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07 11 12
 

07 11 12

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    07 11 12 07 11 12 Presentation Transcript

    • RFID Information Grid and Wearable Computing Solution to the Problem of Wayfinding for the Blind User in a Campus Environment
    • Reference
      • Scooter Willis and Sumi Helal
      • Computer & Information Science & Engineering Department
      • University of Florida, Gainesville, FL 32611, USA
    • Outline
      • Introduction
      • Requirements and Design
      • Proximity Sensing
      • Related Work
      • Conclusion and future work
    • Introduction
      • Blind students
      • Number of blind persons in this country: 1.1 million
      • Number of blind school age children: 57,425
      • Estimated annual cost of blindness to the federal government: $4 billion
      • Lifetime cost of support and unpaid taxes for one blind person: $916,000
    • Requirements and Design
      • Passive, low-cost, High Frequency RFID tags
      • Siemens S65 cell phone under $200 inclusive of a service contract
      • Bluetooth RFID combination reader is $170
      • The unit cost of the NAVCOM belt is under $200
    • Requirements and Design
      • Indoor Navigation Infrastructure
      • Outdoor Navigation Infrastructure
      • Room and Path Mapping
      • RFID Technology Options
      • Mobile Software Platform
      • RFID Reader
      • Data Encoding on RFID Tags
      • NAVCOM Belt
    • RFID Reader
    • Data Encoding on RFID Tags
      • <tag>
      • <location>
      • <latitude>1234.5678</latitude>
      • <longitude>5678.1234</longitude>
      • </location>
      • <object type=&quot;chair&quot;>
      • <position type=&quot;delta&quot;>10 10</position>
      • </object>
      • <object type=&quot;table&quot;>
      • <position type=&quot;delta&quot;>10 -10</position>
      • </object>
      • </tag>
    • XML v.s CML v.s Huffman encoding efficiency
    • NAVCOM Belt
    • Proximity Sensing
      • Determine user orientation so navigation to the object can occur
    • Proximity Sensing
    • Related Work
      • RF transmitters
      • The High-Density active RFID Tag Space
      • GPS/Digital Compass
      • Outdoor IR beacons
      • The Locust IR system
      • DGPS
    • Conclusion and future work
      • The mature technology
      • Economically feasible
      • Text-to-Speech and voice recognition
      • The core application responsible for assisting with wayfinding
      • An automated robotic platform will be designed
    • Thank you