New products, Conferences, Books, Papers, Internet of Things

Archive for October, 2007

Wireless Sensors use MEMS to Monitor Bearings in Jet Aircraft Engines

Researchers at Purdue University, working with the U.S. Air Force, have developed tiny wireless sensors resilient enough to survive the harsh conditions inside jet engines to detect when critical bearings are close to failing and prevent breakdowns.

Dimitrios Peroulis, an assistant professor of electrical and computer engineering at Purdue, holds a new MEMS sensor at an “environmentally controlled probe station.” The wireless sensors are being developed to detect impending bearing failure in jet engines. The probe station recreates extreme conditions inside engines, enabling researchers to test the sensors.

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Postdoc position in WSN

The University of Trento, Italy, seeks applications for a position for a post-doctoral researcher in the Department of Information and Communication Technology.

The position is part of a large project (5.3 MEUR) funded by the local government of the Trentino province. The project includes other local research centers, Siemens as industrial partner, as well as several research groups within the Department.

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Accenture & Wireless Sensor Networks

Accenture Technology Labs is taking interest in sensornets. The emerging trend of Sensor Telemetry combines data—historical and current—with two-way wireless communications to offer unprecedented visibility into and management of equipment, products and interactions. It promises organizations more detailed, real-time views, not just of individual business transactions, but of physical state and operations, and human conditions. Sensor Telemetry will also enable organizations to respond faster and even predict incidents before they occur.

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Selecting a Wireless Sensor Development Platform

From Embedded.com:
The plethora of wireless sensor network development solutions offered today is overwhelming. It is not possible in any way to give a comprehensive coverage of the market.

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Merging Arduino and Xbee

There are many open source projects out there. Many of you are familiar with the concept of open source software, where the source code is made available. Not so common is the idea of open-source hardware. What is the idea here? You get the full details of the hardware and firmware as if it were just the code of an open source software project. It is about extending the openness of a project to the hardware and firmware levels.

Arduino is one of these open-source hardware projects. It is a family of small printed circuit boards powered by Atmel micro-controllers that can be programed. You develop the code for these micro-controllers using an Integrated Development Environment (IDE) also provided on the project’s web-page, available for Windows, Linux or OSX. The IDE is based on Processing IDE I covered a while ago and the programming language is based on Wiring language. The goal is to make user life easier as the development is aimed to artists more than to engineers.

Interesting blog entry available here.

NSLU2 morphs into sensor network gateway

Crossbow Technology has pressed the ubiquitous Linksys NSLU2 (aka “Slug”) into service as a network gateway. The Stargate NetBridge enables remote access to data collected by the company’s wireless sensors, and runs a customized embedded Debian OS along with specialized applications.

Crossbow, a provider of wireless sensors such as the Linux-powered Imote2 introduced in June, says the “easy to configure” Stargate NetBridge gateway enables network-wide access to sensor data via a Web browser. The company claims the device offers plug-and-play connectivity with any of its BU series of wireless sensor network base stations.

Although the Stargate NetBridge is a variant of the Linksys NSLU2, “both hardware and software have been enhanced specifically for the sensor network data appliance application,” Crossbow said.

More info here.

Help for MSc thesis

Hello guys,

I’m trying to finish the introduction chapter to my MSc thesis on WSNs and was trying to find out if there have been any studies on actual deployments where the nodes were deployed randomly to study large scale environmental catastrophes like floods/fires/avalanches/etc. I know the random deployment is the ideal in the vision of WSNs, but none of the examples I have seen, seem to try this.

Thanks for any leads,

Glenn Patterson

glenndavidpatterson@gmail.com

Sun's SPOT: a poor man's Minority Report interface

From Engadget:

What happens when you combine Sun’s Small Programmable Object Technology with its Project Looking Glass 3D user interface environment, and add a glove with an accelerometer? Apparently, the attempt at the early 21st century’s equivalent of Minority Report’s glove based user interface, with a demo video showing an operator browsing a desktop using simply hand and finger motions. There’s a pretty noticeable lag, the system still uses a mouse pointer, and the operator obviously has to stand dead still for it to work, but this is probably the closest anyone has come to emulating the geek dream that is the pre-crime memory navigator that Tom Cruise evangelized in the film.

http://www.builderau.com.au/video/embed/22429776

Announcing NS-2.32 release and allinone package

This is to announce the posting of the ns-2.32 source code release and a corresponding ns-allinone-2.32 package.

Downloads are available at the Sourceforge project pages.

The following have been added to ns-2 since ns-2.31:
- enable Tk for ns-2 (Pedro Vale Estrela’s patch)
- split validation tests into “portable” and “non-portable” tests
- SCTP enhancements and bug fixes (from University of Delaware PEL)
- change validation compression format to gzip
- updated Tcl/Tk (8.4.15) for the allinone package

For troubleshooting or workaround tips, please consult (and contribute
to) this wiki page.

Arch Rock has joined the IPv6 Forum

Arch Rock Corp., the first company to offer the IEEE 802.15.4 low-power wireless sensor network (WSN) systems incorporating IPv6—the latest and most scalable version of the ubiquitous Internet Protocol—has joined the IPv6 Forum.

The IPv6 Forum was formed in 1999 to help create a high-quality and secure next-generation Internet with equitable worldwide access.

Arch Rock uses IPv6 in its Primer Pack/IP, a WSN solution introduced in March 2007. Primer Pack/IP was the first commercial implementation of the IETF 6LoWPAN standard, created to enable wireless IPv6 communication over IEEE 802.15.4 low-power radio for sensor nodes and other devices with limited power, memory and bandwidth.

More info here.

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