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


Hourly Wage Gap Grows: Gender Pay Gap Still Fixed At Fourteen Percent

“The totally unchanged pay gap is a slap in the face for women, families and the economy,” says Coalition spokesperson, Angela McLeod. Even worse, Māori and Pacific women face an outrageous pay gap of 28% and 33% when compared with the pay packets of Pākehā men. More>>


Housing: English On Housing Affordability And The Economy

"Long lead times in the planning process tend to drive prices higher in the upswing of the housing cycle. And those lead times increase the risk that eight years later, when additional supply arrives, the demand shock that spurred the additional supply has reversed. The resulting excess supply could produce a price crash..." More>>


Sweet Health: Sugary Drinks Banned From Hospitals And Health Boards

All hospitals and DHBs are expected to kick sugary drinks out of their premises. University of Auckland researcher, Dr Gerhard Sundborn who also heads public health advocacy group “FIZZ”, says he welcomes the initiative. More>>


NASA: Evidence Of Liquid Water On Today's Mars

Using an imaging spectrometer on MRO, researchers detected signatures of hydrated minerals on slopes where mysterious streaks are seen on the Red Planet. These darkish streaks appear to ebb and flow over time. More>>


Bird Brains: Robins Can Just Be Generally Clever

Research from Victoria University of Wellington has revealed that birds may possess a ‘general intelligence’ similar to humans, with some individuals able to excel in multiple cognitive tests. More>>


Psa-V: Positive Result On Whangarei Kiwifruit Orchard

Kiwifruit Vine Health (KVH) has received a Psa-V positive test result on Hort16A and male vines on a kiwifruit orchard in Whangarei. This is the first confirmed case of Psa-V on an orchard in the Whangarei region. More>>

Regional Accents: Are Microbes The Key To Geographical Differences In Wine?

A new study of six of New Zealand’s major wine-growing regions has found that differences in flavour and aroma of wine from different areas may depend more on microbes than was previously thought. More>>


Science: AgResearch To Cut Science Staff In Areas Of 'Reduced Demand'

“We are therefore consulting with our staff from today on a proposal to reduce science staff in areas of shrinking demand. Combined with recruitment planned in areas of growing demand, this would mean a net reduction of 15 scientists and 41 technicians at AgResearch in the 2015/16 year." More>>


Get More From Scoop

Search Scoop  
Powered by Vodafone
NZ independent news