1708 results about "Jumping" patented technology

Medical device and methods for delivery or implantation of prostheses within hollow body organs and vessels or other luminal anatomy are disclosed. The subject technologies may be used in the treatment of atherosclerosis in stenting procedures or a variety of other procedures.

An apparatus for providing exercise to recreational users and training to professional users comprising a support frame on which a bicycle frame is mounted and a resistance generation unit coupled to the support frame to provide resistance against the pedaling of the user. The resistance unit comprises a magnetic field generation source and a flywheel having an annular ring constructed from a plurality of segments of a non-magnetic, conductive material. The resistance exercise apparatus and trainer utilizes the flywheel to eliminate the need for the conventional rear wheel of a bicycle. The use of the flywheel as part of the resistance generation unit creates a “single-stage” resistance exercise trainer, because the resistance generated on the flywheel is transmitted to the user through a direct chain drive of a conventional bicycle. According to another aspect of the present invention, the resistance exercise apparatus includes a chain tensioning mechanism. The chain tensioning mechanism provides a method of tightening or loosening the tension of the chain to improve the overall efficiency of the chain drive mechanism and prevent the chain from “jumping” off the chain ring during operation.

The invention relates to a wireless sensor network multi-source data fusion method based on queries. The wireless sensor network multi-source data fusion method based on the queries comprises clustering, interest spreading and data transmission. In the clustering process, node residual energy to cluster, density of a node placed area and the distance from cluster heads to a base station are utilized. In the interest spreading process, a sink node firstly spread interest news to all cluster heads which then determine whether interest is spread inside clusters according to actual conditions. In the data transmission process, a neighbor node large in priority is chosen as a next jumping node. A priority function enables query data to be transmitted to the sink node along the route which is small in energy consumption, large in residual energy and short in distance according to introducing of neighbor node positions, the fact that whether introduced nodes are source nodes or the cluster heads, residual energy, communication cost of two nodes and the like, and data fusion is performed on the data intersecting position. The wireless sensor network multi-source data fusion method based on the queries can effectively balance node energy consumption in networks, improve energy using efficiency and prolong a network life cycle.

The invention discloses an automatic recognition method of the congested traffic state and the position of a congested point of a city expressway. The method comprises the following steps that 1, threshold values of traffic parameters of divided lanes of all monitored sections are set; 2, videos / images of vehicles in a field of view are collected and converted to generate traffic data informationof the divided lanes, and the traffic data information of the divided lanes is transmitted to a traffic information processing server; 3, analysis of the congested state and the position of the congested point is conducted by the traffic information processing server by means of real-time traffic data information and a traffic parameter threshold value database; 4, according to user setting, an analysis result and a corresponding suggestion are transmitted to a user terminal. By means of the method, the section position and the lane where a traffic event such as goods dropping or malicious queue jumping or a fault shutdown / illegal parking behavior or a traffic accident happens can be fast judged in first time so that a traffic management department can conveniently and reasonably deal in time, subsequent worse traffic congestion can be avoided, and the rate of secondary accidents can be lowered.

The invention relates to a psychological assessment method based on a virtual reality technology. Virtual scenarizing processing is carried out on a psychological scale; answers, behaviors, and physiological data of a subject are collected in real time; on the basis of the answer options of the subject, intelligent jumping of problems of the psychological scale is completed; the scale content is analyzed comprehensively and intelligently, three kinds of data are trained by a convolution neural network and a recurrent neural network and then feature fusion is carried out, the processed information is inputted into a softmax layer to obtain a psychological assessment model; with the psychological assessment model, the psychological assessment result of the subject is compared with a doctor tag, loss function calculation and gradient reversed conduction are carried out to correct the answer options of the subject intelligent; and then the psychological, behavior and the corrected answer data are calculated by the psychological assessment model to obtain a final assessment result. According to the invention, on the basis of combination of VR, intelligent sensing, big data analysis, artificial intelligence and other technologies with the traditional psychological assessment method, the accuracy of psychological assessment is improved and the medical resources are saved effectively.

