fire detection and rescue applications by: eileen balci
TRANSCRIPT
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