature after being welded; after being test by actual operation, an integration system is operated stably and the simulation effect is vivid.

The invention discloses a modeling method of a symmetrical type plate spring virtual model enhancing haptic feedback, which is characterized by comprising the following steps of: only feeding back and outputting 1 / f noise signals based on orthogonal wavelet bases before a virtual agent collides with a virtual flexible body; feeding back and outputting signals obtained by overlying the 1 / f noise signals fitting to the response law of human bodies on irritation and the haptic information of the real-time deformation simulation of the flexible body, which is calculated by adopting the symmetrical type plate spring virtual model and responded under the action of pulling force, together in an interactive process, wherein the overlying of the deformation amount sum of each layer of symmetrical type single-plate spring of the symmetrical type plate spring virtual model enhancing the haptic feedback is externally equivalent to the deformation of the surface of the flexible body, and the sum of pulling force consumed when each layer of the symmetrical type single-plate spring is stretched is equivalent to given virtual contact pulling force. The modeling method can realize the real-time deformation simulation of the flexible body, has real haptic feeling and vivid deformation effect and meets the requirements of a virtual reality system on virtual surgery simulation.

The invention provides a flexible object deformation simulation method for force haptic human-computer interaction. Based on a spring mass point model for equilateral triangle segmentation, according to the deformation of a flexible object, acting force is sequentially spread to all mass points in the structure layer by layer from the surface mass points inside a local area until reaching a certain preset boundary; overall consideration does not need to be conducted on the deformed object, and calculation resources are effectively and intensively put into the mass points in the local area. According to the flexible object deformation simulation method, only the mass points in the local area on the surface of the flexible object are involved, the deformation area is determined by contact force, the segmentation precision can be adjusted based on accuracy requirements, calculation quantity is greatly simplified, the deformation calculation speed is improved, adjustment is flexible, the application range is wide, and the flexible object deformation simulation method can be applied in the deformation situation where isotropous flexible objects are in stable contact, such as virtual surgical operation simulation and teleoperation robot control virtual reality human-computer interaction fields.

The invention discloses a haptic modeling method of an equal pitch conical spiral spring for deformation simulation of a flexible body. The haptic modeling method is characterized in that an equal pitch conical spiral spring model is only filled in a partial region where a virtual proxy is interacted with a virtual flexible body under the action of a given virtual contact force when the virtual proxy is detected to collide with any point on the surface of the virtual flexible body so as to calculate the force and the deformation of the partial region; a signal of the haptic information on the real-time deformation simulation of the flexible body obtained from the response calculated by the haptic modeling method of the equal pitch conical spiral spring under the action of an external force is output and fed back; and the superposition of the sum of the deformation of the equal pitch conical spiral springs at each layer is externally equivalent to the deformation of the surface of the flexible body in the modeling method. The modeling method of the model is simple and the deformation calculation process is simple and convenient so as to ensure high accuracy of the deformation simulation and high stability and high timeliness in the deformation simulation of the flexible body.

The invention provides a non-contact ultrasonic testing method and belongs to the field of ultrasonic vibration testing. The method is characterized in that high-voltage pulses or alternating voltage is adopted to excite high-frequency vibration of a non-contact focusing probeand further to induce sound waves to be transmitted out, sound wave radiation energy is focused, focused sound waves are emitted to a shot point of a tested geologic model, ultrasonic waves are generated on the shot point and transmitted to the interior of the tested geologic model, simultaneously a detection point of the tested geologic model is detected to obtain voltage signals, and the voltage signals are converted to digital signals and transmitted to a computer to be processed. The non-contact ultrasonic testing method solves the problem of various normal geologic model simulation methods, can perform large-scale multipoint non-contact ultrasonic detection for complex surface models and meets special requirements of modern geophysical prospecting fine simulation.

The present invention relates to one kind of solution for electronic intelligent atomized cigarette and its preparation process. The solution is prepared with 18 kinds of material, including edible propylene glycol, glycerin, longan extract, apple extract, carrot extract, etc. and through mixing, settling, filtering and packing. The solution contains no nicotine and other harmful matter, is incombustible, and can counteract cigarette toxin, clear away lung heat, moisten lung and shield electromagnetic wave. It may be used by different smokers and in different places.

The invention involves a technique for adjusting the resistance in equipments simulating bicycle's movement. First, use one speed-detecting motor to check the speed at the pedals and output speed signals. Then calculate the current simulated position. Calculate the initial resistance according to the simulated terrain at the current simulated position and the preset simulated position. Then generate the resistance control signals according to the initial resistance and the speed signals that have been detected. After this, utilize one output torque of the servo motor in accordance with the resistance-controlling signals. Then adjust the torque outputted by the servo motor, using a torque sensor. At last, the generated resistance is to be applied on the pedals. With the above technical scheme, the resistance on the pedals of an equipment which simulates bicycle's movement can be regulated according to the operating condition. In addition, more real simulation effect would be achieved by incorporating video / audio equipment, fan and other appliances.

The invention discloses a real-fire simulation training device and system for reburning of building fire, and the device comprises a real-fire training room which comprises a reburning door and a reburning window, and is controlled to adjust the quantity of air entering the real-fire training room; a water-bath combustor which is disposed in the real-fire training room, wherein an ignition mechanism is used for providing a continuous and stable ignition source, and an external fuel gas supply system is used for providing a gas source, so as to achieve the full burning; a smoke generator which is used for providing heavy smoke for simulation for the real-fire training room in a fire simulation process; and a water spraying device which is used for the spraying protection of the internal and external walls of the real-fire training room in a burning process. The device and system are realistic in fire simulation effect, save energy, are environment-friendly, are safe and reliable, are high in automation control degree, can be used for fire-fighting training, and also can be used for fire research.

The invention discloses an elastic deformation simulation method based on a linear differential operator. The invention comprises the following steps of using elastic energy based on the linear differential operator defined on the geometric attribute of a deformation gridding model to replace the traditional nonlinear energy based on continuum mechanics, carrying out modeling computation using Euler-Lagrange equation to compute the deformation process of the elastic object in the computer. Meanwhile, according to the calculation model, the invention optimizes the calculation process via further using the techniques of dimension reduction solution, airspace adaptive acceleration, etc, which allows the modeling process to reach the mutual or even real time efficiency and can simulate the elasticity of different materials and the deformation process of plastic objects. The invention reduces the calculation complexity, improves the calculation efficiency of the modeling solution, and keeps the living simulating effect via the model of transform solution based on the deformation energy form of the linear differential operator. The invention solves the rapid simulating problem in the deformation process of the elastic object in the real time or in a mutual virtual simulation system.

The invention discloses a motor-driven three degrees of freedom removable dynamic race game motion simulator. The motor-driven three degrees of freedom removable dynamic race game motion simulator is characterized by comprising a fixed base, a rolling mechanism, a side swinging mechanism and a pitching mechanism; the fixed base comprises two trapezoid connecting blocks, two U-shaped steel pipes and a display installation frame; two ends of the two U-shaped steel pipes are connected through the trapezoid connecting blocks; the display installation frame is arranged on one trapezoid connecting block. The motor-driven three degrees of freedom removable dynamic race game motion simulator has the advantages of being convenient to assemble and disassemble and convenient to convey and store; being simple in integral structure, easy to machine, adjustable in center of gravity and light in weight; being simple and practical in driving mode and green and environmental friendly due to the facts that a motor is served as a power source and a screw and a connecting rod are served as a driving mechanism; achieving movement in three rotational degrees of freedom directions of rolling, side swinging and pitching and being good in linkage effect and real in simulation effect.

Provided is an electronic candle lamp simulating true fire. The electronic candle lamp simulating true fire comprises a candle outer shell and a light emitting device installed in the candle outer shell. The light emitting device comprises at least one light emitting component, an installation base for installation of the light emitting components, and a control circuit for controlling the light emitting components to work, wherein a flame piece which can shake flexibly is vertically installed at the upper end of the installation base, the flame piece is in a flame shape, light emitted by the light emitting components is aslant projected on the flame piece from bottom to top, an exposed light image on the flame piece is in a shape of a flame which is high in brightness of the lower middle portion and gradually darkens upwards, and an atomization drive assembly which can atomize perfume and drive the flame piece to swing is installed in the candle outer shell and located below the flame piece. The image on the flame piece flickers, twinkles, swings naturally and is free of the feeling of manual drive, the simulation effect of the flame is vivid, interestingness and ornamental value are achieved, and the electronic candle lamp simulating true fire is simple in structure, more stable and reliable and easy to manufacture and assemble, has a good visual effect and can give out fragrance.

