System for monitoring a swimming pool to prevent drowning accidents
AssigneePoseidon
InventorJerome Meniere
Life of this patent
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Abstract
A system for monitoring a swimming pool to prevent drowning accidents includes sensing devices (D1, D2, D3) for providing electrical signals forming images of bodies immersed in the pool water. Appropriate hardware (10) digitizes the resulting images, and the digital image data is compressed and stored at a series of times. Digitized images of a single body are compared at a series of times. The nature of a body, the path of the body and changes in the position of the body are estimated on the basis of the series of images; and an alarm is activated should the path or movement of the body being observed give cause for concern.
Claims20
A system for monitoring a swimming pool to prevent drowning accidents, which comprises:
- detection means (D1, D2, D3) comprising at least one video camera having a field of view, said at least one video camera being provided on a wall of the swimming pool in order to scan at least a fraction of the volume of water in the swimming pool, said video camera being adapted to give, in the form of electrical signals, images of bodies immersed in the water of the swimming pool;
- whereby there is no echo due to said swimming pool walls generated by said at least one video camera;
- means (10) for digitizing the electrical signals which are obtained from said at least one video camera;
- means (11a, 11b) for temporary and permanent storage of the digital data pertaining to said images at successive times;
- means (12, 13) for comparing the digitized images pertaining to the same body at successive times;
- means (12, 13) for assessing the nature of a body as to whether it is a human body, and for assessing the path and changes in attitude of the body on the basis of these successive images;
- and
- decision means (12, 13) adapted to operate alarm means (15) should the path or movement of the body being observed give cause for concern.
A system for monitoring a swimming pool to prevent drowning accidents, which comprises:
- detection means (D1, D2, D3) comprising a plurality of video cameras each of which has an observation cone directed in a different direction from the other observation cones of the other video cameras, said video cameras being distributed on at least one wall of the swimming pool with the observation cones of the various video cameras overlapping, said video cameras being adapted to give, in the form of electrical signals, images of bodies immersed in the water of the swimming pool;
- whereby there is no echo due to said swimming pool walls generated by said video cameras;
- means (10) for digitizing the electrical signals which are obtained from said video cameras;
- means (11a, 11b) for temporary and permanent storage of the digital data pertaining to said images at successive times;
- means (12, 13) for comparing the digitized images pertaining to the same body at successive times;
- means (12, 13) for assessing the nature of a body as to whether it is a human body, and for assessing the path and changes in attitude of the body on the basis of these successive images;
- and
- decision means (12, 13) adapted to operate alarm means (15) should the path or movement of the body being observed give cause for concern.
Dependencies are inferred from the claim text.