1. Graz, August 31, 2010 AIECS 2010 SOSEWIN A Wireless Self-Organizing Network for Seismic Early Warning and Rapid Response Wolfgang Reisig

2. Istanbul: an area of earthquakes

3. Early Warning ??? An earthquake yields two types of waves: 1.The P-wave : quick (e.g. 5 km per second) and shallow 2.The S-wave : slow (e.g. 3 km per second) and powerful 41 km off epicenter, the P-wave arrives 5.0 s before S-wave. Idea: identify the P-wave, close supplies for gas, electricity, etc before S-wave arrives.

4. at present: few high sensitive seismometers in the outskirts not useable for early warning

5. SOSEWIN idea many low cost seismometers on top of buildings, bundled in a wireless network, with two purposes: 1.Early Warning 2.Ad hoc local damage estimation

6. The core problems at the crucial moment … the network is mobile seismometers fail links deteriorate … or it has just been a heavy truck, a mouse, wind … idea: cover all those effects by software!

7. SOSEWIN network 20 low-cost seismometers 300 € / node wireless meshed, multi-hop distance: up to 200m

8. a P-wave approaching … the Structure of SOSEWIN

9. half the members a P-wave approaching … the Structure of SOSEWIN

10. half the members half the groups: Alarm !!!!!! a P-wave approaching … the Structure of SOSEWIN

11. half the members half the groups: Alarm !!!!!! a P-wave approaching … the Structure of SOSEWIN

12. how would you organize all this? you need distributed algorithms leader election echo algorithm

13. how would you model all this? MSC /LSC Petri Nets ASM

14. ad hoc reaction by predefined scenarios SOSEWIN alarm authority start sirens sound gas supply shutdown close valves completed authoritygas supply valve x failed close valves fire dept. priority alert at x

15. Graz, August 31, 2010 AIECS 2010 SOSEWIN A Wireless Self-Organizing Network for Seismic Early Warning and Rapid Response Wolfgang Reisig The end