Featured Research

from universities, journals, and other organizations

Greener disaster alerts: Low-energy wireless sensor networks warn of hurricanes, earthquakes

Date:
July 12, 2011
Source:
Inderscience Publishers
Summary:
New software allows wireless sensor networks to run at much lower energy, according to researchers. The technology could improve efficiency for hurricane and other natural disaster warning systems.

New software allows wireless sensor networks to run at much lower energy, according to researchers writing in the International Journal of Sensor Networks. The technology could improve efficiency for hurricane and other natural disaster warning systems.

Wireless sensor networks (WSNs) are used to monitor ecosystems, wild and urban environments. They have been vital in predicting events that threaten species and environments, including gathering information from animal habitats, in volcanic activity monitoring, flash-flood alerts and environmental monitoring. Wireless sensing in densely populated urban communities can be invaluable not only in monitoring the physical environment, but also for focusing on the impact people and their vehicles have on that environment through mobile emissions monitoring. Such sensing allows consideration to be given to such factors in planning for sustainable development. Unfortunately, the benefits of WSNs come at a price -- they require energy.

Computer scientist Patricia Morreale of Kean University in Union, New Jersey and colleagues Feng Qi and Paul Croft of Kean's School of Environmental and Life Sciences, explain how a mesh network of wireless sensors reports data to a central site for environmental monitoring and risk identification. They have developed such a system that reduces the energy requirements compared to conventional WSNs.

The new approach to WSNs is, they say, considered green because of the reduced energy demands in use and by the overall network as well as its actual application. It is designed so that environmental information can be obtained and communicated through periodic updates rather than the usual "timestamp synchronization" approach of conventional WSNs. "This reduces the amount of communication required between network nodes, resulting in an overall energy saving, while not compromising the nature of the data gathered," the team says. "The sensor network applications provide an outstanding representation of green networking as sparse but sufficient environmental monitoring, accompanied by real-time data analysis, and historical pattern identification permits risk identification in support of public safety and protection."

The software underpinning the new approach can monitor and check incoming sensor data against an existing database and produce charts predicting the sensors' next most likely reading. The team explains that by implementing a system that monitors and distinguishes between normal sensor variations and underlying patterns it can be used to generate real-time alarms, the moment a pattern or new event emerged. This is critical in early warnings of potentially catastrophic and fast-moving natural disasters, the team says.

The GWSN -- green-WSN -- can, at the moment, only predict the next reading based on past values. The team is now working to optimize the software to allow it to estimate future readings for any date and time.


Story Source:

The above story is based on materials provided by Inderscience Publishers. Note: Materials may be edited for content and length.


Journal Reference:

  1. Patricia Morreale, Feng Qi, Paul Croft. A green wireless sensor network for environmental monitoring and risk identification. International Journal of Sensor Networks, 2011; 10: 73-82 DOI: 10.1504/IJSNET.2011.040905

Cite This Page:

Inderscience Publishers. "Greener disaster alerts: Low-energy wireless sensor networks warn of hurricanes, earthquakes." ScienceDaily. ScienceDaily, 12 July 2011. <www.sciencedaily.com/releases/2011/06/110627134527.htm>.
Inderscience Publishers. (2011, July 12). Greener disaster alerts: Low-energy wireless sensor networks warn of hurricanes, earthquakes. ScienceDaily. Retrieved September 22, 2014 from www.sciencedaily.com/releases/2011/06/110627134527.htm
Inderscience Publishers. "Greener disaster alerts: Low-energy wireless sensor networks warn of hurricanes, earthquakes." ScienceDaily. www.sciencedaily.com/releases/2011/06/110627134527.htm (accessed September 22, 2014).

Share This



More Earth & Climate News

Monday, September 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Will Climate Rallies Spur Change?

Will Climate Rallies Spur Change?

Newsy (Sep. 21, 2014) Organizers of the People's Climate March and other rallies taking place in 166 countries hope to move U.N. officials to action ahead of their summit. Video provided by Newsy
Powered by NewsLook.com
Thousands March in NYC Over Climate Change

Thousands March in NYC Over Climate Change

AP (Sep. 21, 2014) Accompanied by drumbeats, wearing costumes and carrying signs, thousands of demonstrators filled the streets of Manhattan and other cities around the world on Sunday to urge policy makers to take action on climate change. (Sept. 21) Video provided by AP
Powered by NewsLook.com
Climate Change Rally Held in India Ahead of UN Summit

Climate Change Rally Held in India Ahead of UN Summit

AFP (Sep. 20, 2014) Some 125 world leaders are expected to commit to action on climate change at a UN summit Tuesday called to inject momentum in struggling efforts to tackle global warming. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
New Music With Recycled Instruments at Colombia Fest

New Music With Recycled Instruments at Colombia Fest

AFP (Sep. 19, 2014) Jars, bottles, caps and even a pizza box, recovered from the trash, were the elements used by four musical groups at the "RSFEST2014 Sonorities Recycling Festival", in Colombian city of Cali. Duration: 00:49 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins