Verry Nice HighFive MidSemester Demo

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Verry Nice! High-Five!Mid-Semester Demo

• Yoojin Kwak
• Michael Preysman
• Ruben Quintero
• Russell Savage

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Recap Concept

• Portable communication device for use within
  industrial, collaborative work environment
• Send audio (possibly picture) information to
  groups of people
• For use in nuclear facilities where radios are
  not used due to sensitive equipment

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Basic architectural diagram
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Detailed architectural diagram
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Software Architecture Diagram
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Status Update

• Received Hardware (yesterday)!!
• No longer using Bluetooth
• Initial Base Server GUI completed
• Preliminary communication over wireless and
  relaying through the base station
• Able to overlay signals

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Mid-Semester Demo
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Next Steps

• Get laptop code working with gumstix
• Start/Finish Group Management code
• Increase/test number of users base station can
  handle
• Quality of Service testing over CMU network
• ??? ??? ?? ??

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Major risks associated

• Major risks centered around network
• Network traffic
• How much bandwidth/users
• Latency
• Back and forth between base station
• Packet loss
• Impact on overlaying signals
• Interference
• Potential obstacles, etc.
• Seamlessness
• Packet transition between different nodes
• Hardware software usability

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Risk Mitigation

• Fundamental Risks
• Must be able to seamlessly have a conversation
• Packet loss cannot be an issue
• Latency must be below .5 seconds
• Ancillary risks
• Nice to have 10 users
• No hardware issues

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Risk Mitigation
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Lessons Learned

• Java is sweet, Gumstix is not.
• Bluetooth development support for connection
  profiles is non-existent/hard to find.
• Network delays are larger than expected even on
  WiLAN.
• 44 lobsters CAN be eaten in 12 minutes.

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Tentative Schedule
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The End!