A toy vehicle that is capable of lifting off a travel surface by means of a cam member. The toy vehicle comprises a chassis that has first and second ends and first and second drive wheels disposed between the first and second ends. The first and second drive wheels are aligned along an axis and are coupled to a drive system. To provide the toy vehicle with “tank steering” capabilities, the first and second drive wheels may be controlled independently of each other. One or more cam members aligned along the same axis as the first and second drive wheels are adapted to selectively rotate about the axis so that an outer edge contacts the travel surface, causing the toy vehicle to lift into the air. The cam members may be controlled by a cam motor, which operates independently of the drive system. In one embodiment, the toy vehicle and its cam members are adapted to be fully operable in an upright, first drive position and an upside-down, second drive position.

The invention discloses an automatic wire arranging device and belongs to the technical field of cable manufacturing. The existing wire arranging method is prone to notches, wire accumulation and wire jumping. The device comprises a portal frame, a transverse moving platform, a mechanical arm, a lifting mechanism, a horizontal moving mechanism, a dynamic complementing mechanism, an automatic reversing mechanism, a wire winding mechanism, a portal auxiliary frame, a controller and an encoder. Wire arranging is conducted according to a set pitch, in a wire arranging process, the wire arranging device can conduct position complementing control according to actual production conditions, a sheathed line and a designed mechanism structure are arranged in a set angle range, and the conditions of notches and wire jumping during wire arranging can not happen.

The invention discloses a multifunctional bionic jumping and walking robot. Only a jumping track and only jumping movement can be achieved by existing robots, the existing robots can only move on flat terrain and can not be adapted to the complicated terrain environment in the natural world. According to the multifunctional bionic jumping and walking robot, two fore limb bionic mechanisms are symmetrically arranged on the front portion of the trunk of the robot, two hind limb jumping mechanisms are symmetrically arranged on the rear portion of the trunk of the robot and are both connected with a spring locking and unlocking mechanism, the spring locking and unlocking mechanisms can drive and lock or unlock the hind limb jumping mechanisms, and each spring locking and unlocking mechanism comprises a main motor, a third straight gear, an input shaft, a fourth straight gear, a pawl, a clutch movable block, a clutch fixed block, a shifting fork driving motor, a second crank, a second connecting rod and a shifting fork. According to the multifunctional bionic jumping and walking robot, jumping angle adjustment, jumping height adjustment, continuous jumping and automatic resetting can be achieved, frog type jumping and kangaroo type jumping can also be achieved, and the multifunctional bionic jumping and walking robot can turn on a fixed position and walk so as to be adapted to the complicated environment.

The invention provides a fault diagnosis method, a fault-tolerant control method and a fault-tolerant control system of an automobile BLDC position sensor. The fault diagnosis method and the fault-tolerant control method are carried out according to a starting stage and a normal speed regulation stage of a motor. At the starting stage, the position of a rotor is judged according to signal jumping of the position sensor, then the fault state of the position sensor is judged, and accordingly the mode of starting the motor is selected. At the normal speed regulating state, the rotor position value is calculated according to the rotor position estimation technology and is compared with a position sensor signal to judge the fault state, and accordingly the rotor position and the motor revolving speed can be verified. A fault-tolerant control module comprises a rotor position observing unit, a position sensor fault diagnosis unit and a fault-tolerant control unit all of which are connected in pairs. According to the fault diagnosis method, the fault state of the position sensor can be accurately judged, the fault-tolerant control method is adopted under the fault state of the position sensor, the normal starting and the speed controlling of the motor can be maintained, and insecurity or other damages caused by accidental sensor fault can be effectively avoided.

