Detection and analysis of low frequency vibrations to determine their sources in a water medium

Abstract

Swimming pools need some sort of alarm system to indicate if someone or an article have dropped into the water. This article conveys the methods and practices used in the detection and analysis of low frequency vibrations in water for this purpose. Logged data are used to develop a digital signal processing system that is able to distinguish between different vibration signatures to determine the source of the vibration. Conclusions are drawn from the results and the viability of the technology is evaluated.