1. G ROUP W IRELESS L OCATION T RACKING W ITH A N A NDROID S INK By Ronny L. Bull, Alexander B. Stuart, and Edward Spetka CS 528 – Professor Geethapriya Thamilarasu

2. O BJECTIVES Create a lightweight, efficient platform for tracking the location of elements of a group i.e. Emergency, military, and leisure scenarios Utilize Micaz hardware and TinyOS software Plot positions of elements on simple interactive map interface

3. D ESIGN C ONSIDERATIONS Utilize common, inexpensive hardware Android smart phones or tablets Incorporate GPS technology Ideal for outdoor situations Take advantage of Google Maps API Create simple parsing interface

4. P REREQUISITE I NFORMATION NMEA (National Marine Electronics Association) packets contain critical information Internal to the NMEA packet is the command/reply fields which contain the most important information Elements of the command/reply fields are called sentences e.g. timestamp, coordinates, direction, distance above sea level

5. I MPLEMENTATION Hardware: Two Micaz motes One USB programming board One MTS420/400CC sensor board One Android device (emulated) One desktop computer (Ubuntu Linux 10.04 LTS Server) Software Google Maps API TinyOS 2.x Perl and Java

6. I MPLEMENTATION

7. D IFFICULTIES MTS420/400CC sensor board lacks drivers for TinyOS Independent of 1.x and 2.x TinyOS versions IEEE 802.11 and Bluetooth protocols are not supported by TinyOS TinyOS code based died sometime around 2008/2009 Unable to slow down time without proportionally decreasing productivity

8. I DEAL I MPLEMENTATION IEEE 802.11 or Bluetooth

9. D EMONSTRATION The Android device is emulated in our demonstration The GPS NMEA packets are hard coded into the GPS mote Only the coordinate information is used from the NMEA packets

10. W HAT W E L EARNED Working with WSNs requires good coordination between all involved systems

11. Q UESTIONS /C OMMENTS What else would like you to know or tell? P.S. All code is available via subversion at http://code.google.com/p/gwt-wsn-cs528/