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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
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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