Feasibility of a Pool Alarm Using Passive Sonar

In the U.S., an estimated 1200 drownings or near drownings occur each year in pools. Recent performpopular pool alarms demonstrated that these devices have a high false alarm rate and a poor probabilthe contention of the investigator that an improved pool alarm can be designed using passive sonar tobjective of phase I of this project is to show the feasibility of designing a passive sonar type porequired detection threshold of the alarm. A required detection threshold of greater than -8 dB willof the concept. A standard target based on the DOT CAMI Mark II infant dummy will be constructed andto record ambient noise and target signal. These tape recordings will be analyzed to determine the vequation variables and calculate the detection threshold. These sam recordings will be useful duringdeveloping the detection algorithm. They will be digitized for use in a computer simulation to findprobability of detection of the pool alarm. Phase III will involve the actual design of the pool ala