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OSMIUM MIMU22B9/22B9P/22B9PX ShoeMounted Sensors (IMUs)
Highlighting Features Ø Ø
4 nine-axis IMU array (Accelero+Gyro+Magnetometers*) Accelerometer: Axis Bias Stability Velocity RandomWalk 0.021 mg X 0.042(m/s/Öhr) 0.015 mg Y 0.042(m/s/Öhr) 0.030 mg Z 0.060(m/s/Öhr)
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Gyroscope: Axis Bias Stability 0.040(o/hr) X 0.055(o/hr) Y 0.044(o/hr) Z
Angle Random Walk 0.346(o/Öhr) 0.371(o/Öhr) 0.387(o/Öhr)
Osmium MIMU22B9 is an IMU-array based Precision Wearable Motion Sensor Platform (IMU) - The Osmium MIMU22B9 - comes pre-loaded with a foot-mounted pedestrian navigation utility. Being one of the thinnest IMU in the market, it is suitable for applications with space constraints, e.g. wearable motion sensing. It can also be used as normal wireless IMU, thanks to the on-board Bluetooth. Presence of on-board floating point processing capability, along with four IMUs array, makes sensor fusion and motion processing possible within the module itself, which in turn results in very accurate motion sensing.
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IMUs' placement and orientation to minimize systematic errors Bluetooth v3.0 and USB 2.0 data interfaces Floating point Atmel controller with 512 Kb internal flash Pressure Sensor *, 8 Mb DataFlash memory* Power with Li-ion battery, USB; Battery charging with USB ON-OFF switch, LED indicators; Max current: 100mA USB (Bootloader) programmable; JTAG programmable Single board; No protruding connector; Low profile Rechargeable battery; Battery backup: · MIMU22B9: N.A · MIMU22B9P: One and a half hour · MIMU22B9PX: Five hours Ø Dimensions: · MIMU22B9: : 20.9 x 22.7 x 5.5 mm; Weight - 3.5 g · MIMU22BTPX : 42.2 x 27.9 x17.0 mm; Weight - 20g · MIMU22BTP : 31.0 x 23.5 x 13.5 mm; Weight - 12 g *As of now, software support for magnetometer, Data Flash memory and pressure sensor is not available
Osmium MIMU22B9P/MIMU22B9PX simplifies Pedestrian Dead Reckoning (PDR) by transmitting step movement information over Bluetooth, when attached to foot of a walking person. Thus any development around it, does not require solving complex navigational equations. It's sensor array approach, coupled with internal motion processing and simplified data interface, results in improved tracking accuracy, relaxes constraints on the integration platform and significantly reduces time-to-market.
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S/w I2C buses to access IMUs simultaneously Sensor fusion and calibration compensation ZUPT based inertial navigation Command based data interface Access to intermediate variables Easy to modify, highly modular s/w design
Value Proposition
Highly accurate
API Support
Easy Customization
Swift Integration
Affordable
Block Diagram shows the interfacing of the microcontroller IMUs, barometer, USB, BLE and Power Management Unit.
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.
Pedestrian Dead Reckoning (PDR) is simplified with the foot-mounted MIMU22B9. The device starts transmitting location data at every step, on receiving start command from the application platform. Based on the data, complete path is built in the application platform DaRe.
Osmium MIMU22B9P/ Sample Results of PDR Using MIMU22B9 / MIMU22B9P MIMU22B9PX are used as a shoe mounted indoor tracking device. The tracking performance of MIMU22B9P / MIMU22B9PX depends on mounting procedure. Elastic shoe mount gives superior performance compared to other mounting schemes.
Target Applications:
Gait Analysis
Rescue Operation
Contact Details: GT SILICON PVT LTD Kanpur, India, Cell : +91 700 741 0690 Mail:
[email protected] URL: www.inertialelements.com © 2017 GT Silicon Pvt Ltd
Endless IoT Applications
Autonomous Robotics
Urban Mapping & Survey
Warehouse Management