The invention discloses a control method of an IPM electromotor for driving an electric motor car. According to the working characteristics of the IPM electromotor used on the electric motor car and the characteristics and advantages of various control methods, a segmental control strategy and a method for accurately detecting the start of the electromotor as well as the position and the rotational speed of a rotator during the operation provided are provided. A hall sensor is used for carrying out the method of rough positioning first and scanning next, so that the relatively accurately positioning of the initial position of the rotation in a static state can be realized, the electromotor can be successfully and easily started no matter in the case of idle load, light load or heavy load,and the reliability of the start and operation of the electromotor can be greatly improved. After the IPM electromotor is successfully started, output signals of the hall position sensor undergo rising edge capturing and trailing edge capturing by using software. According to a signal jumping edge, the position of the rotator is corrected in the cases of a low rotational speed and a high rotational speed. When the electromotor operates, a T method is adopted for speed measurement, and an algorithm undergoes certain adjustment in the cases of the low rotational speed and the high rotational speed. When the position and the rotational speed of the rotator during the operation are correctly detected, the segmental control strategy such as peak torque current control and field-weakening control can be adopted so as to ensure that a peak torque is output during the operation of the electromotor.

The invention provides a facial expression recognition method and a system, and a training method and a system of a facial expression classifier. The facial expression recognition method specifically comprises the following steps: carrying out feature extraction on an optical flow motion field fusing the sequences of a binary image and a gray scale image and obtaining a feature sequence; and taking the inputted feature sequence as an observation sequence and judging the expression category of the observation sequence according to the facial expression classifier, wherein the facial expression classifier is obtained by combining hidden markov models of a variety of expressions, and the hidden markov models are obtained by training neutral expression sequences and weak expression sequences in facial expression samples. The invention is used for overcoming the shortcomings of discrete results, jumping and unnatural property of the existing expression recognition.

The invention provides a page jumping method and device, wherein the method comprises the following steps of obtaining a page mark to be jumped; finding the corresponding jumping router from a page router table according to the obtained mark, wherein the jumping router comprises the corresponding relationship of the page mark and the jumping page; jumping to the jumping page on the basis of the found jumping router. The method and the device have the advantage that the goal of fast and flexibly deploying new services without APP version upgrading is achieved.

The invention provides a pixel driving circuit, a pixel driving method, a display panel and a display device. The pixel driving circuit comprises a first pixel driving unit and a second pixel driving unit, wherein the first pixel driving unit comprises a first driving transistor, a first storage unit and a first driving control unit, the first driving control unit controls the jumping compensation on threshold voltage of the first driving transistor through exerting jumping voltage on data voltage in the first compensation stage, the second pixel driving unit comprises a second driving transistor, a second storage unit and a second driving control unit, and the second driving control unit controls the jumping compensation on threshold voltage of the second driving transistor through exerting the jumping voltage on the data voltage in the second compensation stage, and controls the luminescence of a second luminous element. The aperture opening ratio and the cost of a pixel unit can be greatly reduced.

Embodiments are described for an exercise sled including an upper portion detachably coupled to a lower portion through telescoping leg assemblies located at the corners of the sled. The upper portion includes a flat jumping surface to facilitate jumping or step-up type exercises, and the lower portion includes a sled rail portion to facilitate sliding across a surface, and a weight platform for the addition of plate weights. A number of attachment hooks facilitate the use of cords or handles to perform resistance exercises using the sled as an exercise platform.

The embodiment of the invention provides a quick navigation switching method and device of a page, and a terminal. The method comprises the following steps: receiving a quick navigation request input by a user, wherein the quick navigation request can be used for starting a shortcut navigation mode and outputting a target page under the shortcut navigation mode; and receiving a page switching request input by the user under the shortcut navigation mode, and switching to a first page in the target page according to the page switching request. The embodiment of the invention heavily presses the touch screen in a certain page in an application program to arouse the shortcut navigation mode of the page, and realizes the quick switching and jumping of the navigation in the application through an interaction operation of clicking or sliding. Operation steps in a traditional page switching page that multiple clicks need to be carried out, pages jump to return level by level and a target column is selected to go deep into a next level of page can be effectively reduced, and user operation efficiency and user experience are greatly improved.

The invention discloses a ring-shaped winding machine which comprises an open-type machine head, an electric cabinet, a transmission mechanism, a wire storage mechanism, a winding mechanism and a wire arranging mechanism, wherein the wire arranging mechanism comprises a mounting seat, a driving rubber wheel provided with a tray and a driven rubber wheel, and the driving rubber wheel provided with the tray is connected with a second transmission mechanism in a transmission way; the wire storage mechanism is provided with a wire storage ring, the winding mechanism is provided with a gear provided with an opening, and the gear provided with the opening is connected with a first transmission mechanism in a transmission way and connected with the wire storage ring when rotating clockwise. The ring-shaped winding machine is characterized in that the second transmission mechanism is driven by a stepper motor, the electric cabinet is internally provided with a singlechip control system, a wire distance amending button is arranged on the electric cabinet, the stepper motor is controlled by a singlechip, and the wire distance amending button is electrically connected with the singlechip. The ring-shaped winding machine can increase or reduce the number of wire distance pulse by the control of the wire distance amending button and the singlechip, so that enamelled wires can be accurately wound into a wire groove all the time, and the phenomenon of wire jumping or overlapping can be stopped.

The invention consists in an inflatable ultralight parachute deployable before jumping, for jumping or releasing a load from any altitude, without experiencing unduly harm from the impact with the ground. It comprises at least one torus-shaped inflatable tube covered by a thin film substantially flat shroud whose buoyance lifts the parachute and when pulled down by the gravity of the attached body develops the braking force that decelerates its fall. The ultralight parachute is deployed either by the jumper if he has one, or by emergency helpers on the ground and subsequently lifted to the potential jumper. Optional accessories that enhance the braking force of the parachute and attenuate the impact of the attached body with the ground, include an aerodynamically shaped inversed skirt surrounding the torus-shaped tube, an electro-mechanical reel that upon activation shortest the distance between the jumper and the canopy and an air mattress that floats beneath the jumper's feet for reducing the impact of the fall when hitting the ground.

The invention discloses a miniature multifunctional human body posture intelligent detector and a detection method, and belongs to the field of human body posture detection. The detector comprises a posture sensing and detecting unit, an A / D converting unit, an information processing unit, a memory unit, an input unit, an output unit and a power supply unit, and is characterized in that: sensors adopted by the posture sensing and detecting unit are a horizontal accelerometer and a vertical accelerometer. The detector utilizes accelerometers as posture sensors, and provides kinematical parameters under partial motion states for examinees, wherein the motion states mainly include running, rapid walking, jumping and the like, and the parameters include running or walking frequency, kinematic velocity, jumping height and distance, and angle and speed of rising to jump. The detector can provide posture information in the maximum range for people in need of posture correction, comprises posture detection under various conditions such as relative rest, walking or taking a bus and the like of the examinees, and realizes prompt type active posture correction and good habit cultivation.

A pet step is a modular foam core item which can be used alone or in an arrangement with other pet steps—referred to as cubes—to form a stair and offers a comfortable way for a pet that has been debilitated by age, surgery, illness, or injury to climb, e.g., from the floor to the couch and down, eliminating the impact of jumping. Each step is formed of a washable fabric cover stretched across a high-density foam core, the core being usually of regular block shape, but alternatively in the shape of a trapezoidal block, right wedge, or other. The cover may be made from various fabrics with different textures, colors, and designs, and is secured around the foam core using a band of elastic. Thus, the cover is easily removable and washable. The pet steps are intended to be used in a stair, formed by placing the steps adjacent one another with the elasticized opening of the cover on the bottom sides of the steps and mating and engaging the optional fasteners, such as hook-and-loop fasteners, which are mounted between the adjacent step surfaces.

