Fire Detection and Rescue Applications

By: Eileen Balci

Fire Detection and Rescue Support Framework with WSN

• Low Latency • Management at a Distance– Indirect remote control management system

• Pre arranged sensors• Middleware and Monitoring Software• Multi-hop routing protocol based on link

quality indicator (LQI)

Node Operating AlgorithmWhile true

Receive message from other nodesIf receive event alarm

Notify this path is not safe (LED blinking)If type of node is equal to NS

Forward event alarm to other nodesT = measurement resultForward T to other nodesIf T>event_threshold

Notify this path is not safeForward event alarm to other nodes

End;

Node Operating Algorithm Cont.

• This algorithm could be useful to an extent. It is used to detect fire, we might want to use this but change it to “detect” the victim.

Escape Path Algorithm

Construct all paths from the topology of sensor nodesWith collected data at the sink node

If there are alarm-generating nodesMark paths include them unsafe

If T>event_threshold of middlewareMark paths include path of T’s node unsafe

Mark reverse paths of unsafe path escape path

Escape Path Algorithm Cont.

• This algorithm isn’t useful for our purposes because we want to find the path to and from a victim not find a path that is safe to travel in during a fire.

Conclusion

• While this group is using TinyOS and ten sensor TIO710CM motes using fire detection software they are placing the nodes in specific places.

• We want something that is random not something that is static because we don’t know how our topology will look like every time while in this fire scenario case they do.

Engineering a Search and Rescue Application with a WSN

• Focuses on a Test-bed application• In the test bed, mobile robots are used to act as

target and rescuer/pursuer entities• The target robot is “in distress” and is remotely

controlled by a joystick and has a WSN node mounted on it to signal its presence which are relayed to the control station.

• A rescuer robot tries to find the target robot

Application Cont.

• It seems that there are preplaced motes that receive info from the robots and are sent back to the Control Station (again, these motes are not randomized)

• Also in this case, the target (in our case it would be our victim) is mobile and as it moves its location is updated and info is relayed to the Control Station where the rescuer robot can gain info and move towards the target.

Examples

Technology

• It seems TinyOS is a common tool for WSN’s. • What kind of mote or node we use really

depends on what functionality we want.

Works Cited

http://www.open-zb.net/publications/WoWMoM07.pdf

ieeexplore.ieee.org/iel5/4420216/4420217/04420250.pdf?arnumber=4420250