Luster Environmental Monitoring Using Wireless Sensor Networks Presented

Luster: Environmental Monitoring Using Wireless Sensor Networks Presented by Maha M. Dessokey

The Main Idea • Shrub are replacing grasslands and taking over Hog Island (and the world). • Where are grasslands, what happened to them? • Will we still have grass in X years? • LUSTER (Light Under Shrub Thickets for Environmental Research) system, a typical Environmental Wireless Sensor Network (EWSN), is to investigate the use of WSNs for monitoring the effects of sunlight on shrub thicket.

The Main Achievements • The main contributions of this work are: – Lite. TDMA, a cluster-based, low-power TDMA MAC protocol that supports reliable communication, dynamic reconfiguration and node addition. – An overlaid, non-intrusive reliable storage layer that provides distributed non-volatile storage of sensor data for online query, or for later manual collection. – Hardware designs for spatially dense and reconfigurable light sensing

The Challenges • New hardware to resist harsh environment. • Deployment assurance. • Reliable collection of data. • Remote data uploading. • In-network data backup. • Robustness and self-healing.

An overview of Luster software architecture • Key Software Components – Sensor queries and Data extraction. – Lite. TDMA MAC protocol. – Reliable distributed storage. – Delay tolerant networking. – Deployment time validation –Backend server and database. – Run time validation and Self-healing

Deployment Experience • Sensor nodes deployed in a cross, on a grid and along a tree branch • Solar panel, Antenna and Stargate

Reference • L. Selavo, A. Wood, Q. Cao, T. Sookoor, H. Liu, A. Srinivasan, Y. Wu, W. Kang, J. Stankovic, D. Young, J. Porter. ” LUSTER: Wireless Sensor Network for Environmental Research”. In Sen. Sys ’ 07: Proceedings of the 5 th International Conference on Embedded Networked Sensor Systems, pages 103– 116, New York, NY, USA, 2007.