The invention discloses an interactive virtual simulation system which comprises a traffic simulation subsystem, an automatic driving simulation subsystem, a simulation driving subsystem and a fusion subsystem. The traffic simulation subsystem constructs a virtual traffic scene according to the state data of various real traffic elements; the automatic driving simulation subsystem is used for generating a test vehicle model and determining an automatic driving instruction of the test vehicle model; the simulation driving subsystem is used for generating a virtual driving vehicle model and generating a real-time driving instruction of the virtual driving vehicle model; the fusion subsystem controls the test vehicle model to drive in the virtual traffic scene according to the automatic driving instruction; or controlling the virtual driving vehicle model to drive in the virtual traffic scene according to the driving instruction. According to the invention, performance testing can be simultaneously carried out on an automatic driving vehicle and a manned vehicle based on a real traffic scene, simulation driving training can also be carried out, and the system has the characteristics of multiple functions, low cost and high efficiency.

The invention relates to a cardio-pulmonary resuscitation simulated training method and system based on virtual reality technology. The method comprises the steps of pressing a cardio-pulmonary resuscitation model, and collecting cardio-pulmonary pressing parameter information; generating resuscitation characteristic information according to the variation tendency of the cardio-pulmonary pressingparameter information; generating corresponding cardio-pulmonary image animation according to resuscitation characteristic information, and carrying out projected display to simulate cardio-pulmonaryresuscitation. According to the cardio-pulmonary resuscitation simulated training method based on virtual reality technology, the implementation effect of cardio-pulmonary resuscitation can be observed directly by collecting the cardio-pulmonary pressing parameter information; generating resuscitation characteristic information according to the cardio-pulmonary pressing parameter information; thenobtaining cardio-pulmonary image animation according to resuscitation characteristic information, and carrying out projected display; visualization of state and process of the simulation of cardio-pulmonary resuscitation can be realized, trainers can conveniently, quickly and accurately master the cardio-pulmonary resuscitation skill, and the learning efficiency is improved.

The invention relates to a radial artery puncture practice model and method and belongs to the technical field of medical machinery. The radial artery puncture practice model comprises an arm model, virtual intravascular and a pulse pressure pump. The arm model comprises virtual human skin, a virtual humeroradial tendon, a virtual carpi radialis flexor tendon and a radial artery channel, wherein the radial artery channel is located below the virtual human skin. The virtual intravascular is arranged in the radial artery channel and communicated with the pulse pressure pump so that virtual blood can be pumped into the virtual intravascular through the pulse pressure pump, and the human pulse can be simulated. Therefore, the radial artery puncture practice model enables the medical personnel to conduct puncture practice, improves the operating proficiency, relieves the pain of patients, can be repeatedly use due to the fact that the virtual intravascular and the virtual human skin can be replaced after being used, reduces the practice cost, and is simple in structure, real in simulation effect and simple and convenient in practice method.

The invention discloses a method for realizing a simulator for simulating a touch screen and the simulator. The method comprises the following steps of: setting the simulator which comprises a simulation drive and a simulation user interface (UI) module, wherein the simulation drive is provided for a first interface of an application program and a second interface of the simulation UI module; when the simulation UI module receives a simulation action command, writing the simulation action command into the simulation drive through the second interface; reading the simulation action command from the simulation drive by the application program through the first interface; and performing corresponding actions according to the simulation action command to realize simulation of the touch screen. Through the simulator, a developer of the application program can perform software development independent of an actual touch screen, and the simulator is very convenient to operate and can achieve a lifelike simulation effect.

