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ETH Zurich - D-ITET - IfE - Wearable Computing - Education - Student Projects - Spring 2008 - Titan on a mobile phone 
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Titan on a mobile phone

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Type: Semester project
Student: Tonio Gsell
Advisors: Clemens Lombriser, Andreas Bulling

In this project, the already existing TitanJava network management system has been ported from desktop PCs to mobile phones. Moreover, a graphical user interface has been added to its functionality, which o ers a convenient handling of the application on the mobile phone for the user. In order to be able to communicate wirelessly to the available sensor nodes running Titan in the environment, Bluetooth device and service discovery functionality were implemented. On top of the RFCOMM protocol, which o ers a serial byte stream to a wireless Gateway, a message structure similar to message t used in TinyOS was developed and embedded in a stuffing algorithm with integrity checks.
TitanMobile_pic

Bandwidth measurements were conducted and found a maximal reachable throughput of 5.6 kbps between the sensor nodes and the mobile phone. This is mainly due to the default Bluetooth setting of 9600 baud, equal to 9.6 kbps used on the wireless Gateway.
We have implemented a modi ed Simulated Annealing algorithm, called Simulated Quenching which allowed us to nd mappings of TaskGraphs to the sensor network topology with minimal power consumption. Algorithm performance tests on the mobile phone were conducted to test the usefulness of mobile phones as network managers. Mappings for TaskNetworks consisting of up to 25 sensor nodes and a Task Graph of 10 tasks can be calculated in less than 10 seconds on a Sony Ericsson P1i.

 

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© 2012 ETH Zurich | Imprint | 22 July 2008
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