The invention provides a screen clearing circuit and a display device. The screen clearing circuit comprises multiple first switch elements and multiple second switch elements. Each first switch element comprises a first control end, a first input end and a first output end, wherein the first control end is connected with the first input end and receives a control signal, each first output end is connected with one scanning line corresponding to a display panel and used for inputting the control signal to the scanning line. Each second switch element comprises a second control end, a second input end and a second output end, wherein the second control end receives the control signal, each second input end is connected with one data line corresponding to the display panel, and the second output end is connected with a public electrode of the display panel. When the display panel normally displays frames, the control signal is a low-level signal. When the display panel is powered off, the control signal is changed into a high-level signal through jumping. The display device can effectively complete screen clearing of the display panel by adopting the screen clearing circuit and is simple in structure and low in cost.

It relates to a hydraulic dual work station automatic mold changing system. It comprises tracks, mold changing cart, electric and pneumatic system, features in two mold work stations on the mod changing cart with each one fixed with chain passing grooves, guide track, guide stopper and spring pin to prevent the jumping of the mold plates, positioning device under the cart, crashproof device at both ends, middle connection platform between the track and the hydraulic machine, chain passing groove, guide track and stopper on the platform, delivery device at the other end of the track opposite to the connection platform, using front end hooking push and pull chains as the extraction tool for mold delivery and exchange. It is independent of the main of the hydraulic machine, reduces its structure, land occupation, auxiliary working period, meeting the need for processing parts of different specifications and kinds.

The invention discloses a gait generation and optimization method for a biped robot. The method is characterized in that a gait library of the biped robot is constructed in a finite state machine according to a target pose of the state of the biped robot; mutual switching conditions among all states of the robot are set and triggered; in each state switching process, a joint cubic interpolation method is used for planning the movement track of support legs, and a gauss pseudo-spectral method is used for optimizing the movement track of swing legs; and finally, the gait of the biped robot in different motion modes is generated by the finite state machine. According to the gait generation and optimization method for the biped robot, the constraint of ZMP is not considered, and all the bipedrobots with or without the sole edges of the feet can generate the walking track by the method; and the planning process is simple and operable and is more suitable for online generation, and the biped walking robot can stably walk and finish walking, running, jumping and other actions by matching with a simple control strategy.

The invention discloses a single-leg robot jumping mechanism driven through a connecting rod. The single-leg robot jumping mechanism comprises a machine body, a thigh and a shank which are hinged in sequence. The thigh is provided with a jumping drive device for driving the shank to rotate. The hinged position of the machine body and the thigh is provided with a direction drive device for driving the thigh to rotate. The upper end of the shank is provided with a shank ejector plate hinged to the lower end of the thigh. A drive rod is arranged between the shank ejector rod and the jumping drive device. The drive device and the shank ejector rod are hinged to the two ends of the drive rod respectively, and an elastic energy storing piece is arranged between the thigh and the shank ejector plate. The direction drive device can drive the thigh to rotate to achieve the direction control. The jumping drive device and the direction drive device are close to the machine body, the rotational inertia of the thigh relative to the machine body is reduced, the energy consumption of a first drive motor can be reduced, and the moving stability and agility of robot movement are improved. The stability of a robot is improved through balancing fly wheels. The energy can be stored and buffering can be achieved through the elastic energy storing piece and balancing pieces.

