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Overview of: System Architecture Directions for Networked Sensors

Motivation. Sensor networks are new computing environments in the post-PC era that are different from traditional desktop and server environments. There are several trends working together to enable the networked sensor:Moore's LawSystem on a chipMicro-electromechanical sensors (MEMS) Integrate

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Overview of: System Architecture Directions for Networked Sensors

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    1. Overview of: System Architecture Directions for Networked Sensors John Kerwin CSE 291 Sensor Networks Paper by: Jason Hill, Robert Szewczyk, Alec Woo, Seth Hollar, David Culler, Kris Pister http://webs.cs.berkeley.edu/tos/

    2. Motivation Sensor networks are new computing environments in the post-PC era that are different from traditional desktop and server environments. There are several trends working together to enable the networked sensor: Moores Law System on a chip Micro-electromechanical sensors (MEMS) Integrated low power communication

    3. Motivation (cont) Today, sensors exist on the scale of a square inch in size, and a fraction of a watt in power. In the future, it may be possible to reduce sensors to the size of a cubic millimeter, or smaller. The key missing technology for these devices is system software to manage and operate them efficiently.

    4. Project Objectives Create a prototype of a current generation sensor constructed from off the shelf components. Identify key requirements that an operating system for such a sensor must satisfy. Build an operating system that meets these requirements. Evaluate the operating systems performance while running a real application.

    5. Todays Hardware Assembled from off-the-shelf components 4Mhz, 8bit MCU (ATMEL) 512 bytes RAM, 8KB ROM 900Mhz Radio (RF Monolithics) 10-100 ft. range Temperature Sensor & Light Sensor LED outputs Serial Port

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