159 results about "Movement measurement" patented technology

Relative positions of a plurality of mobiles communication devices, which form a wirelessly networked group of mobiles, are determined at each of the mobiles of the group without the need for external positioning information obtained from a location remote from the actual locations of the mobiles of the group. The relative positions are determined at the mobiles of the group based on mobile-to-mobile range measurements, distance and direction of movement measurements and altitude measurements made at the respective mobiles.

A system for measuring the position of transponders for testing and training a user to manipulate the position of the transponders while being guided by interactive and sensory feedback through a bidirectional communication link to a processing system for the purpose of functional movement assessment for exercise and physical rehabilitation.

A device for analyzing and monitoring exercise done by a user comprises at least a portable support (2), electric power supply means, sensor means (3) for measuring the exercise done by the user during at least one predetermined period of time, expressed at least in the form of at least one non-dimensional parameter, at least one memory (4) designed to archive data relating to the measurement of exercise done by the user, display means (5) for displaying the measurement of the exercise done by the user and the data archived in the memory, data communication means (6a), (6b) and at least one processing unit (7a), (7b).

A multi-mode athleticism movement measurement system includes an athlete-borne acceleration sensor and an athleticism processing device to determine athleticism information based upon one or more timing measurements from the athlete-borne acceleration sensor, the athleticism information corresponding to any of multiple athleticism measurement modes available on athleticism processing device and selectable by a user. A data link between the athlete-borne acceleration sensor and the athleticism rating processing device transmits the one or more timing measurements from the athlete-borne acceleration sensor to the athleticism rating processing device.

The present invention relates to systems and methods for helping subjects improve safety and efficiency of their movements; particularly subjects who have suffered an injury or suffer from a movement or other such disorder. More particularly, the present invention relates to such a system and method for monitoring a subject's movement to detect or predict unsafe, undesirable, or impaired movements, or symptoms of movement disorders, and also a system for providing possible treatment methods for such conditions. The present invention further relates to a method and system of providing cues or stimuli to the subject when such unsafe or undesirable movements, instabilities or symptoms are detected or predicted. Most particularly, the present invention relates to a subject-customized and adaptive movement recovery system, and method of providing therapy and training to improve functional motor recovery and safety of movement of a subject suffering from an injury or from movement disorder(s).

A navigation system for tracking the position of an object includes a GPS receiver responsive to GPS signals for periodically providing navigation state measurement updates to a navigation processor. The system also includes a dead-reckoning sensor responsive to movement of the object for providing movement measurements to the navigation processor. The navigation processor determines object navigation states using the navigation state measurement updates and propagates the object navigation states between measurement updates using the movement measurements.

A method for calibrating the position and orientation of a 6-DOF sensor system mounted on a multi-segmented structure, such as the human body, is provided. The method includes a stage for mounting the sensors on the body, a stage for acquiring the 6-DOF kinematics from those sensors, a calibration stage whereby the prior stages are used to determining the sensor-to-segment transformations that are most physiologically optimal during relative skeletal motions, and a stage that to periodically monitor and correct for sensor slippage.

A system for monitoring a joint of a patient includes multiple sensors to be disposed near a joint and to measure or observe actions or physical quantities associated with the joint; and at least one communications module coupled to the sensors to receive data from the sensors and to transmit sensor information to an external device. The system also includes a patient device and clinician device which can be used to, for example, monitor and display information obtained from the sensors, determine range of motion measurements from the sensor data, show progress in physical therapy, take a photograph or video of the site on the patient, obtain a pain score, and include friends for providing encouragement during physical therapy.

A method and apparatus for measuring breathing movements and determining breathing patterns, by measuring the simultaneous movement of a plurality of points of a human subject, such that a breathing pattern may be determined based on data obtained in a single acquisition. The method provides a symmetry breathing pattern parameter.

A wearable apparatus for measuring position and action of an arm includes: a main frame worn on an upper body of a user; and an arm motion-measuring unit connected to a side of the main frame, having a plurality of joints, and worn on an arm of a user, in which at least any one of the joints of the arm motion-measuring unit has a straight-motional degree of freedom. Accordingly, an instructor can conveniently move both arms in the apparatus, can precisely instruct a two-arm robot in motions of the instructor's arms, can reduce learning time of the robot, and can make the robot quickly and accurately learn the motions.

The invention relates to the field of agriculture and forestry plant protection technology, and more particularly relates to a device for measuring the droplet charge-mass ratio of electrostatic spraying droplets. The device is characterized by comprising a faraday cylinder (1), a coulometer (2), a water outlet pipe (3), a liquid collecting barrel (4) and a computer (5). The faraday cylinder (1) and the coulometer (2) are connected. The coulometer (2) and the computer (5) are connected. The water outlet pipe (3) is communicated with the bottom of the faraday cylinder (1). The bottom of the liquid collecting barrel (4) is provided with a weight sensor (17). The weight sensor (17) and the coulometer (2) are connected. The liquid collecting barrel (4) is used for collecting the liquid that flows out of the water outlet pipe (3). Compared with the prior art, the technical effects of small charge loss between sealed inner and outer cylinders, easy operation, good measurement real-time performance, high accuracy, high cost performance, convenient movement measurement and the like are realized.

A feedforward-movement training apparatus, which is capable of restoring functions of fast and accurate movements in a relaxed state by training feedforward-movements includes a movement working portion where a patient causes a body part to do, within a time limit, a feedforward-movement between a start point and an end point arranged in advance, a movement measuring portion for measuring the feedforward-movement of the patient, and a movement feedback portion for giving the result of the measurement made by the movement measuring portion to the patient. A feedforward-movement evaluation system objectively and easily evaluates the degree of skillfulness of the patient's feedforward-movements in the aforementioned feedforward-movement training apparatus and thus restores functions to execute fast and accurate movement in a relaxed state more effectively.

An apparatus to facilitate image stabilization with adaptive shutter control is described. An embodiment of the apparatus includes an image sensor, a movement detector, and a shutter controller. The movement detector is coupled to the image sensor. The shutter controller is coupled to the movement detector. The image sensor is configured to obtain image data. The movement detector is configured to obtain movement measurement information during a shutter period having a predetermined duration. The shutter controller is configured to adjust the shutter period of a shutter based on the movement measurement information. The shutter controls the time the image sensor is responsive to light incident on the image sensor. Embodiments of the apparatus provide a smaller and less costly implementation for image stabilization.

A method of determining vehicle acceleration information includes obtaining a plurality of movement measurements from a mobile device in a vehicle, and determining a plurality of gravity vectors, each of the plurality of gravity vectors associated with at least two of the plurality of movement measurements. The method further includes removing a movement measurement from the plurality of movement measurements using the plurality of gravity vectors to provide a set of remaining movement measurements. An acceleration measurement for the vehicle is determined using the remaining movement measurements.

The invention discloses a laser speckle testing system used for measuring the movement velocity of nano-particles in nano-fluid. The system is characterized in that the irradiation mode of a light source and the receiving mode of a recording device are improved according to the optical character of the nano-particles. An extender lens system is used for two-dimensional expansion of laser beam to form the flowing nano-particles that are irradiated by a surface light source; the recording device is arranged on the light path which positively faces to the incident light direction at the other side of a transparent pipe of the tested nano-fluid according to the rayleigh scattering characteristic, so that the speckle image of the nano-particles is recorded clearly; the laser speckle testing system of the invention is not only used for measuring the movement of the nano-particles in the nano-fluid, but also applicable to the movement measurement of micron particles; the system has simple structure and wide range of usage, and can be widely applicable to speckle measurement of the movement velocity of fluid.

The invention discloses a large-size workpiece movement measurement robot system and method. The system and method are based on a target tracking system, and depends on a mobile device, and a visual measurement system and a three-dimensional target which are carried by a robot, and a global control means is created, thereby enabling the target tracking system, the visual measurement system and thethree-dimensional target to be combined, removing the tedious step of pasting a target in a conventional visual measurement system, avoiding an error caused by the target matching and the impact on ameasurement error from the robot, and achieving the automation of high-precision measurement. The coordinate system of the target tracking system is the world coordinate system, and the point cloud data measured by the visual measurement system is unified in the world coordinate system. The calibration precision plays a key role in a final measurement result. Before measurement, the motion planning of the large-size workpiece movement measurement system and the calibration of a measurement system need to be completed, so as to achieve the automatic measurement of the large-size workpiece movement measurement robot system.

An exercise assistance system labels sensor signals received from a movement measurement device to identify repetitions within the sensor signals. The movement measurement device can transmit motion data describing the user's movement to the exercise assistance system, and includes the sensor signals generated by one or more sensors in the movement measurement device. The exercise assistance system generates a combination signal from the received sensor signals and passes the combination signal through a low pass filter to generate a labeling signal. The exercise assistance system can generate three types of labels for the labeling signal identifying different parts of repetitions. The exercise assistance system labels the sensor signals using the generated labels and can identify repetitions in the labeled sensor signals using a classification model.

A method and system for identifying a moment of inertia (MOI) of a work piece includes coupling the work piece to a manipulator assembly such as a 6-axis robotic arm or 3-axis gimbal. The manipulator assembly includes a force / torque sensor and a motion feedback sensor. The manipulator assembly moves the work piece with three-dimensional motion. Force, torque and movement measurements are made as the work piece moves. The MOI is identified according to the force and torque measurements and rotational accelerations derived from the measured movement. The measurements may be used to identify the products of inertia (POI) and center of mass of the work piece.

An avionics system and process for detecting pneumatic blockages having an air pressure measurement system including a first sensor positioned in association with the air inlet of an air probe component. The air pressure measurement system having a second sensor positioned in association with the air inlet for detecting air pressure in which the second sensor has a frequency response higher than that of the first sensor. An air data computer is coupled to each of the first and second sensors being configured and operable to calculate a first aircraft movement measurement using detected air pressure from the first sensor and is further operative to determine if the first sensor is faulty or if the air inlet is blocked in dependence upon the frequency content and amplitude of the output from the second sensor.

