163 results about "Inertial motion" patented technology

A portable electronic device that can obtain position information despite lacking GPS reception capability includes data storage that stores a reference position, a plurality of inertial motion sensors, and computational circuitry. The inertial motion sensors detect movement of the portable electronic device and output motion signals to the computation circuitry indicative of the sensed movement. In response to these motion signals and the stored reference position, the computational circuitry computes a position of the portable electronic device.

The invention discloses a screen display-controlling method facing to a slide body of a touch screen, which comprises the following steps of: (1) setting a coordinate system on a touch screen; (2) detecting the sliding action of a user on the touch screen with the coordinate system, and recoding parameters correlative to the sliding action; and (3) controlling the moving direction, speed and displacement of the slide body displayed on the screen according to the parameters, wherein the motion of the slide body is an inertial motion which consists of a positive acceleration stage and a negative acceleration stage. The method can control the display status of the slide body in the screen according to the sliding operation of the user on the slide body of the touch screen, reflects the factors such as the moving direction, speed, acceleration and the like of the slide body, and leads the user to obtain the visual effect which is close to the motion of objects in the real world.

A method and apparatus of detecting and using motion modes in a mobile device is described. Movement data is collected from an inertial motion unit (IMU) of the mobile device and compared to two or more sets of training data, each set of training data corresponding to a different motion mode. Then, a motion mode is determined to be the current mode of the mobile device on the results of the comparison. The motion mode is used by the mobile device in a variety of applications.

A scroll viewer control that displays associated content having inertial snap points in a scrollable view. The scroll viewer control applies inertial movement to displayed content such that even after a user completes a scroll gesture, the displayed content continues to scroll with reducing velocity until the scroll slows to a stop within the scrollable view. In so doing, the scroll viewer control enforces an inertial snap point by causing the scroll to stop when a boundary of the scrollable view coincides with the inertial snap point. A content control may implements an interface that allows the scroll viewer control to discover the snap point set associated with the content. Furthermore, the content control may notify the scroll viewer control of changes in the snap point set.

A motion-coupled visual environment prevents, reduces and/or treats motion sickness by sensing inertial motion and providing a corresponding evocative image for a subject to view. Inertial sensors may include accelerometers, gyroscopes or a variety of other different sensor types. A cross-coupling algorithm may be used to cross couple different sensed inertial motions. A variety of mapping schemes may be used to map sensed inertial motion to corresponding motion within the evocative scene displayed on the display. Applications include reducing motion sickness on passenger vehicles such as airplanes, trains and cars; on military vehicles such as ships, airplanes, helicopters and the like; and reducing “cybersickness” in the context of simulations on moving platforms.

A micromechanical structure for a MEMS three-axis capacitive accelerometer is provided with: a substrate; a single inertial mass having a main extension in a plane and arranged suspended above the substrate; and a frame element, elastically coupled to the inertial mass by coupling elastic elements and to anchorages, which are fixed with respect to the substrate by anchorage elastic elements. The coupling elastic elements and the anchorage elastic elements are configured so as to enable a first inertial movement of the inertial mass in response to a first external acceleration acting in a direction lying in the plane and also a second inertial movement of the inertial mass in response to a second external acceleration acting in a direction transverse to the plane.

A manually and electrically actuating toy gun structure includes a gun shell, a trigger, a gun machine core tube, and a piston. The control structure includes a first interlocking rod, a first push member, a second interlocking rod, a transmission set, a triggering device, a gun shell, and a push-and-propping-up block. One end of the first interlocking rod has a connecting pin interlocking with the first push member. The other end of the first interlocking rod has a connecting hole connecting to the trigger and being driven to slide along the x-direction. The hole of the first push member is connected to a connecting end of the first interlocking rod and is contacted with the push-and-pluck rod of the switch. The power supply of the electric motor is switched on when the first push member is driven by the first interlocking rod to push the push-and-pluck rod. The arcuate surface of the draw bar on the second interlocking rod performs action in corresponding with the interlocking salient pin of the first compound gear. When the power supply of the electric motor is switched on, the interlocking salient pin at the resilient cantilever of the first compound gear in the transmission set performs action making the piston of the triggering device to be driven backward and the gun machine core tube on the triggering device to be driven by the interlocking salient pin to displace backward that makes the bullets contained in the cartridge drop at the pre-determined position. When the lower rack under the piston separates from the first compound gear, the piston returns back to the original position and pushes out the compressed air to shoot off the bullet. On the other hand, when the power supply of the electric motor is turned off making the first compound gear generate reversed rotation due to the inertial motion, the interlocking salient pin is capable of relieving the catching with the draw bar to make the first compound gear positively mesh with the lower rack.

