Applications for Inertial Sensors 11 Sep 2013 Dr.Tech. Jussi - - PowerPoint PPT Presentation

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Applications for Inertial Sensors 11 Sep 2013 Dr.Tech. Jussi - - PowerPoint PPT Presentation

Applications for Inertial Sensors 11 Sep 2013 Dr.Tech. Jussi Collin Pervasive Computing jussi.collin _at_ tut.fi 1 Outline Research Group Research Projects Indoor Navigation Context Recognition using Smartphone Lab


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Applications for Inertial Sensors

11 Sep 2013 Dr.Tech. Jussi Collin Pervasive Computing jussi.collin _at_ tut.fi

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Outline

  • Research Group
  • Research Projects

– Indoor Navigation – Context Recognition using Smartphone

  • Lab Equipment
  • Recent Publications

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Our Group

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 Prof. Takala, Dr. Collin, Dr. Kirkko-Jaakkola, 5 PhD students  Sensor-based navigation research started in 1999  Deep understanding of performance of micro-electro-mechanical-

system (MEMS) sensor in various applications

 The group has invented novel ways to use the GPS and sensor data

in context-aware applications

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MEMS Motion Sensors

Accelerometers

 specific force, ’all forces

except gravitation’

Gyroscopes

 device body – inertial frame

+ Barometers, magnetometers

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Indoor Navigation: GPS

NLOS and low signal strength causes lots of problems in indoors and urban canyons 2003 2012

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Indoor Navigation: MEMS

  • Take advantage of physiological model of

walking: count steps with accelerometers

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Indoor Navigation: MEMS

  • Maps are needed to correct drift

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Using Building Plans and Self-Contained Sensors with GNSS Initialization for Indoor Navigation, VTC-1, 2013

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3D Indoor Navigation

  • 3D Map, 3D collision detection
  • Vehicle: speed + Smartphone: angular rates
  • Combine the information using BT+OBD

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Indoor 3D Navigation and Positioning of Vehicles in Multi-Storey Parking Garages, ICASSP 2013

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Context: Motion Mode Detection w ith Accelerometers

Context Awareness for GPS-Enabled Phones, Proceedings of ION ITM2010

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Sensor Placement Options

  • Steering Wheel & Pedals
  • Shoe
  • Wheel

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Energy Consumption Analysis for Green Routing - Data Collection from Electric Vehicles, 39th Annual Conference of the IEEE Industrial Electronics Society

An Innovative Shoe-mounted Pedestrian Navigation System, Proceedings of the European Navigation Conference GNSS 2003

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Lab Equipment

  • Novatel DGPS, 1-10 cm reference position with 20 Hz
  • Miniature wireless synchronized XSENS IMUs
  • Customized programmable IMUs with BT and GNSS rx
  • Ovenized IMU, barometers, measurement cart, etc..

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http://www.xsens.com/

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Recent Publications

Using Building Plans and Self-Contained Sensors with GNSS Initialization for Indoor Navigation, VTC-1, 2013 Indoor 3D Navigation and Positioning of Vehicles in Multi-Storey Parking Garages, ICASSP 2013 Improving TTFF by Two-Satellite GNSS Positioning, IEEE Transactions on Aerospace and Electronic Systems, Volume 48, Issue 4, pp. 3660-3670 Bias Prediction for MEMS Gyroscopes, IEEE Sensors Journal, Volume 12, Issue 6, pp. 2157-2163 Application of Particle Filters to a Map-Matching Algorithm, Gyroscopy and Navigation, Springer, Volume 2, Number 4, October 2011, pp. 285-292 Using a MEMS gyroscope to measure the Earth's rotation for gyrocompassing applications, Measurement Science and Technology, 23 025005 (8 pp), Institute of Physics Publishing

+ 6 patent applications 2011-2012 Video Channel: http://www.youtube.com/user/insnavgroup Publications: http://www.tkt.cs.tut.fi/research/nappo/publications.html

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