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  1. 1. <ul><li>U. Walder, T. Bernoulli, T. Wießflecker, </li></ul><ul><li>Institute for Building Informatics </li></ul><ul><li>Graz University of Technology </li></ul>An Indoor Navigation System for Improved Action Force Command and Disaster Management International Disaster and Risk Conference Davos 2010
  2. 2. <ul><li>Content </li></ul><ul><li>Information Needs in Disaster Management (DM) </li></ul><ul><li>TU Graz Computer Aided Disaster Management System </li></ul><ul><ul><li>Indoor positioning </li></ul></ul><ul><ul><li>Context-adaptive building model (BIM), Mapping </li></ul></ul><ul><ul><li>User interaction (BIC) </li></ul></ul><ul><ul><li>System architecture und communication </li></ul></ul><ul><li>Conclusions </li></ul>
  3. 3. <ul><li>Why do we need Indoor Navigation and Positioning in DM? </li></ul><ul><li>Disaster Management </li></ul><ul><li>Real-time information about the situation of enclosed people, affected areas and the deployed teams is needed! </li></ul><ul><li>Urban Development </li></ul><ul><li>Higher density ► large roofed areas ► underground infrastructure </li></ul><ul><li>High vulnerability against fire, flood and terror </li></ul>Motivation
  4. 4. <ul><li>Traditional Indoor Positioning Systems </li></ul><ul><li>Based on preinstalled infrastructure </li></ul><ul><ul><li>HS-GNSS (GPS) </li></ul></ul><ul><ul><li>Wireless LAN </li></ul></ul><ul><ul><li>Ultra Wide Band </li></ul></ul><ul><ul><li>RFID </li></ul></ul><ul><ul><li>Cameras </li></ul></ul><ul><li>Many disadvantages: </li></ul><ul><li>Either not possible (GPS), </li></ul><ul><li>too expensive, </li></ul><ul><li>too time-consuming or </li></ul><ul><li>not accurate enough </li></ul>State of the Art Better solution with Dead Reckoning System
  5. 5. <ul><li>TU Graz IPS – what is it? </li></ul><ul><li>Positioning Equipment for Deployment Forces </li></ul><ul><li>Hardware inertial measurement unit </li></ul><ul><li>lightweight wearable computer </li></ul><ul><li>head mounted display </li></ul><ul><li>Software motion pattern analysis </li></ul><ul><li>intelligent sensor-map interaction </li></ul><ul><li> hands free, intuitive user interaction </li></ul><ul><li>IPS is the core of a Disaster Management System </li></ul><ul><li>Command Station </li></ul><ul><li>Hardware computer / notebook </li></ul><ul><li>Network WLAN or UMTS </li></ul><ul><li>Software operation command and control system </li></ul>State of the Art
  6. 6. <ul><li>Inertialsystems (Dead Reckoning Systems) </li></ul><ul><li>Positioning by integrating accelerations and velocities with permanent movement pattern analysis </li></ul><ul><li>Many problems have to be solved: </li></ul><ul><ul><li>Noise </li></ul></ul><ul><ul><li>Drift stable average </li></ul></ul><ul><ul><li>Temperature </li></ul></ul><ul><ul><li>Calibration </li></ul></ul><ul><ul><li>Accuracy </li></ul></ul><ul><ul><li>Zero Velocity Updates for different movement patterns </li></ul></ul>IPS
  7. 7. <ul><li>Inertial systems: experiences </li></ul><ul><li>Accuracy too bad for stand alone solution </li></ul><ul><li>Improvement by periodic re-positioning: </li></ul><ul><ul><li>Re-positioning relative to known boundaries and reference objects </li></ul></ul><ul><ul><li>User interaction to verify automatic re-positioning or to define new start point </li></ul></ul><ul><li>Problems to solve: </li></ul><ul><ul><li>Mapping with floor plans </li></ul></ul><ul><ul><li>Floor plans have to be enriched with logic information </li></ul></ul><ul><ul><li>User interaction under extreme conditions (noise, smoke, heavy equipment, manual work, etc.). </li></ul></ul>IPS
  8. 8. <ul><li>Context-sensitive BIM interaction </li></ul><ul><li>Graphical data are available for all major buildings (evacuation planning) in standard formats </li></ul><ul><li>Important information in case of disasters have been defined and are integrated in the building model data </li></ul>Building Information Model (BIM)
  9. 9. Typical Results
  10. 10. Typical Results
  11. 11. Typical Results
  12. 12. Typical Results
  13. 13. <ul><li>Position control </li></ul><ul><li>Catching functions </li></ul><ul><ul><li>Doors and other transitions </li></ul></ul><ul><ul><li>Stairs </li></ul></ul><ul><li>Reflecting functions </li></ul><ul><ul><li>Walls, doors </li></ul></ul><ul><li>Correction functions </li></ul><ul><ul><li>Re-positioning relative to objects </li></ul></ul><ul><li>Reloading functions </li></ul><ul><ul><li>Floor plans </li></ul></ul><ul><ul><li>Neighbor floors </li></ul></ul>Automatic re-positioning re-positioning by user interaction
  14. 14. <ul><li>System architecture </li></ul>
  15. 15. <ul><li>Peer-to-Peer as key technology </li></ul><ul><li>The use of Java TM implemented Peer-to-Peer (p2p) mechanisms allows for a flexible integration of different hardware and systems </li></ul><ul><li>The network organises itself: </li></ul><ul><ul><li>High flexibility in changing network configurations, in case of interrupts and device damages </li></ul></ul><ul><ul><li>Optimisation during operation is possible </li></ul></ul>Communication
  16. 16. <ul><li>Range of Application </li></ul><ul><li>First Responders </li></ul><ul><li>Military und Special Forces </li></ul><ul><li>Civil applications </li></ul><ul><ul><li>Pedestrian navigation in public buildings, airports, hospitals, shopping centres, railway and subway stations, , museums, etc. </li></ul></ul><ul><ul><li>Navigation for handicapped people </li></ul></ul>
  17. 17. <ul><li>TU Graz Indoor Positioning System </li></ul><ul><li>System benefits </li></ul><ul><li>No installations in buildings necessary </li></ul><ul><li>High positioning accuracy (< 2 m) </li></ul><ul><li>Small and handy system (foot or hip mounted) </li></ul><ul><li>Maps can easily be derived from floor plans </li></ul><ul><li>Autonomous operation in case of transmission interrupts </li></ul><ul><li>Great potential for civil applications </li></ul>Conclusions
  18. 18. Acknowledgements armasuisse
  19. 19. <ul><li>Thank you for your attention! </li></ul>