The invention discloses a solar power generation device capable of automatically removing snow and dust. The solar power generation device capable of automatically removing the snow and the dust comprises a solar photovoltaic module, a support pillar, a rotation shaft, a spring, a drive rod and a cam drive unit, wherein the rotation shaft is vertically fixed on a rotation unit, the rotation unit is installed on a structural embedded part, the support pillar is connected with the rotation shaft in rotation mode, the solar photovoltaic module is fixedly arranged at the top of the support pillar, the tail of the support pillar is connected with the bottom of the rotation shaft through the spring, the cam drive unit is fixedly installed on the rotation shaft, one end of the drive rod is fixed on the support pillar, and the other end of the drive rod is clamped on a cam edge of the cam drive unit. The solar power generation device capable of automatically removing the snow and the dust only uses the spring and a cam mechanism to control trembling inertial motion of the solar photovoltaic module, and effectively achieves accumulated snow removal and sand dust removal.

The invention discloses a novel MEMS (micro electro mechanical system) centrifugal-type gyroscope technology, belonging to the field of inertia measurement. Four mass blocks of a gyroscope are distributed annularly and uniformly at the periphery of a central anchor point 7, and each mass block and the central anchor point 7 are connected through an elastic beam 6; the adjacent mass blocks are connected through two parallel arc decoupling beams 7; and a group of movable comb teeth 8 are distributed on each mass block 4, and form comb tooth capacitance with corresponding fixed comb teeth 9. When the angularity speed is input in the environment, the MEMS centrifugal-type gyroscope is subjected to displacement because of centrifugal force, and the angularity speed which is input in the environment can be reckoned through the detection of the displacement. Compared with the other MEMS gyroscopes, the gyroscope is not required to be driven, the detection of the angularity speed can be realized by utilizing the inertial motion of the gyroscope, thus the energy consumption is reduced; driving does not exist, the Brown noise can be reduced greatly, and the zero deflection stability is improved greatly; and simultaneously the cross coupling error of the MEMS oscillating-type gyroscope can be eliminated, and the precision is improved.

A method and apparatus for performing motion recognition using motion sensor fusion and an associated computer program product are provided, where the method is applied to an electronic device. The method includes the steps of: utilizing a plurality of motion sensors of the electronic device to obtain sensor data respectively corresponding to the plurality of motion sensors, the sensor data measured at a device coordinate system of the electronic device, wherein the plurality of motion sensors includes inertial motion sensors; and performing sensor fusion according to the sensor data by converting at least one portion of the sensor data and derivatives of the sensor data into converted data based on a global coordinate system of a user of the electronic device, to perform motion recognition based on the global coordinate system, in order to recognize the user's motion.

The invention provides a motion measuring method and a motion measuring device. The method comprises the following steps: obtaining measured values of an acceleration sensor, a gyroscope sensor and a magnetic sensor of a motion terminal; obtaining the three-dimensional gravitational acceleration and azimuth angle of relative carrier coordinates of the motion terminal; obtaining the three-dimensional motion acceleration of the relative carrier coordinates; obtaining the three-dimensional motion acceleration of relative earth coordinates; obtaining the acceleration, the speed, the displacement and the stereoscopic motion track of the relative earth coordinates. According to the invention, a specific process calculation method is adopted to greatly reduce various errors produced in inertial motion posture calculation and subsequent computations, so that brand new, convenient, rapid and efficient measuring method and device are provided for body motions such as boxing, kicking and the like of human bodies and similar motions of objects in natural world.

