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US 9,286,782 B2Granted
System and method of biomechanical posture detection and feedback
AssigneeLumo BodyTech, Inc
InventorsAndrew Robert Chang, Monisha Perkash, C. Charles Wang, Andreas Martin Hauenstein
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Abstract
A system and method are described herein for a sensor device which biomechanically detects in real-time a user's movement state and posture and then provides real-time feedback to the user based on the user's real-time posture. The feedback is provided through immediate sensory feedback through the sensor device (e.g., a sound or vibration) as well as through an avatar within an associated application with which the sensor device communicates.
Claims13
A method of providing postural feedback comprising:
- receiving by a microprocessor at repeated intervals data from a tri-axial accelerometer, the microprocessor and the tri-axial accelerometer comprising a sensor device attached to a user, the sensor device further comprising memory, an actuator, and a power source;
- normalizing by the microprocessor the received accelerometer data;
- determining by the microprocessor a postural description of the user based on the normalized received accelerometer data, wherein determining the postural description of the user comprises:
- computing feature vectors for the normalized received accelerometer data;
- quantizing the feature vectors;
- assigning the feature vectors to Gaussian distributions;
- acquiring distribution histograms for the multiple movement states;
- and
- comparing the distribution histograms to determine in which movement state, of a set of multiple movement states, the user is currently in;
- and
- determining a current posture quality of the user indicating how well the user is balanced within the determined current movement state of the user;
- and
- triggering by the microprocessor the actuator to output sensory feedback based on the postural description of the user.
10 more elements
A method of providing postural feedback comprising:
- receiving by a microprocessor at repeated intervals data from a tri-axial accelerometer, the microprocessor and the tri-axial accelerometer comprising a sensor device attached to a user, the sensor device further comprising memory, an actuator, and a power source;
- normalizing by the microprocessor the received accelerometer data;
- determining by the microprocessor a postural description of the user based on the normalized received accelerometer data, wherein determining the postural description of the user comprises:
- determining in which movement state, of a set of multiple movement states, the user is currently in;
- and
- determining a current posture quality of the user indicating how well the user is balanced within the determined current movement state of the user;
- triggering by the microprocessor the actuator to output sensory feedback based on the postural description of the user;
- and
- transmitting across a wireless electronic communication connection to a computing device the postural description of the user and the normalized received accelerometer data.
6 more elements
A postural feedback apparatus comprising:
- a sensor device configured to be attached on a user, the sensor device comprising:
- a tri-axial accelerometer;
- an actuator;
- and
- a microprocessor configured to
- receive data from the tri-axial accelerometer about movement of the user;
- normalize the received accelerometer data;
- determine a postural description of the user based on the normalized received accelerometer data, wherein the postural description of the user comprises a current movement state of the user, of a set of multiple movement states, and a current posture quality of the user indicating how well the user is balanced within the current movement state of the user,
- wherein the microprocessor configured to determine the postural description of the user based on the normalized received accelerometer data comprises the microprocessor configured to:
- compute feature vectors for the normalized received accelerometer data;
- quantize the feature vectors;
- assign the feature vectors to Gaussian distributions;
- acquire estimated distribution histograms for the multiple movement states;
- and
- compare the distribution histograms to determine the current movement state from the multiple movement states;
- and
- trigger the actuator to output sensory feedback based on the postural description of the user.
14 more elements
A postural feedback apparatus comprising:
- a sensor device configured to be attached on a user, the sensor device comprising:
- a tri-axial accelerometer;
- an actuator;
- a wireless communication module;
- and
- a microprocessor configured to
- receive data from the tri-axial accelerometer about movement of the user;
- normalize the received accelerometer data;
- determine a postural description of the user based on the normalized received accelerometer data, wherein the postural description of the user comprises a current movement state of the user, of a set of multiple movement states, and a current posture quality of the user indicating how well the user is balanced within the current movement state of the user;
- and
- trigger the actuator to output sensory feedback based on the postural description of the user;
- and
- communicate with the wireless communication module to transmit the postural description of the user and the normalized received accelerometer data to a computing device.
10 more elements
Dependencies are inferred from the claim text.