MOTION SENSING APPARATUS, SYSTEMS AND TECHNIQUES
First Claim
1. A motion sensing system, comprising:
- one or more motion sensors, each motion senor operable to measure data on motion and orientation of the motion sensor and comprising (1) a microprocessor to process and transform measured data into digital sensor data and (2) a sensor communication interface to output the digital sensor data; and
a controller comprising (1) a controller communication interface in communication with the one or more motion sensors via the sensor communication interface and (2) a controller memory to receive the digital sensor data from the one or more motion sensors, wherein the controller processes, in real time as the digital sensor data is being received, the received digital sensor data to produce a measured motion profile of the one or more motion sensors and to compare the measured motion profile to a reference motion profile for the one or more motion sensors that is stored in the controller microprocessor, and wherein the controller produces an indicator signal to indicate a deviation of the measured motion profile from the reference motion profile.
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Accused Products
Abstract
A highly miniaturized electronic data acquisition system includes MEMS sensors that can be embedded onto moving device without affecting the static/dynamic motion characteristics of the device. The basic inertial magnetic motion capture (IMMCAP) module consists of a 3D printed circuit board having MEMS sensors configured to provide a tri-axial accelerometer; a tri-axial gyroscope, and a tri-axial magnetometer all in communication with analog to digital converters to convert the analog motion data to digital data for determining classic inertial measurement and change in spatial orientation (rho, theta, phi) and linear translation (x, y, z) relative to a fixed external coordinate system as well as the initial spatial orientation relative to the know relationship of the earth magnetic and gravitational fields. The data stream from the IMMCAP modules will allow the reconstruction of the time series of the 6 degrees of freedom for each rigid axis associated with each independent IMMCAP module.
152 Citations
16 Claims
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1. A motion sensing system, comprising:
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one or more motion sensors, each motion senor operable to measure data on motion and orientation of the motion sensor and comprising (1) a microprocessor to process and transform measured data into digital sensor data and (2) a sensor communication interface to output the digital sensor data; and
a controller comprising (1) a controller communication interface in communication with the one or more motion sensors via the sensor communication interface and (2) a controller memory to receive the digital sensor data from the one or more motion sensors, wherein the controller processes, in real time as the digital sensor data is being received, the received digital sensor data to produce a measured motion profile of the one or more motion sensors and to compare the measured motion profile to a reference motion profile for the one or more motion sensors that is stored in the controller microprocessor, and wherein the controller produces an indicator signal to indicate a deviation of the measured motion profile from the reference motion profile. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 16)
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10. A motion sensing system, comprising:
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at least one motion senor operable to measure data on motion and orientation of the motion sensor and comprising a tri-axial magnetometer to measure a local magnetic field vector at each motion sensor; and
a mechanism to process measured data on the local magnetic field vector from the tri-axial magnetometer to measure a differential rate of rotation of the motion sensor. - View Dependent Claims (11, 12)
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13. A motion sensing system, comprising:
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one or more motion sensors, each motion senor comprising (1) a tri-axial accelerometer, (2) a tri-axial magnetometer, (3) a microprocessor to process and transform measured data from each motion sensor, including data from the tri-axial accelerometer and the tri-axial magnetometer, into digital sensor data, (4) a sensor RF communication interface to wirelessly output the digital sensor data; and
a controller comprising (1) a controller RF communication interface in wireless communication with the one or more motion sensors via the sensor RF communication interface and (2) a controller memory to receive the digital sensor data from the one or more motion sensors, wherein the controller processes measured data on a local magnetic field from the tri-axial magnetometer to measure a differential rate of rotation of the motion sensor, and processes the received digital sensor data to produce a measured motion profile of the one or more motion sensors. - View Dependent Claims (14, 15)
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Specification