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An Investigation of Bluetooth Application Program Interface Layer Development

An Investigation of Bluetooth Application Program Interface Layer Development. Sam Knights Rhodes University Supervisors: Dr G. Foster and Prof P. Clayton. This will contribute towards. an Automated Wireless Identification System (AWIS) for tracking animals in the wild. Presentation Outline.

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An Investigation of Bluetooth Application Program Interface Layer Development

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  1. An Investigation of Bluetooth Application Program Interface Layer Development Sam Knights Rhodes University Supervisors: Dr G. Foster and Prof P. Clayton

  2. This will contribute towards an Automated Wireless Identification System (AWIS) for tracking animals in the wild.

  3. Presentation Outline • Introduction/Background • Goals and Objectives • Approach • Deliverables • Conclusion

  4. Introduction • Who or what is Bluetooth? • Danish King, blueberries (ca 950) • Wireless radio-based network protocol

  5. Background - Bluetooth • Why Bluetooth • Wild animals collect data about their own social interaction • Radio collars, IrDA and 802.11b unsuitable • Low power, 10m range.

  6. Background – Bluetooth 2 • Bluetooth Protocol Stack • Implements Bluetooth Protocol and acts as controlling agent • Allows communication with other devices and control of own device. • Comprises of layers and profiles (defined set of functionality). Applications Service Discovery Protocol RFCOMM SDP Wireless Serial Port BT STACK L2CAP Logical Link Control Adaptation Layer HCI Host Controller Interface Hardware

  7. 3rd Party Software Stack Extensions Application Programming Interface • Mechanism used to access Protocol Stack • Exposes core functionality OBEX API OBEX Service Discovery Application Profile Serial Port Profile SDP API RFCOMM API RFCOMM SDP BT Stack L2CAP HCI

  8. Objectives – My project fits in here • Goal : Investigate APIs allowing • Device connectivity • Data transfer • Feature-rich, robust for networking app development

  9. Approach - Software Small footprint clients • Windows CE • Windows Sockets (WinSock) • Virtual COM Ports • 3rd Party Vendors e.g. AveLink • Embedded Visual C++ 4.0 • .NET Compact Framework Application Development

  10. Application Programming Interface • Windows CE implementation of the Bluetooth Protocol Stack Applications OBEX Winsock COM Port Emulation 3rd Party Software Stack Extensions AFD RFCOMM SDP L2CAP HCI

  11. Approach - Experimentation • To start: • two Bluetooth devices • Two dongles initially • A number of PDAs for mobile testing • one Bluetooth host • Bluetooth Stack and Bluetooth API • Basic Application must have: • Stack initialisation, Device Management, Device and Service Discovery, Communication. • Field test in the CS Department • Device discovery • Data transfer

  12. Deliverables • Application - Device Connectivity • Device discovery, data transfer, features. • Feasibility Study • Rapid prototyping • Application developer’s point of view • Claims of simplicity, constraints therein

  13. Summary and Conclusion • Outline and introduction of Bluetooth • Access of Bluetooth Protocol Stack via Application Programming Interfaces (APIs) • Objectives and approach • Deliverables

  14. Questions?

  15. Wireless Projects A. King : Peer-to-peer networking , Data transfer B.Clayton : Scatternets, Ad-hoc networking S. Knights : Application Programming Interfaces BLUETOOTH STACK B. Fox : Custom operating system image

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