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Compact Inertial Measurement Unit

Compact Inertial Measurement Unit. Full sensor set for 3D motion detection in compact wireless package. Implementation 3(+1) Accelerometers 3 Gyroscopes 12-bit ADC/Microcontroller 19.2 kBps link (wired & wireless) Low-power (75mW)

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Compact Inertial Measurement Unit

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  1. Compact Inertial Measurement Unit • Full sensor set for 3D motion detection in compact wireless package. • Implementation • 3(+1) Accelerometers • 3 Gyroscopes • 12-bit ADC/Microcontroller • 19.2 kBps link (wired & wireless) • Low-power (75mW) • Originally used for human gesture recognition (next slide) • Built at MIT Media Lab by Ari Y. Benbasat in 2000

  2. AYB Master’s Thesis Work • Create analysis and interpretation framework for inertial devices: • Analysis: Activity detection • Gesture Recognition: Parameterized atomic gestures • Output Scripting: Links gestures to outputs • Benefits: • Allows direct, in situ sensing of quantities of interest • Low complexity of algorithms allows for stand-alone devices Project Organization

  3. Sample Gesture Analysis Perform Gestures and Collect Data Find Areas of Activity y x (no rotation) Run Recognition Recombine Atomic Output 2 Peaks = + = = 3 Peaks

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