The invention provides a multi-list redundant strapdown inertial measuring device for a laser gyroscope. According to the multi-list redundant strapdown inertial measuring device, three orthogonally-arranged gyroscopes Gx, Gy and Gz and two obliquely-arranged gyroscopes Gs and Gt can be used for sensing an angle speed of a carrier moving in an inertial space; three orthogonally-arranged accelerometers Ax, Ay and Az and two obliquely-arranged accelerometers As and At can be used for sensing a specific force of the carrier moving in the inertial space; a resolving computer of the device can be used for collecting inertial information in real time and at a high speed and the inertial information is sent to a navigational computer in real time by a high-speed bus; after the navigational computer obtains inertia type instrument information transmitted by the strapdown inertial measuring device for the laser gyroscope, information including a course, a posture, a speed, a position and the like of the carrier can be calculated and output in real time and is supplied to a guidance and posture control system for use.

The invention discloses a protection method and a protection device thereof when using a punch, which relate to the technical field of punching by using punches. The device mainly comprises a detection part, a hydraulic braking part and a control part, wherein the detection part comprises a light source and a photoelectric sensor; the braking part comprises a hydraulic cylinder, an electromagnetic valve and an oil passage; and the control part comprises a programmable controller and a relay. In case of abnormal situations, the photoelectric sensor sends a signal to the programmable controller (PLC), the PLC processes the signal and simultaneously sends execution commands to the intermediate relay and the electromagnetic valve, and the intermediate relay and the electromagnetic valve immediately cut off a power supply of a motor and cut off the oil passage of hydraulic cylinder after receiving the commands, thereby preventing the inertial motion of a punching head. The device can effectively lead the whole punch to stop working in time, thereby solving the safety problem of an operator. The whole reaction process is rapid and the reliability is high, thereby being particularly applicable to safety devices of ordinary punches.

The invention discloses a method and device for compensating three-dimensional inertial motion sensing. The method comprises the following steps of: performing data acquisition on three-dimensional inertial motion by a three-dimensional inertial sensing system, thus acquiring three-dimensional sensing data of the three-dimensional inertial motion; performing data acquisition on the three-dimensional inertial motion by a two-dimensional sensor which synchronously works with the three-dimensional inertial sensing system, thus acquiring two-dimensional sensing data of the three-dimensional inertial motion, wherein the two-dimensional sensing data synchronously corresponds to the three-dimensional sensing data; compensating the three-dimensional sensing data with the two-dimensional sensing data in reference to a standard database or a correction compensation relation and/or a correction compensation parameters; and performing operation processing on the compensated three-dimensional sensing data, thus further acquiring positioning data of the three-dimensional inertial motion. The method is simple in implementation mode, low in cost, high in stability, high in precision and accurate in positioning and can be widely applied to motion detection.

The invention discloses an inertial motion capture pose transient calibration method and an inertial motion capture system. The inertial motion capture system comprises a data communication module, one or more pose capture modules and a data terminal, wherein each pose capture module comprises a nine-axis sensor (and a microprocessor), and one of the pose capture modules is a reference module; and pose transient calibration is performed by establishing a relationship among a world coordinate system V(w), an object capture coordinate system and an installation coordinate system in the system. Through the method and the system, a user can transiently and quickly finish system calibration only by adopting a pose, and pose correction and automatic quick adjustment of a skeleton proportion of a virtual model can be performed in the calibration process, so that the matching degree of action nodes is increased, the problem of inconsistent skeleton proportions of the virtual model and an actual object is effectively solved, the actions of a captured object are highly recovered, and the precision of motion capture is improved; and the operation is simple, so that the action capture time is greatly shortened.

Exhibiting, exemplifying, and personifying science and technology, an adjustable, hand-held, educational pendulum instrumented with a visual inertial motion sensor resembling a lollipop consists of two hard rubber disks, a pendulum bob and a sensor mass, threaded onto a composite plastic line. Sliding the disks on the line configures the educational pendulum for various new and classical science experiments, such as oscillating naturally, changing mass of bob, changing length of arm, sensing gravity, and sensing changes in motion. Like a person, the visual inertial sensor, a mass on a spring or the pendulum equivalent, ordinarily flexes to sense changes in motion, but not that of a simple coasting swing, creating a puzzling mystery. Consciously experiencing interacting pendulum parts transferring energy push and pull on one another to rhythmically move and flex per laws of nature can help a person to better know and appreciate how transfers of energy animate and power our wonderful world.

