MONITORING THE WATER SAFETY OF AT LEAST ONE PERSON IN A BODY OF WATER

摘要

A method of monitoring water safety of one or more persons in a body of water having a water surface is disclosed. The method includes monitoring each person within the water on an ongoing basis by repeatedly sensing for thermal IR (infrared radiation) emitted by a part of a person that is above the surface of the water within a detection zone. Conveniently producing thermal information on the IR emitted by each object within the detection zone includes producing a thermal image or thermogram showing the intensity of the IR emission of different objects in the detection zone by means of different colours. This unique thermal signature of human beings enables this technology to identify each person within the detection zone and their position within the detection zone. The method includes registering a danger signal when the person has been submerged beneath the water surface for the predetermined period of time. The method further includes an alarm that is set off in response to a danger signal being relayed. A system for carrying out the method is also disclosed.