Embedded and Reliable Systems Laboratory
Summer 2005 News

Pervasive Infrastructure Sensor Networks

Wireless Building Sensor Network
Most networking research on ad-hoc networking for sensor networks use a random distribution of sensors to evaluate the algorithms. We have been developing a series of building models to evaluate sensor networking algorithms. After all, how many times is a sensor network scattered about randomly?

39-605 Engineering Product Design
For the Fall 2005, Westinghouse will be sponsoring a project on wireless sensor networks. How well does a wireless sensor network work when it is of extreme importance that it works. We'll find out.

Wireless Micro-Fuelcell Critter
Given the power concerns of using wireless sensors, we have developed a wireless sensor device that uses a micro-fuelcell. We couple it with network simulations to determine how much power is needed at each sensor. Our design allows for the variation of fuel at each sensor so that you don't spend all your time changing batteries!

Dense Sensing of Machine Rooms
We have been deploying our rack critter to test the ability and need to have dense sensing in a machine room. If you want to be more efficient in your environmental controls, how many sensors do you need? Two on each machine, front and back? As experimental scientists, we deploy the sensors, collect the data, and make nice graphs. How much sensing is needed in a machine room anyway?

Building Energy Monitoring
The Critter sensor data collection has hit the year and a half mark. We have a lot of data and are starting to analyze it. Here's a sneak peek: Averaging several data samples to eliminate sensor perturbations is actually a bad idea. We waste more energy at night than during the day! Overall people are good environmental citizens and don't waste energy.

Large Sensor Network Management
The Arctic Net project which started out as a class project in 39-650, System Design and Implementation of Sensor Networks, is growing into a serious research project. ArcticNet uses building cameras as a platform and adds the ability to securely manage a large pervasive number of cameras.

Reliability and Robustness

Software Design Book
The first half of a book on software design using UML is available. It covers the software design specification process including use cases, activity diagrams, state charts, and deployment diagrams. The book is a cover-to-cover example of a software design project rather than isolated examples. It is being used in the IUP Software Engineering Concepts course.

FlakyIO Expands Coverage
The FlakyIO system for extreme I/O testing has grown with several implementations including: FlakyPHP, FlakyCORBA, and FlakyNet. Thanks to Zac we also have a FlakyPython.

AskAndy Beta+
The AskAndy knowledge management repository system is continuing its beta phase. It is being used by several groups at CMU. Big thanks to the ICES admin staff for their great feedback for improvement. It is also being used as a KM repository system for a few classes as well. The biggest suggestion we were given was to call it a FAQ manager. No intranet programming skills required. Any company wishing to test out the system let me know and we can set you up.