An intra-oral camera has a projector that is energizable to emit patterned illumination and an imaging sensor that is energizable to obtain image content. An inertial motion sensing element provides signals indicative of acceleration of the intra-oral imaging apparatus along at least one axis. A processor is in signal communication with the projector, the imaging sensor, and the inertial motion sensing element and is configured to initiate image acquisition according to signals obtained from the inertial motion sensing element.

An embodiment of the invention provides a positioning method and a mobile terminal. The positioning method is applied to the mobile terminal provided with a positioning module, and comprises the steps of: controlling the positioning module to turn on when turn-on interval time of the positioning module arrives, and acquiring first position information of the mobile terminal at first time through the positioning module; controlling the positioning module to turn off when the first position information is acquired; acquiring first motion direction information and first acceleration information of the mobile terminal at the first time; and determining a first inertial motion trajectory of the mobile terminal according to the first position information, the first motion direction information and the first acceleration information. The positioning method and the mobile terminal can ensure the precision of positioning, avoid long-term power consumption of the positioning module since the positioning module does not operate continuously, effectively save electric quantity of a mobile terminal battery, and prolongs the battery life of the mobile terminal battery.

The invention discloses a tension leg platform based vertical axis wind turbine and vertical-horizontal two-direction wave power generation integrated structure, and belongs to the field of ocean energy utilization. The integrated structure comprises a vertical axis wind turbine, a two-direction wave power generation device, two-direction hydraulic power generation systems located in the two-direction wave power generation device, a tower structure, a tension leg platform structure and a matched power transmission system. Relative vertical motion of the two-direction wave power generation device and the tower structure drives a vertical piston (or relative horizontal motion drives a horizontal piston) to compress liquid in hydraulic cylinders, the liquid passes through first unidirectionalinflow valves (or passes through second unidirectional inflow valves in the reverse direction) to enter hydraulic motors, the hydraulic motors are driven to rotate, and therefore power generation devices are driven to generate power. In addition, tension leg structures can effectively control longitudinal shaking and transverse shaking of a floating platform, good operation of a top fan is facilitated, and huge tower bending moment loads caused by top large-mass cabin inertial motion are controlled.

The invention relates to a gear and rack type reciprocating impact device which comprises a casing, a rack component and an incomplete gear, wherein the rack component is arranged inside the casing; and the incomplete gear is located inside the rack component. The technical scheme is as follows: the rack component comprises an oval circle structure and an impact sliding block; racks are arranged in the length directions of the inner wall of the circle structure respectively; flanges are arranged on the outer wall of the circle structure; sliding grooves matched with the flanges of the rack component are formed in the inner wall of the casing; an impact mechanism is limited at the end of the impact sliding block inside the casing; the gear teeth of the incomplete gear are meshed with the rack component; and the number of the gear teeth of the incomplete gear is smaller than half of the total number of the teeth. An impact effect is achieved by using free inertial motion after demeshing of the rack component and the incomplete gear is achieved; and at the same time, motion inversion of the rack component is achieved. Compared with a traditional crank slider type reciprocating impact device, the gear and rack type reciprocating impact device is simple and compact in structure, occupies small space and can effectively avoid unbalance of motion in the direction vertical to the slider motion direction at the same time.

The invention relates to a multiscale weighted matching and sensor fusion for dynamic vision sensor (DVS) tracking. A dynamic vision sensor pose-estimation system includes a DVS, a transformation estimator, an inertial measurement unit (IMU) and a camera-pose estimator based on sensor fusion. The DVS detects DVS events and shapes frames based on a number of accumulated DVS events. The transformation estimator estimates a 3D transformation of the DVS camera based on an estimated depth and matches confidence-level values within a camera-projection model such that at least one of a plurality of DVS events detected during a first frame corresponds to a DVS event detected during a second subsequent frame. The IMU detects inertial movements of the DVS with respect to world coordinates between the first and second frames. The camera-pose estimator combines information from a change in a pose of the camera-projection model between the first frame and the second frame based on the estimated transformation and the detected inertial movements of the DVS.