A simulation device which imitates flame combustion images comprises an image formation screen, a flame wall which is provided with a flame type light transmission hole on a surface, a light emitting device which is provided as a light source, wherein, the light source is arranged on an internal side of a flame screen; the image formation screen is positioned on an external side of the flame wall. The simulation device is characterized in that an upward moving scanning light generator which is driven by a motor is arranged between the light source and the flame wall, the light generator can easily and manually control and regulate the upward moving speed of light beams, which causes the imitating flame combustion images of the devices more lifelike and natural, and the device has the advantages of reasonable and simple structure and easy industrial manufacturing.

The invention discloses a multiple optimization meshless soft tissue deformation simulation method, which comprises the following steps: (1) the vertex information of a soft tissue CT (computerized tomography) image is acquired, so that point cloud data are obtained; (2) a unified streamline method based on octree encoding is adopted to simplify the point cloud data; (3) a moving least square method is adopted to construct a meshless shape function according to the simplified point cloud data; (4) a Kelvin viscoelastic model is adopted to construct a non-linear viscoelastic model; (5) according to the non-linear viscoelastic model and the meshless shape function, an EFG method is adopted to construct a meshless equation of the non-linear viscoelastic model; (6) on the basis of a high-resolution approximation algorithm, at each time slice, the meshless equation of the non-linear viscoelastic model is adopted to calculate the new position of each point, and thereby soft tissue deformation simulation is fulfilled. According to the invention, the cost is low, and the simulation effect is good.

The invention provides a method for modelling and simulating a one-sided welding two-sided forming process by grids. A gridding method in computer graphics is used for modelling and simulating a welding pool and weld formation, constructing a welding bead, the welding pool and a welding line model which take plane triangle grids as a basis; and combining a double-ellipsoidal model with a Gauss thermal source model to obtain a welding pool sinking and weld reinforcement growth function. In the invention, two grids are adopted to respectively simulate front and back welding lines of a bottom layer, a filling layer and a cover layer are respectively simulated by corresponding single-layer grids; and motion of vertexes of each triangle grid is controlled by virtue of the welding pool sinking and weld reinforcement growth function, thus a sunk grid welding pool and a grid welding line are formed. Actual operation tests show that an integrated system runs stably and the simulation effect is lifelike.

An electric multiplayer frame fireplace with an internal charcoal bed and an external charcoal bed comprises a housing, an imaging light source arranged on the lower side of the housing, a light processing device and simulated charcoal beds arranged above the imaging light source and an imaging screen, the imaging screen is arranged close to the simulated charcoal beds, a front simulated charcoal bed is arranged on the front side of the lower end of the imaging screen, and a rear simulated charcoal bed higher than the front simulated charcoal bed is arranged on the rear side of the lower end of the imaging screen. In addition, the electric fireplace can simulate the sound of charcoal combustion.

The invention relates to the technical field of circuit breaker detection and discloses a device for detecting the interruption performance of a mechanical direct-current circuit breaker. The device is applied to a reclosure state and comprises first / second power circuits in parallel connection, and an input end is connected with an alternating-current power source while an output end is connectedwith a to-be-detected direct-current circuit breaker. The to-be-detected direct-current circuit breaker is connected with an auxiliary control unit through a master controller, and the auxiliary control unit is connected with a first alternating-current circuit breaker of the first power circuit and a second alternating-current circuit breaker of the second power circuit and used for driving andcontrolling opening and closing of the first / second alternating-current circuit breakers. The first alternating-current circuit breaker is connected with the master controller through a fault triggering module, the fault triggering module is used for driving the first alternating-current circuit breaker to close to generate fault signals and feeding the fault signals back to the master controller,and the master controller sends opening and closing signals of the first / second alternating-current circuit breakers to the auxiliary control unit according to a set time interval to control openingand closing of the to-be-detected direct-current circuit breaker.

The invention provides a non-contact collecting probe and belongs to the field of ultrasonic vibration detection. The non-contact collecting probe comprises a base and piezoelectric ceramic. The base is in an elastic arc structure with concave front and convex back. The piezoelectric ceramic is adhered to the back of the arc base, and a polarization direction of the piezoelectric ceramic is along through-thickness direction of the base, namely normal direction of the base. By the aid of the non-contact collecting probe, an emitting point medium is never damaged, and nondestructive testing is achieved. The non-contact collecting probe is a non-contact emission source, an emitter is not lifted or lowered at the moving position, and accordingly production efficiency of the non-contact collecting probe is high. A focus of the non-contact collecting probe on a model can be diminished to 0.2mm by focusing, the requirement for scaling down of a field focus is met, and simulation is more vivid.

