Single/multiple axes six degrees of freedom (6 DOF) inertial motion capture system with initial orientation determination capability
First Claim
1. A motion capture system for measuring initial orientation and classic inertial measurement and change in spatial orientation (rho, theta, phi) and linear translation (x, y, z), comprising:
- an IMMCAP module providing motion data;
a digital processing unit in electrical connection with said IMMCAP module to receive said motion data; and
a means for analyzing said motion data and providing a feedback signal in response thereto.
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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.
130 Citations
20 Claims
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1. A motion capture system for measuring initial orientation and classic inertial measurement and change in spatial orientation (rho, theta, phi) and linear translation (x, y, z), comprising:
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an IMMCAP module providing motion data;
a digital processing unit in electrical connection with said IMMCAP module to receive said motion data; and
a means for analyzing said motion data and providing a feedback signal in response thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An IMMCAP module, comprising:
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a tri-axial accelerometer a tri-axial magnetometer - View Dependent Claims (11, 12, 13, 14)
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15. A method for measuring motion using an IMMCAP module, comprising the steps of:
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initializing said IMMCAP module;
generating motion data in response to motion of said IMMCAP module;
analyzing said motion data for predefined characteristics; and
generating a feedback signal in response to said analysis. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification