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 Location-Aware,Time-Aware,User-aware, Device-Aware.  The user make avail location-aware computing Through PDA.

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Presentation on theme: " Location-Aware,Time-Aware,User-aware, Device-Aware.  The user make avail location-aware computing Through PDA."— Presentation transcript:

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2  Location-Aware,Time-Aware,User-aware, Device-Aware.  The user make avail location-aware computing Through PDA.

3  Basic data services.  Transactional services.  Map based services.  Filter.  Zoom.  Translate.

4  Corse-Grained System.  Accurcies on the order of meter.  Suitable for outdoor areas.  Fine-Grained System.  Accuracies on the order of centimeters.  Suitable for both with higher accuracies.

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6  End Users.  Rover Clients.  Wireless Acess infrastructure.  Servers:  Rover Controller.  Location Server.  Media streaming unit.  Rover Database.  Logger.

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8  Fine-Grained Real-Time Application-Spacific scheduling.  Servers:  Primary Server.  Secondary Server.

9  User Info base.  Content Info base.  Transaction.  Lock Acquiring.  Blocking.  Avoiding Deadlocks.

10  Location Interface.  Admin Interface.  Content Interface.  Back-End Interface.  Server Assistants Interface.  Transport Interface.

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12  Automic Unit.  Server Operation:  Ready to run.  Running.  Blocked.

13  Management And Execution Of Action:  Init(action id,function ptr)  Run(action id, function ptr, deadline, deadline failed handler ptr)  Cancel(action id,cancel handler ptr)

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15  Scenario A has 10,000 processor-bound server operations where computation is interleaved with file write operations.  Scenario B has 100 I/O bound server operations where computation is interleaved with network I/O interactions.

16  PDA(Personal Digital Assistance)  A PDA is a hand held computer, also known as a palmtop computer.  PDAs can access the Internet, Intranet or extranet via Wi-Fi, or Wireless Wide Area Networks (WWANs).

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18  System Admin Operation.  User Access Operations.  Query Operations.  Location Update Operation.  Audio Chat Operations.

19  The multi-rover system is a collection of ndependent rover systems that peer with each other to provide the seamless connectivity to the users.  The design of a multi-rover system is similar to the Mobile IP solution to provide network mobility to devices.  Authentication.  Service level agreements.

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21 The short and long term projects of this paradigm:-  Experiment with limited capability devices.  Location aware Streaming Devices.  Interact with cellular providers and implement this mechanisms on cellular interface.  Multi-Rover System.

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