The invention discloses a bolster robot, which comprises an outer body, a microcomputer, sensors, a function module and a power supply, wherein the sensors comprise a temperature sensor and a flapping frequency sensor, and the function module comprises a heartbeat simulation module, a voice module, a breath simulation module, a heating module and a flapping module. A plurality of function modules are arranged inside a bolster, so the bolster robot is practical, the negative emotion can also be relived, and the characteristic of multifunction is realized, wherein people can feel that the bolster robot has the life through the heartbeat simulation module, the breath simulation module, the heating module, the flapping module and an embracing module, and the aloneness can be relieved. The heating module can also help people to warm, an illumination module and an awakening module have practicability, and convenience is brought for the life. The voice module has a practical and unique sound playing function, the sound playing velocity can be regulated through collecting the beat frequency of a user for flapping the bolster robot by an action sensor, and the function can reach the hypnosis effect. The structure design of the heartbeat simulation module is simple, and the simulation effect is lifelike.

The invention discloses a retaining structure impact load simulation test device and method. The device comprises a test stand, a loading container and an impact mechanism, a steel wire rope is pulledto slide on a pulley through a weight which is a free falling body, a force transfer strip is pulled to drive a retaining plate to quickly slide upwards along a sliding rail to open the loading container, small steel balls in the loading container quickly gush, lateral impact load is simulated through the small steel balls to impact a retaining structure, and impact force of the small steel ballsto a test model can be changed by adjusting capacity and height of the loading container or a distance between a fixing plate and the loading container. The defect that original retaining structure member impact texts are large in occupied space, unitary and inconvenient for teaching application is overcome, and the device has the advantages of being simple in structure, uniform in impact stress,reusable, small in occupied area, suitable for various different models, capable of simulating impact tests of various fluid pressures, high in adaptability and suitable for being applied in scientific research teaching tests, and the method is simple and applicable.

The present invention relates to a thyroid nodule model which comprises a simulation human body upper half module and a simulation thyroid nodule module. The simulation thyroid nodule module is arranged at the corresponding human body structure position of the simulation human body upper half module and is formed by a biomimetic thyroid housing, an electroluminescent telescopic bodies and a control circuit board, wherein the electroluminescent telescopic bodies are arranged in the biomimetic thyroid housing side by side in an array arrangement, the control circuit board comprises a plurality of control circuits corresponding to the electroluminescent telescopic bodies in the array arrangement, the control circuit board also comprises a control circuit program editing module, through controlling different electroluminescent telescopic bodies at different positions in the array and the different degrees of stretching of the electroluminescent telescopic bodies, thus different positions of the biomimetic thyroid housing are raised in different degrees to simulate the thyroid nodules of different positions and different degrees, a simulation effect is realistic and can be used repeatedly, the model is used for training medical students to carry out observation and palpation training of the thyroid nodule, and the teaching effect is improved.

The invention discloses a six-limb insect motion mode determination method, a bionic six-limb insect robot and a use method thereof, belonging to the field of bionic robots and solving the problems that the existing six-limb insect motion mode is undefined and a highly bionic six-limb insect robot suitable for severe environments, such as poor road conditions, can not be manufactured according to the prior art. The robot disclosed by the invention comprises a body and limbs, wherein the limbs include a pair of front limbs, a pair of middle limbs and a pair of rear limbs, wherein the front limbs are symmetrically arranged at two sides of the front end of the body respectively, the middle limbs are symmetrically arranged at two sides of the middle of the body respectively, and the rear limbs are symmetrically arranged at two sides of the rear end of the body respectively; the body is provided with control elements; the limbs are provided with execution elements; and the execution elements are connected with the control elements. According to the invention, the six-limb insect motion mode can be accurately determined, and the bionic six-limb insect robot suitable for severe environments, such as earthquake relief, can be manufactured.