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SENDROM

SENDROM. By Florin Zidaru. SENDROM. Overview Architecture How is it used: data distribution, including the localization of a detected person. 1. Overview. SENDROM: sensor networks for disaster relief operations management

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SENDROM

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  1. SENDROM By Florin Zidaru

  2. SENDROM • Overview • Architecture • How is it used: data distribution, including the localization of a detected person

  3. 1. Overview • SENDROM: sensor networks for disaster relief operations management • Designed to manage the rescue operations after large scale disasters • SENDROM uses wireless network technologies to detect living humans and continuously report their status

  4. 1. Overview Why SENDROM? • Situation: Disaster just happened and hundreds of emergency teams race to help • Problem: lack of clear plan related to thedistribution of rescue teams and the priority of digging regions (result: slow down the emergency response) • Goal: detect the people trapped under collapsed buildings

  5. 2. Architecture • SENDROM Components • SENDROM Architecture prior to a disaster • SENDROM Architecture after a disaster

  6. 2. Architecture : Components SENDROM consists of: a. sensor nodes (snodes and inodes): - deployed prior to a disaster - report the existence of life (ex. trapped under rubble) b. cnodes: - nodes that collect the data from sensor nodes - assigned to rescue teams - linked to the database, and equipped with antennas c. database - updated continuously by emergency operation centers and cnodes

  7. 2. Architecture : Components • Sensor Nodes: 1. snodes (sense and report any human being in their vicinity; no id): - standalone (ssnodes): matchbox sized located inside drawers, on top of cabinets,… - embedded (esnodes): mounted on home appliances by the manufacturers

  8. 2. Architecture : Components • Sensor Nodes: 2. inodes (unique id associated with the owner who carries them) used not only to report the status but also to locate individuals - standalone (sinodes): matchbox sized carried in the pockets or bags - embedded (einodes): embedded into the personal belongings such as wrist watches

  9. 2. Architecture: prior to a disaster

  10. 2. Architecture: after a disaster

  11. 3. Distribution of data • rescue teams use cnodes to invoke sensor nodes (snodes and inodes) • the sensor nodes switchfrom an idle mode to an active mode and start sensing and reporting the collected data • three major issues associated with this process: task distribution, sensed data distribution, and the localization of a detected person

  12. a. Task distribution • cnodes employ a directional antenna to broadcast a task in a specific region • each direction has a task id (contains also the cnode id) that is distributed along with the sensing task • the sensor nodes that receive a “start to report” msg. start sensing and reporting the collected data • in these reports, the task id (of the task they are responding to) is included (hence the cnode can find out the region where the sensed data is originated)

  13. b. Data distribution

  14. b. Data distribution

  15. c. Localization of a detected person

  16. 4. Conclusion • SENDROM possible downfalls: cost, maintenance (power management) • Interesting concept and, if implemented right, could save hundreds of lives • Examples: Katrina Disaster, Sri Lanka / Indonesia Tsunami, 9/11

  17. Reference “Sendrom: Sensor networks for disaster relief operations management” Authors: - Erdal Cayirci - Tolga Coplu Published online: 12 June 2006

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