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Archive for May, 2009

Next-generation TI chip support

From On the Internet of Things blog:

Sensinode recently announced support for the next-generation CC2530 radio chip from Texas Instruments.

This new chip is an exciting development on the SoC front, and compliments the general industry trend towards SoC radio technology. Our Sensinode team is excited about this new chip which gives us much better performance in terms of receiver sensitivity and transmit power (= better range). In addition the processor core has several improvements over the CC2430. The new chip has a huge amount of flash now at 250 kB. Although this may be needed by ZigBee Pro stacks, which are very complex, Sensinode’s NanoStack 2.0 needs only the 64 kB version of the chip. As the CC2530 is available in 128kB, 64kB and 32kB versions – that is a direct cost savings.

The transaction to a new chip generation takes a long time – and the CC2530 is only sampling now. I hope to see Sensinode CC2530-based products late this year. As this is fully compatible with our current 6LoWPAN network products based on the current CC2430 – this transition is a smooth one.

This compliments Sensinode’s earlier announcement for NanoStack 2.0 support for the TI Sub-GHz CC1110 chip, which shows how flexible 6LoWPAN is over various radio technologies. At only 32 kB of ROM and 4 kB or RAM, it also is also shows how small a complete wireless IPv6 stack can get. Sub-Ghz 6LoWPAN networks are extremely interesting in terms incredible range and the avoidance of 2.4GHz interference. In the Smart Metering market, Sub-GHz 6LoWPAN is receiving tremendous interest. New Sub-GHz versions of Sensinode products will be available already 3Q-2009.

More info here.

PhD Students in Wireless Sensor and Actuator Networks

What they are asking for: You should have completed or are about to graduate with a Masters degree in computer science or computer engineering. You need to have a priory knowledge about distributed systems and wireless sensor networks in general and quality of service and resource management in wireless sensor networks in particular. Moreover, you need to be able to work in a team and have intellectual curiosity and knowledge of relevant topics. Your main responsibility will be to carry out research, but you will also be given the opportunity to acquire some teaching experience.

You can apply for this job before 15-06-2009.

More info here.

USC focuses on finding bridge damage

Researchers at the University of South Carolina are using $4 million in federal grant money to develop a specialized sensor that can detect bridge damage, the school announced Thursday. Paul Ziehl, an associate professor at the university’s Department of Civil and Environmental Engineering, will be the lead researcher on USC’s portion of the project, which is part of an overall effort to improve the nation’s infrastructure.
“Many of our bridges were built 50 years ago, and many of these structures have a life expectancy of 50 years,” Ziehl said. “This project focuses on steel and concrete bridges. What we learn will help us more quickly determine the health of a bridge and the length of time that it can be used.”
The National Institute of Standards and Technology has funded a $14 million infrastructure project that combines work being done at the University of Miami, Virginia Tech and USC.
The Federal Highway Administration estimates that more than 70,000 bridges in the U.S. are structurally deficient, meaning they need to be monitored or repaired.
Slightly more than 12 percent of South Carolina’s 8,343 bridges are structurally deficient, according the S.C. Department of Transportation.

More info here.

We're back!

piratesSorry, we have offline a couple of days due to a denail of service attack. As our hosting service Dreamhost wrote us:

It appears your site wsnblog.com is currently experiencing a heavy denial of service attack which is causing extremely high loads on your server.
Because of this, we’ve been forced to temporarily disable the domain.  We can re-enable it in a few days once the attack has subsided.

Well, after 72 hours we are back. But this is the message we received today:

I don’t understand why, if the server has been under attack, they want to disable OUR website! Please don’t attack us anymore.

Cheers,

Marco

Wireless Sensors Will Transform Oil And Gas Automation

As morning coffee drinkers know, getting too wired can reduce productivity. The same is true for sensor systems in drilling rigs, gas plants, and many other processes. Running wire is always an expense, and sometimes very difficult to achieve. The solution? Take a look at WirelessHART (Highway Addressable Remote Transducers), an industry communication standard. This technology is to wired sensors what cellphones and BlackBerries are to land-line telephones-if anything, WirelessHART is even more revolutionary in the petroleum sector and far beyond.

For more information clck here

Real Time Noise and Air Quality Monitoring Over Mobile Internet

Air pollution is one of the number one factors that affect our quality of life and health. Currently, pollutants are measured at different stations in a city and that data is aggregated to a single number (the air quality index) and published once a day on a website. There is not enough data that gets gathered to evaluate air quality in a given neighborhood and that data is hard to find. Now a European company called Sensaris is using Bluetooth wireless sensors, used in combination with mobile phones, that allow citizens to monitor and report air and sound quality data. Its first large scale deployment is in Paris.

Pollution is location dependent. Those living next to a busy freeway or industrial area or temporarily exposed to upwind or downwind conditions are often exposed to more air and noise pollution, but do not necessarily have monitors in place to record and report those conditions. This mobile way of monitoring and reporting conditions is likely to empower citizens of these neighborhoods and key decision makers to take action.

More info here and here.

eKo network at NRS reserves pioneer new ways to observe Earth!

From Crossbow’s blog:

Crossbow’s revolutionary eKo system was featured in the Spring/Summer Edition of Transect. The main article focuses on the implementation of sensor networks for observation. The eKo system is being used to monitor the microclimates of the various wetlands at the Blue Oak Ranch Reserve. The goal of the deployment is to collect detailed and accurate measurements about the environment to track changes, but also determine how these changes affect the plant life and various species within that ecosystem.

Using various soil moisturesensors and ambient temperature/humidity sensors with the eKo node, researchers are able to gather valuable data quickly and easily. With its ecofriendly solar-panel and weatherproof enclosure, the eKo system takes technology into the wild! Using the advancements in networking technology, engineers and scientists working at the University of California, NRS reserves are playing a key role in the global discovery occurring through monitoring. The “Alpha Node” tower at Blue Oak Ranch provides information about data above ground and underground. AsHamilton states“It’s a solar-powered weather station, but it’s also a wireless relay point that links the Lick Observatory [owned and operated by UC and located on nearby Mt. Hamilton*] to a directional Wi-Fi radio that points down to the barn, providing us with Internet access. And this omni-directional antenna plugs into the router on the tower to create a large Wi-Fi cloud on the top of the hill that’s strong enough to get a signal down to the pond and the stream at the foot of the hill, so researchers will be able to monitor these locations using portable wireless environmental sensing systems.”

More info here.

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