Compact inertial measurement unit
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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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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)

  • Originally used for human gesture recognition (next slide)

  • Built at MIT Media Lab by Ari Y. Benbasat in 2000


Ayb master s thesis work

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


Sample gesture analysis

Sample Gesture Analysis

Perform Gestures and Collect Data

Find Areas of Activity

y

x

(no rotation)

Run Recognition

Recombine Atomic Output

2 Peaks

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+

=

=

3 Peaks


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