33 results about "Balance assessment" patented technology

The OculoKinetic Device is used to test an individual to evaluate brain functions and to identify the presence of a traumatic brain injury or disease which manifests itself through abnormal ocular responses to stimuli by using the high-speed tracking of an individual's eye movements, pupil size and reactivity, eye lid position and blink parameters and optionally along with other ocular elements, i.e., eyeball pressure, temperature, blood flow, etc. The eye movement stimulus protocol uses a target that moves in any direction of the two-dimensional plane and may use a color display or geometric shapes. In addition, the stimuli can be used in conjunction with cognitive testing, balance assessment, and other non-eye tests.

A body movement assessment device for measuring a position of a center of gravity of a person at a plurality of time intervals relative to a recordable event, such as ball impact in a golf swing, and displaying those measurements for analysis. The body movement assessment device is useful in analyzing the tempo of body movement of a person, the consistency of body movement over two or more repetitions of a movement, the weight shift and postures of the person, and balance of the person. The body movement assessment device may include a visual recording device that enables a visual image of the person to be recorded and replayed together with other analytical information for increased analysis and understanding by the person. In at least one embodiment, the body movement assessment device may be configured to analyze a golf swing.

The OculoKinetic Device is used to test an individual to evaluate brain function including, but not limited to, identifying the presence of a traumatic brain injury or central nervous system disease which manifests itself through abnormal ocular responses to stimuli by using the high-speed tracking of an individual's eye movements (monocular or binocular, and either conjugate or disconjugate in horizontal, vertical, or torsional directions or combinations thereof), pupil size and reactivity, eyelid position, and blink parameters, and optionally along with other ocular elements, i.e., eyeball pressure, temperature, blood flow, etc. The eye movement stimulus protocol uses a target that moves in any direction of a two- or three-dimensional plane and may use a color display or geometric shapes. In addition, the stimuli can be used in conjunction with cognitive testing, balance assessment, and other non-eye tests.

The invention provides a human body balance assessment system and assessment method. The human body balance assessment system includes a man-machine interaction module, an action comparison module, a plantar pressure detection module, and a balance index quantification module. The human body balance assessment method includes: setting an application scene in the man-machine interaction module, allowing interactive actions between the human body and the application scene, using a somatosensory sensor to record three-dimensional coordinates of corresponding nodes of a human body skeleton model in real time, and using a plantar pressure sensor to measure the plantar pressure in real time; calculating the angles of human body joints, and determining if the action is standard or not; performing pretreatment on the plantar pressure value if so, and calculating the plantar pressure center; and assessing the balance ability of a human body according to the offset degree of the plantar pressure center. The somatosensory sensor and the plantar pressure sensor are combined; standard actions with different difficulties are designed for people groups with different balance disorders; the objectivity and the reliability of balance assessment can be improved; and the human body balance assessment system and assessment method has wide application value.

A human balance testing and training system may comprise: a mobile communication device comprising: (1) sensors; (2) a display unit; (3) an input unit; (4) an evaluation subsystem for evaluating balance capabilities of a human subject utilizing data collected when the human subject is performing one or more balance evaluation exercises, the data including data received from the sensors; (5) an expert subsystem for prescribing an exercise plan; and (6) a training subsystem for maintaining an exercise plan including one or more balance training exercises for the human subject; wherein the exercise plan is determined by at least one of a balance evaluation by the evaluation subsystem, performance data provided by the training subsystem, and input from a health professional; and wherein the sensors are configured to measure movement of the human subject during performance of one or more of an evaluation exercise and a training exercise.

The invention discloses lower limb rehabilitation equipment for weight reduction walking training and balance evaluation. The equipment comprises a training platform, a walking training device which is arranged on the training platform and is used for assisting the patient to do lower limb joint movement; a weight reduction supporting device which is arranged on the training platform and is used for carrying out weight reduction control and pelvic heeling control on a patient who is carrying out lower limb joint movement, a posture conversion device which is arranged at the top of the weight reduction supporting device and used for assisting a patient in achieving conversion between a sitting posture and a standing posture, a power output part which is arranged on the weight reduction supporting device and used for cooperating with the patient to conduct pelvis cooperative movement when the patient does lower limb movement, and a pelvis cooperative motion feedback device which is usedfor feeding back pelvis motion data so as to carry out balance evaluation. Pelvis movement data are obtained while a patient is assisted in conducting lower limb joint movement under weight reductioncontrol, and subsequent balance evaluation and pelvis balance movement autonomous adjustment are facilitated; and synchronous improvement of walking ability and balance ability of a patient is facilitated.

