Smart Bricks to Monitor Buildings of the Future

Roland Piquepaille writes "Scientists from the University of Illinois at Urbana-Champaign have developed a "smart brick" which can monitor a building's health and report its conditions wirelessly. "This innovation could change the face of the construction industry," said Chang Liu, a professor of electrical and computer engineering at Illinois. "We are living with more and more smart electronics all around us, but we still live and work in fairly dumb buildings. By making our buildings smarter, we can improve both our comfort and safety." Built into a wall, these bricks could monitor a building's temperature, vibration and movement. Such information could be vital to firefighters battling a blazing skyscraper, or to rescue workers ascertaining the soundness of an earthquake-damaged structure. These researchers also think these devices could help monitoring nurseries, daycares and senior homes. You'll find more details in this summary."

Comments

I heard that, but you wanted it that way.

[twitter]

Finally, a solution for all of those brick skyscrapers.

It's called a curtian wall. It's not structrually bearing, but cinder blocks might be the cheapest way to do it. When you put them around a fire escape, they can keep you from cooking as fast.

I'm not sure I want "vibration" sensors in my walls for the local police department, nosy neighbors or anyone else to listen to. My voice is a "vibration" and what I say in my house and place of work is for those around me, not big brother.

your area of expertise is showing

[skepton]

If you look at the vibrations coming out of a building that is burning there is a huge jump in the amplitude of certain bands right before the building collapses.. there's basically a shift in the fundamental frequency of the building. A brick to detect this is gonna save alot of firefighters.

Basically, any structure like a bridge or a building can be characterized pretty well by its frequency response. You stimulate it with an impulse and transform the output to the frequency domain. A burning building is being constantly stimulated, so detecting the vibrations with a brick in the wall is going to let you easily determine the frequency response.

As you can imagine (this is a generalization) if there's a large spike in certain frequencies, the structure is unstable. When you engineer structures, you try and keep the frequency response flat.