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OSMIUM MIMU4492/4X9C
A Massive Multi-IMU (MIMU) Array
Osmium MIMU4492 - contains 32 IMUs, with two mirrored 4x4
square IMU arrays. MIMU4492 is an ideal platform to implement very
high precision motion sensing by using Sensor Fusion and Array Signal
Processing methods. It is an easy to use and highly configurable sensor-
array platform, serves the needs for niche applications, such as gait
analysis, 3D motion capture, Structure from Motion (SfM) etc. It comes
pre-programmed as shoe-mounted pedestrian dead reckoning (PDR)
sensor.
Osmium MIMU4X9C - When used with extension board
BMBT4444, is capable of storing data in micro SD card, operating
on battery power and most importantly, wireless communication.
This is in addition to all the features of MIMU4492. Thus it becomes
a battery operable wireless massive IMU-array platform. A great
platform for your Sensor Fusion and Array Signal Processing
implementation needs!
Supporting Software
Ø Framework for sensors' i/f and data comm.Ø ZUPT based inertial navigation
Ø Command based data communication protocol
Ø Access to meaningful intermediate variables
Ø Easy to modify, highly modular s/w design
Ø Open source communication scripts
Highlighting FeaturesØ A Massive 32 IMUs array: Two 4x4 IMU arraysØ Array of nine-axis IMU (Gyro+Accelero+Magnetometer*)Ø Accelerometer:
Ø Gyroscope:
Ø IMUs' placement and orientation to minimize systematic
errors
Ø Parallel communication with IMUs using 32 parallel s/w
I2C buses
Ø Sensor fusion and calibration compensation on-board
Ø Floating pt. Atmel controller with 512 Kb internal flash
Ø USB 2.0 data interface, All sensors accessible through USB
Ø JTAG programmable (needs dedicated JTAG cable)
Ø Power with USB; LED indicators; 49.3mm x 26.6mm
Ø MIMU4X9C = MIMU4492 + 10-pins Connector
Ø Access to UART and SPI IOs. (for MIMU4X9C only)
Ø Access to power ports to enable battery operability. (for
MIMU4X9C only)
*As of now, software support for magnetometer is not available.
Axis Bias Stability Velocity RandomWalkX 0.010 mg 0.014(m/s/Öhr)
Y 0.006 mg 0.014(m/s/Öhr)
Z 0.012 mg 0.022(m/s/Öhr)
Axis Bias Stability Angle Random Walk X o 0.023( /hr) o 0.257( /Öhr)
Y o 0.019( /hr) o 0.300( /Öhr)
Z o 0.021( /hr) o 0.219( /Öhr)
Value Proposition
Massive IMU Array API Support Customization Service Swift Integration
Affordable Cost
Target Applications
IoT Applications
Sensors Array Fusion
VR Applications
Gait Analysis
3D Motion Capture
Calibration: A simple calibration procedure which compensates
for the inter IMU misalignment. We have used a novel mechanical
rotation-rig-free calibration procedure for all MIMU devices. A
simple 3D printable 20-faced polyhedron (Icosahedron) can do this
job
The BMBT4444 serves the purpose of extension board for
MIMU4X9C. When used with MIMU4X9C, it adds wireless
communication interface (Bluetooth), data storage (Micro SD Card)
and battery (Li-ion rechargeable) as another powering option to the
inertial sensor array module.
Block Diagram shows the interfacing of the microcontroller and
massive 32 IMU array, USB and Power Management Unit.
Allan Variance Analysis shows a much better noise performance
than any single IMU system. The noise reduces by a factor of n,
where n is the number of IMUs.
Structure from Motion
GT SILICON PVT LTD
Kanpur, India,
Cell : +91 700 741 0690
Mail: [email protected]
URL: www.inertialelements.com
© 2017 GT Silicon Pvt Ltd
