교량의 기초 상태를 모니터링하는 '스마트 암석 Smart rocks'

An example of a passive smart rock containing a magnet suspended in liquid is in the foreground. Active smart rocks have embedded electronics.

In the background is a concrete-encased smart rock that is about the size of a basketball and weighs about 50 lbs. http://news.mst.edu/2014/07/researchers-study-smart-rocks-use-for-detecting-bridge-damage/ news.mst.edu Smart Rocks and Wireless Communicati.....