Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 


Student’s invention harvests energy from earthquakes


23 November 2012
_____________________________________________________

Student’s invention harvests energy from earthquakes

A wireless vibration sensor being developed by a Victoria University student could provide a low-cost solution for engineers to monitor the damage of buildings affected by earthquakes.

Daniel Tomicek, a fourth year Electronic and Computer Systems Engineering student, has been working on the innovative device, which harnesses the kinetic energy generated by earthquakes, as part of his final year research project.

The wireless sensor Daniel has developed is designed to be placed in several locations of a building to monitor the stress sustained by different areas during an earthquake.

The sensor harnesses the energy of the building’s movement during an earthquake to power itself, measuring the acceleration of the movement, and transmitting information in the form of data packets to an off-site computer. The data can then be used by engineers to help assess the extent of damage to the building.

When earthquakes occur, the energy harvested from the vibrations activates the wireless transceiver to transmit the data packets which contain the sensor’s identifier. The greater the vibrations, the greater the energy harvested and the more packets that are sent. The device uses minimal energy—so when there is no movement, the sensor simply does not operate.

Daniel has been working with Professor Winston Seah and Dr Ramesh Rayudu from Victoria’s Faculty of Engineering to develop a prototype which is affordable, and can be easily fixed to different parts of a building.

Currently, no sensor exists in the marketplace that doesn’t rely on batteries or electricity supply to run—meaning Daniel’s sensor is a major step forward.

“The biggest challenge has been figuring out how to make the sensor work from a cold start—how to ensure the initial packet of information was sent, given that earthquake movements begin so suddenly,” says Daniel.

He has been testing the sensor’s capabilities recently at Te Papa’s Earthquake House in its Awesome Forces exhibit, where the device monitored ‘earthquakes’ at the house over the course of a week.

“Testing at the Earthquake House was a real success. The device managed to sense each earthquake and send packets of information for each one.”

“Being able to use the exhibit was a very handy way of testing the device, and the staff members at Te Papa were really supportive.”

Daniel says he was inspired to create a kinetic sensor after a friend worked on a similar project during a summer research scholarship at Victoria University. He had also heard about applications being developed in Europe, where special springs added to dance floors in nightclubs can harness an electrical current generated by the movement of dancers, which is then stored in batteries and used to run devices.

Daniel is looking forward to graduating next year and doing some overseas travel, before applying the skills he has learnt at university in the workplace.

Daniel Tomicek’s wireless vibration sensor which he built during his
fourth year of engineering studies at Victoria University.

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Scoop Business: RBNZ Keeps OCR At 3.5%, Signals Slower Pace Of Future Hikes

Reserve Bank governor Graeme Wheeler kept the official cash rate at 3.5 percent and signalled he won’t be as aggressive with future rate hikes as previously thought as inflation remains tamer than expected. The kiwi dollar fell to a seven-month low. More>>

ALSO:

Weather: Dry Spells Take Hold In South Island

Many areas in the South Island are tracking towards record dry spells as relatively warm, dry weather that began in mid-August continues... for some South Island places, the current period of fine weather is quite rare. More>>

ALSO:

Scoop Business: Productivity Commission To Look At Housing Land Supply

The Productivity Commission is to expand on its housing affordability report with an investigation into improving land supply and development capacity, particularly in areas with strong population growth. More>>

ALSO:

Forestry: Man Charged After 2013 Death

Levin Police have arrested and charged a man with manslaughter in relation to the death of Lincoln Kidd who was killed during a tree felling operation on 19 December 2013. More>>

ALSO:

Smells Like Justice: Dairy Company Fined Over Odour

Dairy company fined over odour Dairy supply company Open Country Dairy Limited has been convicted and fined more than $35,000 for discharging objectionable odour from its Waharoa factory at the time of last year’s ”spring flush” when milk supply was high. More>>

Scoop Business: Dairy Product Prices Decline To Lowest Since July 2012

Dairy product prices dropped to the lowest level since July 2012 in the latest GlobalDairyTrade auction, led by a slump in rennet casein and butter milk powder. More>>

ALSO:

SOE Results: TVNZ Lifts Annual Profit 25% On Flat Ad Revenue, Quits Igloo

Television New Zealand, the state-owned broadcaster, lifted annual profit 25 percent, ahead of forecast and despite a dip in advertising revenue, while quitting its stake in the pay-TV Igloo joint venture with Sky Network Television. More>>

ALSO:

Get More From Scoop

 
 
Computer Power Plus

Standards New Zealand

Standards New Zealand

Mosh Social Media
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news