Abstract: A water survival system and a method are disclosed for detecting the danger of a person drowning in a body of water. The water survival system includes a breast belt and a life jacket. The breast belt has at least one physiological condition sensor affixed thereto while the life jacket has an expandable chamber connected to a compressed gas supply via an activating mechanism. As the compressed gas enters the expandable chamber, the life jacket increases in buoyancy. The life jacket also has a water contact sensor, a global positioning system device, first and second body orientation sensors, a transmitter which is capable of sending a signal to a remote receiver, and a control unit capable of receiving real time signals from each of the sensors and evaluating and comparing the real time signals against corresponding ranges of preset acceptable values to determine if the person wearing the life jacket is in danger of drowning.

Abstract: A device and a method are disclosed for detecting the danger of a person drowning in a body of water. The device includes a breast belt and a life jacket. The breast belt has at least one physiological condition sensor affixed thereto while the life jacket has an expandable chamber connected to a compressed gas supply via an activating mechanism. As the compressed gas enters the expandable chamber, the life jacket increases in buoyancy. The life jacket also has a water contact sensor, a global positioning system device, first and second body orientation sensors, a transmitter which is capable of sending a signal to a remote receiver, and a control unit capable of receiving real time signals from each of the sensors and evaluating and comparing the real time signals against corresponding ranges of preset acceptable values to determine if the person wearing the life jacket is in danger of drowning.

Abstract: Method and system for detecting danger of drowning for a person in water. The method may comprise: determining whether the person is located in the water, measuring the pulse of the person, determining the position of the person, monitoring the capacity of an energy source on the person, transferring data from the person to a receiver on exceeding a boundary value of a pre-determined parameter, a gas chamber on the person is filled with gas and thereby buoyancy is generated, as well as optionally activating an alarm in the receiver. The method may further comprise measuring breathing frequency of the person, measuring pressure at the water depth of the person, measuring body position of the person, and comparing boundary value data and generated data to each other in an evaluation/signal unit as well as when the gas chamber is filled with gas and/or the alarm is activated.