Brian Loo (bloo)?

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Group 9 ChillGeordi RFID based navigation

• Brian Loo (bloo)?
• Zane Starr (zcs)?
• Geeta Shroff (gshroff)?

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Project Overview

• Indoor navigation system
• When GPS not available
• Map creation application on desktop
• Map database loaded stored on device
• Shortest path to destination calculated
• RFID tagged path read by device
• Communicated to user via text to speech software
  on device or touchpad

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Status Update

• Whats new since last time
• Integrated all code into one project solution
• Finally deployed on PDA!!
• Testing and experimentation
• But... Tserialization does not exist for PDA
• Solution XML for formatting
• But... Stack overflow when over 50 nodes in DB
• Solution
• Not storing neighbor object connections in DB
• Generating graph connections in Astar instead

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Experimentation Plan

• Data Transmission From Reading Tag to Outputting
  Directions to User
• Why Check communication latency so user does not
  hit the next tag before the current tag is
  processed
• How Using System timestamps.
• Fault-free
• Database benchmarking
• PathFind benchmarking (A)?
• RFID tag processing latency
• Failure-Injected
• Turning off RFID Reader
• Trying to read a tag not along path

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Initial data

• X-axis No. of nodes added to DB
• Y-axis Time in ms to add nodes to DB
• Time grows exponential as DB size increases

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Looking ahead

• Challenges
• Audio integration Directing user to destination
  ( providing correct instructions)?
• The Plan
• Optimize code to handle more nodes
• Test out system in a real setting
• A little adventure
• Make code generic to handle other types of
  location input in addition to RFID tags

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Questions ?