Design of a Wireless Sensor Network Platform for Detecting Rare, Random, and Ephemeral Events

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Design of a Wireless Sensor Network Platform for Detecting Rare, Random, and Ephemeral Events (2005)

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by Prabal Dutta , Mike Grimmer , Anish Arora , Steven Bibyk , David Culler

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@INPROCEEDINGS{Dutta05designof,
    author = {Prabal Dutta and Mike Grimmer and Anish Arora and Steven Bibyk and David Culler},
    title = {Design of a Wireless Sensor Network Platform for Detecting Rare, Random, and Ephemeral Events},
    booktitle = {},
    year = {2005},
    pages = {497--502}
}

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Abstract

We present the design of the eXtreme Scale Mote, a new sensor network platform for reliably detecting and classifying, and quickly reporting, rare, random, and ephemeral events in a largescale, long-lived, and retaskable manner. This new mote was designed for the ExScal project which seeks to demonstrate a 10,000 node network capable of discriminating civilians, soldiers and vehicles, spread out over a 10km 2 area, with node lifetimes approaching 1,000 hours of continuous operation on two AA alkaline batteries. This application posed unique functional, usability, scalability, and robustness requirements which could not be met with existing hardware, and therefore motivated the design of a new platform. The detection and classification requirements are met using infrared, magnetic, and acoustic sensors. The infrared and acoustic sensors are designed for low-power continuous operation and include asynchronous processor wakeup circuitry. The usability and scalability requirements are met by minimizing the frequency and cost of human-in-the-loop operations during node deployment, activation, and verification through improvements in the user interface, packaging, and configurability of the platform. Recoverable retasking is addressed by using a grenade timer that periodically forces a system reset. The key contributions of this work are a specific design point and general design methods for building sensor network platforms to detect exceptional events. 1.

Keyphrases

ephemeral event wireless sensor network platform detecting rare continuous operation acoustic sensor user interface asynchronous processor wakeup circuitry scalability requirement key contribution new sensor network platform node deployment recoverable retasking grenade timer robustness requirement new platform system reset classification requirement specific design point node network node lifetime retaskable manner general design method exscal project extreme scale mote building sensor network platform exceptional event human-in-the-loop operation new mote aa alkaline battery

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