The invention relates to a vanishing point based method for automatically extracting and classifying ground movement measurement image line segments. The method comprises the following steps of: firstly, analyzing the attribute of ground object space parallel characteristic lines of a target and calculating vanishing points of an image of the target on the basis of image sequences acquired by ground movement measurement; secondly, extracting characteristic line segments based on an image edge according to the Hough transform of a polar coordinate parameter area extremum and the continuous change of image greyscale; and then, classifying the extracted plane line segments by using vanishing points; and finally integrating the classified line segments according to a total least square method and conditions of the plane adjacency and overlapping degree of the line segments so as to extract image characteristic line segments which correspond to multiple ground object space parallel lines. The invention can improve the indoor processing capability of a movement measurement system and promote the research on automatic recognition, mapping, three-dimensional reconstruction and the like of multiple ground objects (such as buildings, roads and the like).

The present invention relates to a video measurement method for large-scale wind power blade movement tracking. The method comprises the steps of: spraying a random speckle patterns and pasting orienteering reflect light mark points; dividing the surface of the blade into a plurality of measurement areas, wherein different measurement areas put corresponding camera sets; performing camera calibration; controlling each camera to simultaneously collect mages when the large-scale wind power blade is rotated; after rotation correction according to the collected speckle patterns, performing analysis of each image collected by each camera, calculating center coordinates of the reflect light mark points, and performing multi-pole matching of related points in each image collected by each camera;performing three-dimensional reconstruction according to the collected images and results of multi-pole matching, obtaining three-dimensional coordinates of each point on the large-scale wind power blade, analyzing the change conditions of the orienteering reflect light mark points on the large-scale wind power blade in the deformation process, and obtaining the deformation of surface key points of the large-scale wind power blade. The video measurement method for large-scale wind power blade movement tracking can accurately obtain the space coordinates of any position of the feature surface in each state to achieve the purposes of tracking and movement measurement.

The invention provides a dual-freedom degree tracking cloud deck with an inertial orientation function. The cloud deck comprises a rear cover plate, an azimuth shaft angle sensor, a pitch shaft component, a pitch shaft hand wheel, a kickoff locking mechanism, an external interface, an indicating lamp, a front panel, a dynamic tuning gyroscope, an upper bracket, a signal processing circuit, a pitch shaft angle sensor, an azimuth shaft component, a metal flange water level, an azimuth shaft hand wheel and a structure bracket. The cloud deck is compact in structure and light in weight, has an inertial north-seeking and a tracking angle measuring function, belongs to a manual control load movement measurement platform, can drive a load to rotate in two freedom degrees, i.e. azimuth and pitch, can measure the angle rotating in the manner of being relative to a geographic coordinate system, and has a data output function. Azimuth rotation and pitch rotation can be slightly adjusted by the hand wheels; a self-locking function is realized; a rotation process is stable; in the aspect of azimuth, the cloud deck has a free revolution function and a hand wheel slight adjustment switching function.

The invention discloses an apparatus for evaluating the tongue strength of a subject during a sucking event. The apparatus includes an insert positioned within a nipple element to provide an output in response to deformation of the nipple element during a sucking event. The output is at least one of resistive force exerted against the subject's tongue and movement measurement of deformation force exerted on the nipple element during the sucking event. The apparatus is configurable to evaluate nutritive sucking (NS) or non-nutritive sucking (NNS) capabilities of the subject. The insert may be a sensing device, a compliance element, an intermediate device or a combination of these. A coupling device is configured to position the insert relative to the nipple element and / or to receive output from the insert. A method is further disclosed, which includes evaluating tongue strength of a subject during NS or NNS and using inserts providing increasing levels of resistive force to exercise the subject's tongue.

A motion detection system, and more particularly, a non-contact, movement-measurement and position-tracking device, and a method of applying the device on long, non-textured or regularly textured metal objects at an elevated temperature are invented. The invention takes advantage of the oxidation marks, also known as scale, on the surface of the metal object to track the motion. The oxidation marks are typically random and irregular, providing a means for pattern tracking using imaging technologies.

A positioning device comprising: a movement measurement unit that measures relative position variation; a positioning unit that enables measurement of positional information; and a control unit that starts continuous measurement of position variation by the movement measurement unit and measurement of positional information by the positioning unit at each predetermined timing for at least a specified position, and determines a position determination spot based on positional information of any of the at least two positions in a case that the difference between the amount of position variation and the amount of relative position variation is determined by the determining unit to be within a predetermined range, and calculates positional information of the specified position based on positional information of the position determination spot and information of position variation that has been continuously measured by the movement measurement unit.

Methods, systems, and computer-readable media for generating a projected image are provided. Movement measurements are received from an accelerometer within a projection device. A determination is made as to whether the movement measurements indicate movement of the projection device. Upon determining that the movement measurements indicate movement of the projection device, a movement correction factor is determined based on the movement measurements to compensate for the movement of the projection device. The projection device is caused to generate a projected image according to the movement correction factor.

A method and apparatus for measuring breathing movements and determining breathing patterns, by measuring the simultaneous movement of a plurality of points of a human subject, such that a breathing pattern may be determined based on data obtained in a single acquisition. The method provides a symmetry breathing pattern parameter.