The invention discloses a self-reset wheel-leg jumping composite mobile robot. The self-reset wheel-leg jumping composite mobile robot comprises a jumping device, a reset and wheeled driving integrated device and a torsional spring energy storage and ground falling buffer integrated device, wherein the jumping device is used for realizing the function of storing and releasing jumping energy; the reset and wheeled driving integrated device is used for realizing the functions of reset after the jumped robot falls to the ground and topples and wheeled driving; and the torsional spring energy storage and ground falling buffer integrated device is used for realizing the functions of storing jumping energy by a torsional spring and buffering the ground impact force during ground falling by using the torsional spring and an arc-shaped soleplate. The jumping motion and wheeled motion are combined to improve the maneuvering performance of the robot, namely the wheeled driving is adopted on the flat ground, the efficiency is reliable and the maneuvering performance is improved. When the robot meets steep terrains or cannot pass through barriers by the wheeled motion, the jumping motion is switched, the jumping gesture and storage energy are regulated to control the jumping height and jumping distance effectively, and the different jumping models are selected according to requirements of environment. When falling to the ground after jumping and toppling, the robot can be reset by a reset mechanism, so that the robot is in the upright state again to complete the next jumping.

The invention discloses a bionic jumping and walking mechanism. Existing robot can only move on the flat terrain and can not be adapted to the complicated terrain environment in the natural world. According to the bionic jumping and walking mechanism, the jumping mechanism is driven and locked or unlocked through a spring locking and unlocking mechanism, a main motor drives a fourth straight gear, an input shaft is supported by a gearbox through a bearing, the fourth straight gear, a ratchet wheel and a clutch fixed block are all fixed to the input shaft, the ratchet wheel is meshed with a pawl, a clutch movable block is connected with an output shaft through a spline, the clutch movable block and the clutch fixed block are embedded together, a base of a shifting fork driving motor is fixed to the gearbox, a second crank is fixedly connected to an output shaft of the shifting fork driving motor, the two ends of a second connecting rod are hinged to the second crank and the end of a shifting fork respectively, the middle of the shifting fork is hinged to a supporting shaft of a motor supporting frame, and a U-shaped fork body of the shifting fork is embedded in an annular groove of the clutch movable block. According to the bionic jumping and walking mechanism, jumping angle adjustment, jumping height adjustment, continuous jumping, automatic resetting and walking can be achieved so that the bionic jumping and walking mechanism can be adapted to the complicated environment.

The invention discloses a network video online playing method. The method comprises the following steps: when playing is started or a segmentation instruction arrives, partitioning a current video into a plurality of time slices; downloading video data within starting s seconds of the time slices from a server, and storing the downloaded video data, wherein the s seconds indicate preset duration; when a progress bar of the current video is dragged to a specified time point, determining a time slice to which the specified time point belongs; and starting to play the video data from a starting frame of the time slice to which the specified time point belongs. The invention also discloses a network video online playing device. According to the method and the device, the video data within starting time periods in the time slices are downloaded and stored in advance during online playing of a network video, and the video data at the specified time point do not need to be acquired once again but direct jumping to the starting frame of the time slice to which the specified time point belongs is performed to play the video data when the progress bar is dragged to the specified time point, so that buffer waiting time is shortened, and a response speed of video playing is increased.

The invention discloses a light-spectrum phase calibration system and a light-spectrum phase calibration method based on a cascade Mach-Zehnder interferometer. A first reference interference signal with optical path difference d1 close to maximum imaging depth of the system and a second reference interference signal with optical path difference d2 close to zero optical path are separated from a cascade MZI (Mach Zehnder Interferometer) interference spectrum signal through Fourier transform, filtering and inverse Fourier transform; the first reference interference signal is used for demarcating and calibrating a fractional part of a light spectrum phase jump at the maximum imaging depth part in real time during a wave-number sampling process; the second reference interference signal is used for determining 2pi integer multiples of the light spectrum phase jump at the maximum imaging depth part, wherein the phase jump caused by an initial wave-number jumping is in linear relation with the depth; and the practical phase jump at any depth can be calibrated by combining the two reference interference signals. According to the light-spectrum phase calibration system and the light-spectrum phase calibration method disclosed by the invention, not only is real-time linear calibration realized, but also calibration precision of the light-spectrum phase jump is ensured, so that a 2pi confusion problem of the light-spectrum phase jump calibration is solved, and the real-time high-flexibility phase detection and the reconstruction of phase images can be realized.