A muscular volume balance measuring apparatus that measures the balance of the muscular volume in a specific part is provided. At least two sets of current applying, devices for inserting a specific part of the body and applying current to living bodies, or a voltmeter, which measures voltage, are provided. A bioelectricity impedance measuring device which measures bioelectricity impedance of a measured region from applied current and measured voltage is also provided. A muscular volume calculating device which computes muscular volume from measured bioelectricity impedance is also provided. Further, balance of muscular volume of the inserted part is calculated from each set of the computed muscular volume. In addition, there is a feature of being able to expand and contract for the longitudinal width, which is the distance which inserts a specific part, and breadth, which is the distance between current applying device or between the voltmeter.

The invention relates to a large-scale wind power balance evaluation method, the method comprising: establishing a power grid joint optimal dispatching model; establishing a suitable wind power equivalent alternative scene dispatching model; determining the balance cost of large-scale wind power; analyzing the impact of wind power fluctuation characteristics on wind power balance Laws of cost impact. The technical solution provided by the invention establishes the basis and method for wind power value evaluation, provides basic theories and methods for wind power pricing, and realizes the balance of interests among the purchase, sale and transmission of wind power.

A surround audio dialog balance assessment method, apparatus, and system as disclosed herein is an audio monitor or is associated with an audio monitor. Preferred surround audio dialog balance assessment methods, apparatuses, and systems automate the process of monitoring audio signals through a broadcast chain.

A wind tunnel test balance assessment method based on acceleration signal energy mainly includes the steps that a model three-dimensional acceleration sensor, a framework three-dimensional acceleration sensor and a balance three-dimensional acceleration sensor are installed on the inner wall of the top end of an aircraft model, a framework model and a balance respectively; Fourier transformation is carried out on acceleration signals measured out by the three acceleration sensors in different directions, then a frequency spectrum signal is obtained, energy normalization characteristic values of six frequency bands within 0-300 Hz are calculated out, the difference value between the energy normalization characteristic values of the acceleration signals in the same direction of the model and the framework is calculated out, and the difference value between the energy normalization characteristic values of the acceleration signals in the same direction of the model and the balance is calculated out; when the two difference values between the energy normalization characteristic values in the different directions are within the specialized range, an assessment result determines that test data of the balance are credible, and when the two difference values are not within the specialized range, the assessment result determines that the test data of the balance are not credible. Consequently, model mechanical data measured out through the balance are accurate and reliable in a wind tunnel test, and more accurate and reliable test data are provided for aerospace aircrafts.

The invention discloses an intelligent electric energy meter-based substation electric energy balance monitoring method. The method comprises the following steps of: mounting intelligent electric energy meters on all the power grid devices for forming electric energy balance monitoring points; acquiring base codes of the intelligent electric energy meters and calculating an unbalance rate according to an intelligent electric energy meter metering result period; and carrying out out-of-limit judgement according to an artificially preset unbalance rate threshold value, and generating alarm records for the out-of-limit monitoring points. According to the method, accurate monitoring for substation electric energy balance is realized, the error is small, real-time operation states of substationdevices can be correctly reflected, data basis and technical support are provided for power grid companies to comprehensively carry out transmission network same-term line loss balance assessment, and the power grid balance control level is greatly improved.

The invention relates to the technical field of medical rehabilitation, in particular to a standing position balance assessment method and device, electronic equipment and a storage medium, and the method comprises the following steps: S10, obtaining the position of the gravity center origin of an assessed person standing on a pressure plate; s20, acquiring a movement track of the highest pressure point of the evaluated person during testing; s30, recording the moving track of the highest pressure point of the assessed person during testing to form a first closed graph T1 surrounding the origin of the gravity center; s40, calculating the initial area S1 of the closed graph; and S50, calculating the preliminary balance ability of the evaluated person according to a formula P0 = S1 * T1. According to the method, the position of the gravity center original point of the pressure plate where the evaluated person stands is used as the original point, and according to the formation time and area of the first closed graph which is formed by the movement track of the highest pressure point when the evaluated person is tested and surrounds the original point, the initial balance capacity of the evaluated person is obtained. Not only is the calculation complexity reduced, but also the assessed index has more reference value.

A wind tunnel test balance assessment method based on strain signal approximate entropies mainly includes the steps that a model three-dimensional strain gauge, a framework three-dimensional strain gauge and a balance three-dimensional strain gauge are installed on the inner wall of the top end of an aircraft model, a model framework and a balance respectively; Fourier transformation is carried out on strain signals measured out by the three strain gauges in different directions, then a frequency spectrum signal is obtained, approximate entropy characteristic values of six frequency bands within 0-300 Hz are calculated out, the difference value between the approximate entropy characteristic values of the strain signals in the same direction of the model and the framework is calculated out, and the difference value between the approximate entropy characteristic values of the strain signals in the same direction of the model and the balance is calculated out; when the two difference values between the approximate entropy characteristic values in the different directions are within the specialized range, an assessment result determines that test data of the balance are credible, and when the two difference values are not within the specialized range, the assessment result determines that the test data of the balance are not credible. Consequently, model mechanical data measured out through the balance are accurate and reliable in a wind tunnel test, and more accurate and reliable test data are provided for aerospace aircrafts.